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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2010 (Automatic Transmission - Cd4E) >> Diagnostic Tests >> Pinpoint Tests - Non OSC Equipped Vehicle >> Pinpoint Tests >> Pinpoint Test C: Torque Converter Clutch (TCC) Solenoid

Pinpoint Test C: Torque Converter Clutch (TCC) Solenoid

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. C1 ELECTRONIC DIAGNOSTICS 
    • Key in OFF position.
    • Make sure the transaxle vehicle harness connector is fully seated, terminals are fully engaged in connector and in good condition before proceeding.
    • Connect the diagnostic tool.
    • Key in ON position.
    • Carry out KOEO Test until continuous DTCs have been displayed.
    • Select Output State Test Mode (OTM).
    • 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  C2 .
    2. NO  : PRESS START. If vehicle does not enter OTM, REFER to the Introduction - Gasoline Engines article.
  2. C2 CHECK ELECTRICAL SIGNAL OPERATION 
    CAUTION: Do not pry on the connector. This will damage the connector and can result in a transaxle concern. Press button and pull up on the transaxle vehicle harness connector.
    • Key in OFF position.
    • Disconnect: Transaxle Connector C199
    • Use a mirror to inspect both ends of the 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
      GF0024716Courtesy of FORD MOTOR CO.
    • Measure the voltage between C199 pin 2 and pin 4 of the transaxle vehicle harness connector.
    • While observing the VOM, press STAR and STOP to cycle solenoid output on and off.
    • Does the suspected solenoid output voltage change at least 0.5 volt? 
    1. YES  : Go to  C5.
    2. NO  : Go to  C3.
  3. C3 CHECK CONTINUITY OF SOLENOID SIGNAL AND VPWR HARNESS CIRCUITS 
    • Key in OFF position.
    • Disconnect: PCM
    • Disconnect: Transaxle Connector C199
      • Fig 2: Checking Circuit For Open
      GF0024717Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175T pin 46 and the transaxle harness C199 pin 4.
      • Fig 3: Checking Circuit For Open
      GF0024718Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175B pins 35 and 36 and the transaxle harness C199 pin 4.
    • Is each resistance less than 5 ohms? 
    1. YES  : Go to  C4.
    2. NO  : REPAIR open circuit(s). RECONNECT all components. RERUN Quick Test.
  4. C4 CHECK SOLENOID/HARNESS FOR SHORTS TO POWER AND GROUND 
    • Disconnect: PCM
    • Disconnect: Transaxle Connector
      • Fig 4: Checking Circuits For Short Together
      GF0024719Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175T pin 46 and the PCM C175B pins 35 and 36.
      • Fig 5: Checking Circuit For Short To Ground
      GF0024720Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175T pin 46 and the PCM C175B pins 47, 48, 49 and chassis ground.
      • Fig 6: Checking Circuit For Short To Ground
      GF0024721Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM C175T pin 46 and the PCM C175T pin 4 and chassis ground.
    • Is each resistance less than 10,000 ohms? 
    1. YES  : Go to  C5.
    2. NO  : REPAIR short circuit(s). RECONNECT all components. RERUN Quick Test.
  5. C5 TRANSAXLE FUNCTIONAL TEST 
    CAUTION: Do not pry on the connector. This will damage the connector and can result in a transaxle concern. Press button and pull up on the transaxle vehicle harness connector.
    NOTE: LED will turn GREEN when solenoid activates and turns OFF when deactivated. LED will turn RED if an activated solenoid/harness is shorted to B+. LED will remain OFF if an activated solenoid/harness is shorted to ground or no continuity (open circuit).
    • Disconnect: Transaxle Connector C199
    • Connect: Transmission Tester

      Carry out the TCC Solenoid Function Test as outlined in the Transmission Tester Manual.

    • Does TCC (LED green) activate when tester switch is pressed? 
    1. YES  : Go to  C6.
    2. NO  : Go to  C7.
  6. C6 TRANSAXLE DRIVE CYCLE TEST 
    • Connect: PCM
    • Carry out Dynamic Testing as outlined in the Transmission Tester Manual.
    • Does TCC activate (LED green) and engine RPM drop? 
    1. YES  : INSTALL a new PCM. RECONNECT all components. RERUN On-Board Diagnostic tests. If symptoms are still present, REFER to Diagnosis By Symptom .
    2. NO  : Go to  C7.
  7. C7 CHECK RESISTANCE OF SOLENOID/HARNESS 
    • Set Bench/Drive switch to BENCH mode.
    • Rotate gear select switch to OHMS CHECK position.
      • Fig 7: Checking Solenoid & Harness
      GF0024722Courtesy of FORD MOTOR CO.
    • Measure the resistance between TCC jack and VPWR jack on the Transmission Tester.
    • Is the resistance between 12.5 and 19.0 ohms? 
    1. YES  : Go to  C8.
    2. NO  : INSTALL a new solenoid body assembly.
  8. C8 CHECK SOLENOID/HARNESS FOR SHORT TO GROUND 
      Fig 8: Checking Circuit For Short To Ground
      GF0024723Courtesy of FORD MOTOR CO.
    • Measure the resistance between BAT- jack (engine ground) and TCC jack, and VPWR jack on Transmission Tester.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : INSTALL a new solenoid body assembly.
    2. NO  : REFER to Diagnosis By Symptom  to diagnose torque converter clutch.
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