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Pinpoint Test G: Timing/Coast Clutch Solenoid (3-2T/CCS)

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to the Transaxle Vehicle Harness Connector illustration Transaxle Connector Layouts .
  1. G1 ELECTRONIC DIAGNOSTICS 
    • Key in OFF position.
    • Connect: Transaxle Connector C199
    • Connect the diagnostic tool.
    • Key in ON position.
    • Carry out KOEO Test until continuous DTCs have been displayed.
    • Enter Output Test Mode (OTM). Refer to On-Board Diagnostics.
    • Select the mode ALL ON. Push START to turn outputs on. Push STOP to turn outputs off.
    • Does vehicle enter OTM? 
    1. YES  : REMAIN in OTM. Go to  G2 .
    2. NO  : PRESS START. If vehicle does not enter OTM, REFER to the Introduction - Gasoline Engines article.
  2. G2 CHECK ELECTRICAL SIGNAL OPERATION 
    CAUTION: Do not try to remove the connector with a screwdriver, press and pull transaxle vehicle harness connector.
    • Key in OFF position.
    • Disconnect: Transaxle Connector C199
    • Use a mirror to inspect both ends of connector for damaged or pushed-out pins, corrosion, loose wires and missing or damaged seals.
    • Key in ON position.
      • Fig 1: Checking Circuit For Voltage
      GF0024748Courtesy of FORD MOTOR CO.
    • Measure the voltage between pin 8 and pin 9 at the transaxle vehicle harness connector.
    • Observe voltmeter and press START and STOP to cycle solenoid output on and off.
    • Does the suspect solenoid output voltage change at least 0.5 volt? 
    1. YES  : Go to  G6.
    2. NO  : Go to  G3.
  3. G3 CHECK CONTINUITY OF SOLENOID SIGNAL AND VPWR HARNESS CIRCUIT 
    • Key in OFF position.
    • Disconnect: PCM
    • Inspect for damaged or pushed-out pins, corrosion, loose wires and missing or damaged seals.
      • Fig 2: Checking Circuit For Open
      GF0024749Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175B pins 35 and 36 and transaxle vehicle harness C199 pin 9.
      • Fig 3: Checking Circuit For Open
      GF0024750Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175T pin 23 and the transaxle vehicle harness C199 pin 8.
    • Is each resistance less than 5 ohms? 
    1. YES  : Go to  G4.
    2. NO  : REPAIR the circuit(s). RECONNECT all components. CLEAR the DTCs. RERUN On-Board Diagnostics tests.
  4. G4 CHECK HARNESS FOR SHORT TO POWER OR GROUND 
    • Disconnect: PCM
    • Disconnect: Transaxle Harness C199
      • Fig 4: Checking Circuits For Short Together
      GF0024751Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175T pin 23 and the PCM C175B pins 35 and 36.
      • Fig 5: Checking Circuits For Short Together
      GF0024752Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175T pin 23 and the PCM C175B pins 47, 48 and 49.
      • Fig 6: Checking Circuits For Short Together
      GF0024753Courtesy of FORD MOTOR CO.
    • For vehicles equipped with 2.3L engine, measure the resistance between the PCM C175T pin 23 and the PCM C175T pin 41.
      • Fig 7: Checking Circuits For Short Together
      GF0024753Courtesy of FORD MOTOR CO.
    • For vehicles equipped with 3.0L engine, measure the resistance between the PCM C175T pin 23 and the PCM C175E pin 41.
    • Is each resistance greater than 10,000 ohms? 
    1. YES  : Go to  G5.
    2. NO  : REPAIR the circuit. RECONNECT all components. RERUN On-Board Diagnostics tests.
  5. G5 TRANSAXLE FUNCTIONAL TEST 
    CAUTION: Do not pry on the connector. This will damage the connector and can result in a transaxle concern. Pull on the connector harness.
    NOTE: LED will turn GREEN when solenoid activates and turn OFF when deactivated. LED will turn RED if an activated solenoid/harness is shorted to battery positive. LED will remain OFF if an activated solenoid/harness is shorted to ground or no continuity (open circuit).
    • Disconnect: Transaxle Harness Connector
    • Connect: Transmission Tester
    • Carry out all Static Testing - Engine OFF procedures for the shift solenoids.
    • Does solenoid (LED green) activate? 
    1. YES  : Go to  G6.
    2. NO  : Go to  G7.
  6. G6 TRANSAXLE DRIVE TEST 
    • Connect: PCM
    • Disconnect: Transaxle Harness
    • Connect: Transmission Tester
    • Set Bench/Drive switch to DRIVE mode.
    • Rotate gear selector switch to 1st gear position.
    • Carry out the 3-2T/CCS Function Test outlined in the Transmission Tester manual.
    • When the 3-2T/CCS switch is released, does engine braking occur and does the 3-2T/CCS engage (LED OFF)? 
    1. YES  : INSTALL a new PCM. RERUN On-Board Diagnostics tests.
    2. NO  : Go to  G7.
  7. G7 CHECK RESISTANCE OF SOLENOID 
      Fig 8: Checking Solenoid Resistance
      GF0024754Courtesy of FORD MOTOR CO.
    • Measure the resistance between VPWR jack and 3-2T/CCS jack on the Transmission Tester.
    • Is the resistance between 3.75-5.92 ohms? 
    1. YES  : Go to  G8.
    2. NO  : INSTALL a new solenoid body assembly. REFER to Main Control Valve Body . CLEAR the DTCs. RERUN On-Board Diagnostics tests.
  8. G8 CHECK SOLENOID FOR SHORT TO GROUND 
      Fig 9: Checking Circuit For Short To Ground
      GF0024755Courtesy of FORD MOTOR CO.
    • Measure the resistance between jack BAT- (engine ground) and VPWR jack and 3-2T/CCS jack on the Transmission Tester.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : INSTALL a new solenoid body assembly. REFER to Main Control Valve Body . CLEAR the DTCs. RERUN On-Board Diagnostics tests.
    2. NO  : REFER to Diagnosis By Symptom .
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