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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 121 (Automatic Transmission (6R80)) >> Diagnosis And Testing >> Diagnosis By Symptom >> Diagnostic Routines

Diagnostic Routines

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
ENGAGEMENT CONCERNS - NO FORWARD IN D

Possible Component Reference/Action
201 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid filter and seal assembly - plugged, damaged
  • INSTALL a new filter assembly.
Selector Lever Linkage   
  • Selector lever linkage - damage or incorrectly adjusted
Powertrain Control System   
  • PCM, external vehicle harness, main control molded leadframe or SSA.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Defective manual valve
  • INSPECT manual valve linkage.
  • Defective clutch (A) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Front pump adapter seal - cracked, leaking or damaged
  • INSTALL a new front pump adapter seal.
Clutch Plates   
  • Forward clutch (A) friction and steel plate - failure
  • Low OWC assembly - failure
  • INSPECT the OWC assembly for damage. The OWC must rotate counterclockwise and lock clockwise. INSTALL a new OWC. REFER to Transmission .
Pump   
  • Pump gear - failure
ENGAGEMENT CONCERNS - NO REVERSE

Possible Component Reference/Action
202 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid filter and seal assembly - plugged, damaged
  • INSTALL a new filter assembly.
Selector Lever Linkage   
  • Selector lever linkage - damage or incorrectly adjusted
Powertrain Control System   
  • PCM, external vehicle harness, main control molded leadframe or SSB.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Defective clutch (B) or clutch (D) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Front pump adapter seal - cracked, leaking or damaged
  • INSTALL a new front pump adapter seal.
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
  • Low/reverse clutch (D) friction and steel plate - failure
Pump   
  • Pump gear - failure
ENGAGEMENT CONCERNS - HARSH REVERSE

Possible Component Reference/Action
203 - ROUTINE 
Transmission Fluid   
  • Incorrect level
Powertrain Control System   
  • PCM, external vehicle harness, main control molded leadframe or SSB.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
Driveline   
  • Engine driveline looseness in the driveshaft, U-joints or the engine mounts
  • REPAIR as required.
ENGAGEMENT CONCERNS - HARSH FORWARD

Possible Component Reference/Action
204 - ROUTINE 
Transmission Fluid   
  • Incorrect level
Powertrain Control System   
  • PCM, external vehicle harness, main control molded leadframe or SSA.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Defective clutch (A) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (A) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Forward clutch (A) friction and steel plate - failure
  • Low OWC assembly - failure
  • INSPECT the OWC assembly for damage. The OWC must rotate counterclockwise and lock clockwise. INSTALL a new OWC. REFER to Transmission .
Driveline   
  • Engine driveline looseness in the driveshaft, U-joints or the engine mounts
  • REPAIR as required.
ENGAGEMENT CONCERNS - DELAYED/SOFT REVERSE

Possible Component Reference/Action
205 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid filter and seal assembly - plugged, damaged
  • INSTALL a new filter assembly.
Powertrain Control System   
  • PCM, external vehicle harness, main control molded leadframe or SSB.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Front pump adapter seal - cracked, leaking or damaged
  • INSTALL a new front pump adapter seal.
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
ENGAGEMENT CONCERNS - DELAYED/SOFT FORWARD

Possible Component Reference/Action
206 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid filter and seal assembly - plugged, damaged
  • INSTALL a new filter assembly.
Powertrain Control System   
  • PCM, external vehicle harness, main control molded leadframe or a defective SSA.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Defective clutch (A) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Front pump adapter seal - cracked, leaking or damaged
  • INSTALL a new front pump adapter seal.
Clutch Plates   
  • Forward clutch (A) friction and steel plate - failure
ENGAGEMENT CONCERNS - NO FORWARD AND NO REVERSE

Possible Component Reference/Action
207 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid filter and seal assembly - plugged, damaged
  • INSTALL a new filter assembly.
Main Control   
  • Defective manual valve
  • INSPECT connection to shift linkage.
  • Front pump adapter seal - cracked, leaking or damaged
  • INSTALL a new front pump adapter seal.
Pump   
  • Pump gear - failure
ENGAGEMENT CONCERNS - HARSH FORWARD AND HARSH REVERSE

Possible Component Reference/Action
208 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid filter and seal assembly - plugged, damaged
  • INSTALL a new filter assembly.
Powertrain Control System   
  • PCM electrical inputs/outputs, external vehicle wiring harnesses, main control molded leadframe, TR sensor, SSA or PCA
  • Multiple shift missing (more than one gear)
  • If some shifts are missing, DETERMINE which shifts do not occur. REFER to Clutch and Solenoid Application Charts . MONITOR appropriate PIDs as listed in diagnostics. REFER to Routine 210.
  • Gears 4-6 default to 5th gear and gears 1-3 default to 3rd gear
  • RETRIEVE DTCs.
ENGAGEMENT CONCERNS - DELAYED FORWARD AND DELAYED REVERSE

Possible Component Reference/Action
209 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission fluid filter and seal assembly - plugged, damaged
  • INSTALL a new transmission fluid filter assembly.
Powertrain Control System   
  • PCM, external vehicle wiring harnesses or main control molded leadframe
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs.
Main Control   
  • Front pump adapter seal - cracked, leaking or damaged
  • INSTALL a new front pump adapter seal.
SHIFT CONCERNS - SOME/ALL SHIFTS MISSING

Possible Component Reference/Action
210 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission fluid filter and seal assembly - plugged, damaged
Selector Lever Linkage Damaged or Incorrectly Adjusted   
  • Selector lever cable
Powertrain Control System   
  • PCM electrical inputs/outputs, external vehicle wiring harnesses, main control molded leadframe, TR sensor, SSA or PCA
  • Multiple shift missing (more than one gear)
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
  • Defective clutch (A) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (A) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (C) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (E) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (E) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Forward clutch (A) friction and steel plate - failure or Low OWC assembly - failure
  • For 1st, 2nd, 3rd or 4th gear concerns, INSPECT the forward clutch assembly for damage. REPAIR as required. REFER to FORWARD CLUTCH ASSEMBLY .
  • Direct clutch (B) friction and steel plate - failure
  • For 3rd or 5th gear concerns, INSPECT the direct clutch assembly for damage. REPAIR as required. REFER to DIRECT CLUTCH ASSEMBLY .
  • Intermediate clutch (C) friction and steel plate - failure
  • For 2nd or 6th gear concerns, INSPECT the intermediate clutch assembly for damage. REPAIR as required. REFER to INTERMEDIATE CLUTCH ASSEMBLY .
  • Overdrive clutch assembly - failure
  • INSPECT the overdrive clutch for damage. INSTALL a new overdrive clutch. REFER to Transmission .
SHIFT CONCERNS - TIMING - EARLY/LATE

Possible Component Reference/Action
211 - ROUTINE 
Powertrain Control System   
  • PCM electrical inputs/outputs, external vehicle wiring harnesses or main control molded leadframe
  • Engine driveability concerns
  • Verify transmission strategy is correct
Main Control   
  • Bolts not tightened to specification
  • TIGHTEN to specification.
  • Main control unit contaminated, solenoid(s) damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged
Incorrect Pressures   
  • Application pressures are incorrect
  • Incorrect application pressures may be due to non-transmission components, main control assembly or internal transmission damage. REPAIR all non-transmission components then CONTINUE with this routine.
Other   
  • Tire size change, axle ratio change
  • VERIFY that the vehicle has the original equipment. REFER to the certification label. Changes in tire size and axle ratio will affect shift timing.
SHIFT CONCERNS - TIMING - ERRATIC/HUNTING

Possible Component Reference/Action
212 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Condition
  • Transmission fluid over temperature condition
Powertrain Control System   
  • PCM electrical inputs/outputs, external vehicle wiring harnesses or main control molded leadframe
  • Verify transmission strategy is correct
Torque Converter Concerns   
  • Torque converter
FEEL CONCERNS - - SOFT OR SLIPPING (SOME OR ALL)

Possible Component Reference/Action
213 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission fluid filter and seal assembly - plugged, damaged
Powertrain Control System   
  • PCM electrical inputs/outputs, external vehicle wiring harnesses, main control molded leadframe or TFT sensor.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST B .
  • Verify transmission strategy is correct
Main Control   
  • Main control molded leadframe
  • Front pump adapter seal - cracked, leaking or damaged
  • INSTALL a new front pump adapter seal.
  • Bolts not tightened to specification
  • TIGHTEN to specification.
  • Main control contaminated, solenoid(s) damaged, stuck or bore damaged. Manual valve damaged, stick or bore damaged
  • INSPECT for damage. If damaged, INSTALL a new main control assembly. REFER to MAIN CONTROL .
FEEL CONCERNS - HARSH (SOME/ALL)

Possible Component Reference/Action
214 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission fluid filter and seal assembly - plugged, damaged
Powertrain Control System   
  • PCM electrical inputs/outputs, external vehicle wiring harnesses, main control molded leadframe or solenoid body information does not match PCM information
  • Verify transmission strategy is correct
Main Control   
  • Bolts not tightened to specification
  • TIGHTEN bolts to specification.
  • Main control contaminated, solenoid(s) damaged, solenoids stuck or bore damaged
  • INSPECT for damage. If damaged, INSTALL a new main control assembly. REFER to MAIN CONTROL .
  • Manual valve damaged, stuck or bore damaged
  • INSPECT for damage. If damaged, INSTALL a new main control assembly. REFER to MAIN CONTROL .
FEEL CONCERNS - NO 1ST GEAR, ENGAGES IN A HIGHER GEAR

Possible Component Reference/Action
215 - ROUTINE 
Powertrain Control System   
  • PCM, external vehicle wiring harnesses or main control molded leadframe
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs.
  • Verify transmission strategy is correct
Clutch Plates   
  • Low OWC assembly - failure
  • INSPECT the OWC assembly for damage. The OWC must rotate counterclockwise and lock clockwise. INSTALL a new OWC. REFER to Transmission .
Incorrect Gear   
  • Transmission failure
FEEL CONCERNS - NO MANUAL 1ST GEAR

Possible Component Reference/Action
216 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission fluid filter and seal assembly - plugged, damaged
Selector Lever Linkage   
  • Selector lever cable system - damaged, misaligned
Powertrain Control System   
  • PCM, external vehicle harness, main control molded leadframe or SSA.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
Clutch Plates   
  • Forward clutch (A) friction and steel plate - failure
  • Low/reverse clutch (D) friction and steel plate - failure
  • Low OWC assembly - failure
  • If below 3 mph, INSPECT the OWC assembly for damage. The OWC must rotate counterclockwise and lock clockwise. INSTALL a new OWC. REFER to Transmission .
Pump   
  • Pump gear - failure
FEEL CONCERNS - NO MANUAL 2ND GEAR

Possible Component Reference/Action
217 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission fluid filter and seal assembly - plugged, damaged
  • INSTALL a new transmission fluid filter assembly.
Selector Lever Linkage   
  • Selector lever cable system - damaged, misaligned
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe or SSA
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
Clutch Plates   
  • Forward clutch (A) friction and steel plate - failure
  • Intermediate clutch (C) friction and steel plate - failure
Pump   
  • Pump gear - failure
FEEL CONCERNS - NO MANUAL 3RD GEAR

Possible Component Reference/Action
218 - ROUTINE 
Selector Lever Linkage   
  • Selector lever cable system - damaged, misaligned
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe or SSB.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
Clutch Plates   
  • Forward clutch (A) friction and steel plate - failure
  • Direct clutch (B) friction and steel plate - failure
Pump   
  • Pump gear - failure
FEEL CONCERNS - NO 1-2 SHIFT (AUTOMATIC)

Possible Component Reference/Action
220 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission fluid filter and seal assembly - plugged, damaged
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe, SSC or SSD.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (C) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Intermediate clutch (C) friction and steel plate - failure
  • Low/reverse clutch (D) friction and steel plate - failure
  • Low OWC assembly - failure
  • INSPECT the OWC assembly for damage. The OWC must rotate counterclockwise and lock clockwise. INSTALL a new OWC. REFER to Transmission .
FEEL CONCERNS - NO 2-3 SHIFT (AUTOMATIC)

Possible Component Reference/Action
221 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission fluid filter and seal assembly - plugged, damaged
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe, SSB or SSC.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (C) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
  • Intermediate clutch (C) friction and steel plate - failure
FEEL CONCERNS - NO 3-4 SHIFT (AUTOMATIC)

Possible Component Reference/Action
222 - ROUTINE 
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe, SSB, SSD or SSE.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (E) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective solenoid multiplex valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
  • Overdrive clutch (E) friction and steel plate - failure
FEEL CONCERNS - NO 4-3 SHIFT (AUTOMATIC)

Possible Component Reference/Action
223 - ROUTINE 
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe, SSB or SSD.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
  • Defective clutch (E) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (E) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Solenoid multiplex valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Drive enable valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
  • Overdrive clutch (E) friction and steel plate - failure
FEEL CONCERNS - NO 3-2 SHIFT (AUTOMATIC)

Possible Component Reference/Action
224 - ROUTINE 
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe, SSB or SSC.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (C) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
  • Intermediate clutch (C) friction and steel plate - failure
FEEL CONCERNS - NO 2-1 SHIFT (AUTOMATIC)

Possible Component Reference/Action
225 - ROUTINE 
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe or SSC.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
  • Verify transmission strategy is correct
Main Control   
  • Leadframe - contamination
  • Defective clutch (C) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Intermediate clutch (C) friction and steel plate - failure
  • Low OWC assembly - failure
  • INSPECT the OWC assembly for damage. The OWC must rotate counterclockwise and lock clockwise. INSTALL a new OWC. REFER to TRANSMISSION .
TORQUE CONVERTER OPERATION CONCERNS - NO APPLY

Possible Component Reference/Action
240 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid condition
Powertrain Control System   
  • PCM, external vehicle wiring harnesses, main control molded leadframe or TCC solenoid.
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Leadframe - contamination
  • Main control assembly contaminated, solenoid(s) damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged
  • INSPECT for damage. If damaged, install a new main control assembly. REFER to MAIN CONTROL .
  • Defective torque converter apply regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective torque converter release regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Main control assembly bolts - not tightened to specification
  • TIGHTEN to specification.
Torque Converter   
  • Torque converter components
  • REMOVE the transmission, REFER to Transmission . INSPECT torque converter for damage. INSTALL a new or remanufactured torque converter. If a new or remanufactured torque converter is installed, use the scan tool and follow the on-screen instructions and perform the Misfire Monitor Neutral Profile Correction procedure.
TORQUE CONVERTER OPERATION CONCERNS - CYCLING/CHATTER

Possible Component Reference/Action
241 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid condition
Powertrain Control System   
  • PCM, vehicle wiring harnesses, main control molded leadframe, TCC solenoid or TFT sensor
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A  for TCC solenoid diagnosis and GO to PINPOINT TEST B  for TFT sensor diagnosis.
Main Control   
  • Leadframe - contamination
  • Main control assembly contaminated, solenoid(s) damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged
  • INSPECT for damage. If damaged, install a new main control assembly. REFER to MAIN CONTROL .
  • Defective torque converter apply regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Main control assembly bolts - not tightened to specification
  • TIGHTEN to specification.
Torque Converter   
  • Torque converter components
  • REMOVE the transmission, REFER to Transmission . INSPECT for damage. INSTALL a new or remanufactured torque converter. If a new or remanufactured torque converter is installed, use the scan tool and follow the on-screen instructions and perform the Misfire Monitor Neutral Profile Correction procedure.
TORQUE CONVERTER OPERATION CONCERNS - ALWAYS APPLIED/STALLS VEHICLE

Possible Component Reference/Action
242 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid condition
Powertrain Control System   
  • PCM, vehicle wiring harnesses, main control molded leadframe, TCC solenoid or TFT sensor
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A  for TCC solenoid diagnosis and GO to PINPOINT TEST B  for TFT sensor diagnosis.
Main Control   
  • Leadframe - contamination
  • Main control assembly contaminated, solenoid(s) damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged
  • INSPECT for damage. If damaged, install a new main control assembly. REFER to MAIN CONTROL .
  • Main control assembly bolts - not tightened to specification
  • TIGHTEN to specification.
Torque Converter   
  • Torque converter components
  • REMOVE the transmission, REFER to Transmission . INSPECT for damage. INSTALL a new or remanufactured torque converter. If a new or remanufactured torque converter is installed, use the scan tool and follow the on-screen instructions and perform the Misfire Monitor Neutral Profile Correction procedure.
OTHER CONCERNS - EXTERNAL LEAKS

Possible Component Reference/Action
252 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Transmission case vent - damaged, case porosity
  • REPAIR as necessary.
  • Leakage at gaskets, seals, electrical connector
  • REFER to LEAKAGE INSPECTION , Fluid Leakage in Torque Converter Area and Leak Check Test with A Black Light. REMOVE all traces of lubricant on exposed surface of the transmission. REPAIR as necessary.
Fluid Cooler Tubes   
  • Cooler tube fittings
  • Cooler tube O-rings, cooler tubes
Torque Converter   
  • Torque converter studs
  • INSTALL a new torque converter.
  • Torque converter hub seal
  • INSTALL a new torque converter hub seal.
  • Torque converter weld
  • INSTALL a new torque converter. If a new or remanufactured torque converter is installed, use the scan tool and follow the on-screen instructions and perform the Misfire Monitor Neutral Profile Correction procedure.
Transmission Case   
  • Case - leaking
  • Transmission electrical connector
  • INSTALL a new transmission electrical connector O-ring.
  • Transmission fluid fill plug
  • INSTALL a new transmission fluid fill plug.
  • Output shaft seal
  • Manual control lever seal
  • INSTALL a new seal.
  • Transmission fluid pan gasket
  • INSTALL a new gasket.
Fluid Pump   
  • Fluid pump O-ring
  • Fluid pump seal ring
NOTE: NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, refer to NOISE, VIBRATION & HARSHNESS . Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, refer back to NOISE, VIBRATION & HARSHNESS for the next likely system and continue diagnosis.
OTHER CONCERNS - NOISE/VIBRATION IN FORWARD OR REVERSE

Possible Component Reference/Action
254 - ROUTINE 
Transmission Fluid   
  • Incorrect level (low) pump cavitation
Fluid Cooler Tubes   
  • Cooler line grounding out
  • ADJUST or REPOSITION cooler tubes.
Selector Lever Cable   
  • Selector lever cable incorrectly routed
Torque Converter   
  • Check the torque converter components/balance weight
  • LOCATE source of disturbance. REPAIR as required.
Engine Driveline   
  • Engine drive accessories
OTHER CONCERNS - ENGINE WILL NOT CRANK

Possible Component Reference/Action
255 - ROUTINE 
Selector Lever Cable System   
  • Selector lever cable system - damaged, misaligned
Powertrain Control System   
  • PCM, vehicle wiring harnesses, engine starting and charging system, main control molded leadframe or TR sensor
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST C .
Torque Converter   
  • Flexplate - damaged
  • REPAIR as necessary.
Vehicle Starter   
  • Starter system concerns
Fluid Pump Assembly   
  • Internal parts seized
  • REPAIR as necessary.
OTHER CONCERNS - NO PARK (P) RANGE

Possible Component Reference/Action
256 - ROUTINE 
Selector Lever Cable   
  • Selector lever cable system - damaged, misaligned
  • Manual control lever assembly damaged, manual valve inner lever pin bent, manual valve inner lever damaged, spring rod damaged, park pawl pin loose or damaged, park rod actuating plate loose, damaged or missing
  • REPAIR as necessary.
  • Transmission case assembly
  • INSPECT for damage. If damaged, REPAIR as necessary.
  • Park gear, park pawl, park pawl return spring, part or guide, park actuating rod, park pawl shaft, manual lever
  • INSPECT for damage. If damaged, REPAIR as necessary.
  • External linkages/brackets - damaged
  • REPAIR as necessary.
Powertrain Control System   
  • PCM, vehicle wiring harnesses, main control molded leadframe or TR sensor
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST C .
TR Sensor Assembly Damaged   
  • Manual lever detent spring
  • REPAIR as necessary.
  • TR assembly
  • INSTALL a new main control assembly. REFER to MAIN CONTROL .
OTHER CONCERNS - TRANSMISSION OVERHEATING

Possible Component Reference/Action
257 - ROUTINE 
Transmission Fluid   
  • Incorrect level
  • Fluid condition
Powertrain Control System   
  • PCM, vehicle wiring harnesses, main control molded leadframe, TCC solenoid or TFT sensor
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A  for TCC solenoid diagnosis and GO to PINPOINT TEST B  for TFT sensor diagnosis.
Torque Converter Not Engaging   
  • Torque converter
  • INSTALL a new torque converter. If a new or remanufactured torque converter is installed, use the scan tool and follow the on-screen instructions and perform the Misfire Monitor Neutral Profile Correction procedure.
Case Vent Damaged   
  • Transmission case assembly
  • INSPECT for damage. If damaged, REPAIR as necessary.
Other   
  • Restriction in transmission cooling system
  • Vehicle heat shield - missing or damaged
  • REPAIR as necessary.
  • Vehicle airflow is restricted
  • INSPECT for damage. If damaged, REPAIR as necessary.
  • Thermal bypass valve - missing or damaged
OTHER CONCERNS - FLUID VENTING/FOAMING

Possible Component Reference/Action
261 - ROUTINE 
Transmission Fluid   
  • Incorrect level
Case Vent Damaged   
  • Transmission case assembly
  • INSPECT for damage. If damaged, REPAIR as necessary.
FEEL CONCERNS - NO 4-5 SHIFT (AUTOMATIC)

Possible Component Reference/Action
270 - ROUTINE 
Powertrain Control System   
  • PCM, vehicle wiring harnesses, main control molded leadframe, SSA solenoid or SSB sensor
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Leadframe - contamination
  • Defective clutch (A) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (A) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Forward clutch (A) friction and steel plate - failure
  • Direct clutch (B) friction and steel plate - failure
FEEL CONCERNS - NO 5-4 SHIFT (AUTOMATIC)

Possible Component Reference/Action
271 - ROUTINE 
Powertrain Control System   
  • PCM, vehicle wiring harnesses, main control molded leadframe or SSB
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Leadframe - contamination
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (A) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
  • Forward clutch (A) friction and steel plate - failure
FEEL CONCERNS - NO 5-6 SHIFT (AUTOMATIC)

Possible Component Reference/Action
272 - ROUTINE 
Powertrain Control System   
  • PCM, vehicle wiring harnesses, main control molded leadframe, SSB or SSC
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Leadframe - contamination
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (C) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
  • Intermediate clutch (C) friction and steel plate - failure
FEEL CONCERNS - NO 6-5 SHIFT (AUTOMATIC)

Possible Component Reference/Action
273 - ROUTINE 
Powertrain Control System   
  • PCM, vehicle wiring harnesses, main control molded leadframe or SSC
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the KOEO and KOER self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A .
Main Control   
  • Leadframe - contamination
  • Defective clutch (B) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (B) latch valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
  • Defective clutch (C) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
Clutch Plates   
  • Direct clutch (B) friction and steel plate - failure
  • Intermediate clutch (C) friction and steel plate - failure