Diagnostic Routines

WARNING: This page is about a different variant/trim than selected.

ENGAGEMENT CONCERNS: NO FORWARD AND/OR NO REVERSE

Possible Component	Reference/Action
207 - ROUTINE
No Forward, No Reverse, No Forward or Reverse
Selector lever linkage damaged or out of position	Using a scan tool, CHECK selector lever position. REFER to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS - AISIN AW21/6F35 .
Incorrect neutral switch position	CARRY OUT neutral position learning. REFER to NEUTRAL POSITION LEARNING . DISCONNECT the Transmission Control Module (TCM) electrical connector. If concern still exists, this indicates an internal mechanical problem. CONNECT the TCM and CARRY OUT pressure checks. If concern is resolved by disconnecting the TCM, this indicates an electrical concern. INSTALL a new TCM. REFER to TRANSMISSION CONTROL MODULE (TCM) . CHECK wiring harness (external and internal) valve body connections.
Halfshafts broken	INSPECT for damaged or broken halfshafts. REFER to FRONT DRIVE HALFSHAFTS .

ENGAGEMENT CONCERNS: HARSH

Possible Component	Reference/Action
208 - ROUTINE
Harsh Engagements
Initial learn values wrong	CARRY OUT Transmission Control Module (TCM) initial learning procedure. REFER to TRANSMISSION CONTROL MODULE (TCM) INITIAL LEARNING .
Damaged internal transaxle components causing high or low pressures	CARRY OUT pressure test. Refer to SPECIAL TESTING PROCEDURES .
Damaged or malfunctioning solenoids	CARRY OUT pinpoint test. REFER to PINPOINT TESTS - OSC EQUIPPED VEHICLE .

ENGAGEMENT CONCERNS: SOFT

Possible Component	Reference/Action
209 - ROUTINE
Soft Engagements
Initial learn values wrong	CARRY OUT Transmission Control Module (TCM) initial learning procedure. REFER to TRANSMISSION CONTROL MODULE (TCM) INITIAL LEARNING .
Damaged internal transaxle components causing high or low pressures	CARRY OUT pressure test. REFER to SPECIAL TESTING PROCEDURES .
Damaged or malfunctioning solenoids	CARRY OUT pinpoint test. REFER to PINPOINT TESTS - OSC EQUIPPED VEHICLE .

TORQUE CONVERTER CLUTCH OPERATIONS CONCERNS: DOES NOT APPLY

Possible Component	Reference/Action
240 - ROUTINE
Torque Converter Does Not Apply
Damaged or malfunctioning solenoid	CARRY OUT pinpoint test. REFER to PINPOINT TESTS - OSC EQUIPPED VEHICLE . INSTALL a new main control valve body. REFER to MAIN CONTROL VALVE BODY .
Damaged or disconnected wire harness	INSPECT wire harness. CHECK connections to the Torque Converter Clutch (TCC) solenoid.
Damaged or malfunctioning torque converter	INSTALL a new torque converter. REFER to TORQUE CONVERTER .

TORQUE CONVERTER CLUTCH OPERATIONS CONCERNS: CYCLING/SHUTTER/CHATTERS

Possible Component	Reference/Action
242 - ROUTINE
Torque Converter Cycling/Shudder/Chatters
Damaged or malfunctioning Torque Converter Clutch (TCC) solenoid	INSTALL a new main control valve body. REFER to MAIN CONTROL VALVE BODY .
Damaged or disconnected wire harness	INSPECT wire harness. CHECK connections to the TCC solenoid.
Damaged or malfunctioning torque converter	INSTALL a new torque converter. REFER to TORQUE CONVERTER .

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 - FORWARD OR REVERSE

Possible Component	Reference/Action
254 - ROUTINE
Powertrain Control System
Transmission Control Module (TCM), vehicle wiring harnesses, Shift Solenoid A (SSA) and Shift Solenoid B (SSB)	CARRY OUT On-Board Diagnostic (OBD) tests. REFER to the INTRODUCTION - FUSION HYBRID AND MKZ HYBRID for diagnosis and testing of the TCM. GO to PINPOINT TEST A . REPAIR as required. CLEAR the DTCs, road test and retrieve any DTCs.
Incorrect Transmission Fluid Level
Transmission fluid level low/overfilled	CHECK the transmission fluid level. ADJUST the transmission fluid level as necessary. REFER to PRELIMINARY INSPECTION .
Torque Converter
Worn or damaged torque converter	REFER to TORQUE CONVERTER DIAGNOSIS .
Transaxle Support Insulator
Worn or damaged transaxle support insulator	INSPECT the transaxle support insulator for damage. INSTALL new as necessary. REFER to TRANSAXLE SUPPORT INSULATOR .

OTHER CONCERNS: TRANSMISSION FLUID LEVEL

Possible Component	Reference/Action
286 - ROUTINE
Low Transmission Fluid Level
Axle shaft seal leaking	INSTALL new axle shaft seals. REFER to DIFFERENTIAL SEALS - LH , DIFFERENTIAL SEALS - RH, FRONT WHEEL DRIVE (FWD) and DIFFERENTIAL SEALS - RH, ALL WHEEL DRIVE (AWD) .
Transmission fluid pan leaking	RESEAL the transmission fluid pan.
Torque converter hub seal leaking	INSTALL a new torque converter hub seal. REFER to TORQUE CONVERTER HUB SEAL .
Transmission fluid cooler tubes leaking	INSTALL new transmission fluid cooler tube O-rings.
Manual control lever seal leaking	INSTALL a new manual control lever seal. REFER to MANUAL CONTROL LEVER SHAFT AND SEAL .
Transmission fluid drain plug leaking	INSTALL a new transmission fluid drain plug seal.

OTHER CONCERNS: TRANSMISSION FLUID CONDITION

Possible Component	Reference/Action
287 - ROUTINE
Transmission Fluid Burnt or Contaminated
Internal components damaged (clutch plate material)	INSTALL a new transaxle. REFER to TRANSAXLE .

OTHER CONCERNS: TRANSMISSION CONTROL MODULE (TCM) SOFTWARE

Possible Component	Reference/Action
288 - ROUTINE
Shifting and Driveability Concerns
Transmission Control Module (TCM) not at current software level	REPROGRAM the TCM to current software level.