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

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. G1 ELECTRONIC DIAGNOSTICS 
    • Key in OFF position.
    • Connect: Transaxle Connector.
    • Connect the scan 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? 

    Yes:  REMAIN in OTM. GO to  G2.

    No:  PRESS START. If vehicle does not enter OTM, REFER to INTRODUCTION - GASOLINE .

  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.
    • 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.
    • Measure the voltage between pin 5 and pin 10 at the transaxle vehicle harness connector.
      Fig 1: Checking Electrical Signal Operation
      G04619826Courtesy of FORD MOTOR CO.
    • 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? 

    Yes:  GO to  G6.

    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.
    • Measure the resistance between the PCM pins C35 and C36 and transaxle vehicle harness connector pin 5.
      Fig 2: Checking Continuity Of Solenoid Signal & VPWR Harness Circuit (1 Of 2)
      G04619827Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM pin T23 and the transaxle vehicle harness connector pin 10.
      Fig 3: Checking Continuity Of Solenoid Signal & VPWR Harness Circuit (2 Of 2)
      G04619828Courtesy of FORD MOTOR CO.
    • Is each resistance less than 5 ohms? 

    Yes:  GO to  G4.

    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.
    • Measure the resistance between the PCM pin T23 and the PCM pins C35 and C36.
      Fig 4: Checking Harness For Short To Power Or Ground (1 Of 3)
      G04619829Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM pin T23 and the PCM pins C47, C48 and C49.
      Fig 5: Checking Harness For Short To Power Or Ground (2 Of 3)
      G04619830Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM pin T23 and the PCM pin T41.
      Fig 6: Checking Harness For Short To Power Or Ground (3 Of 3)
      G04619831Courtesy of FORD MOTOR CO.
    • Is each resistance greater than 10,000 ohms? 

    Yes:  GO to  G5.

    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? 

    Yes:  GO to  G6.

    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)? 

    Yes:  INSTALL a new PCM. RERUN On-Board Diagnostics tests.

    No:  GO to  G7.

  7. G7 CHECK RESISTANCE OF SOLENOID 
    • Measure the resistance between VPWR jack and 3-2T/CCS jack on the Transmission Tester.
      Fig 7: Checking Resistance Of Solenoid
      G04619832Courtesy of FORD MOTOR CO.
    • Is the resistance between 3.75-5.92 ohms? 

    Yes:  GO to  G8.

    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 
    • Measure the resistance between jack BAT- (engine ground) and VPWR jack and 3-2T/CCS jack on the Transmission Tester.
      Fig 8: Checking Solenoid For Short To Ground
      G04619833Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 

    Yes:  INSTALL a new solenoid body assembly. REFER to MAIN CONTROL VALVE BODY . CLEAR the DTCs. RERUN On-Board Diagnostics tests.

    No:  REFER to DIAGNOSIS BY SYMPTOM .

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