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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1275 (Automatic Transaxle/Transmission External Controls) >> Diagnosis And Testing >> External Controls >> Pinpoint Tests >> Pinpoint Test B: THE PARK SWITCH IS INOPERATIVE

Pinpoint Test B: THE PARK SWITCH IS INOPERATIVE

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
  1. B1 CHECK CIRCUIT 15-TA34 (GN/YE) FOR OPEN 
    • Disconnect: Transmission Shift Selector C307.
    • Key in ON position.
    • Measure the voltage between transmission shift selector C307 pin 3, circuit 15-TA34 (GN/YE), harness side and ground.
      Fig 1: Measuring Voltage Between Transmission Shift Selector C307 Pin 3, Circuit 15-TA34 (GN/YE), Harness Side And Ground
      G03997802Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to  B2.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  2. B2 CHECK FOR VOLTAGE ON CIRCUIT 8-TA34 (WH) 
    • Connect: Transmission Shift Selector C307.
    • Disconnect: Instrument Cluster C220b.
    • Select PARK.
    • Key in ON position.
    • Measure the voltage between instrument cluster C220b pin 8, circuit 8-TA34 (WH), harness side and ground.
      Fig 2: Measuring Voltage Between Instrument Cluster Connector C220b Pin 8, Circuit 8-TA34 (WH), Harness Side And Ground
      G03997803Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
    • No  : GO to  B3.
  3. B3 CHECK CIRCUIT 8-TA34 (WH) FOR SHORT TO GROUND 
    • Key in OFF position.
    • Disconnect: Transmission Shift Selector C307.
    • Measure the resistance between transmission shift selector C307 pin 8, circuit 8-TA34 (WH), harness side and ground.
      Fig 3: Measure the resistance between transmission shift selector C307 pin 8, circuit 8-TA34 (WH), harness side and ground.
      G03997804Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    • Yes  : GO to  B4.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  4. B4 CHECK CIRCUIT 8-TA34 (WH) FOR OPEN 
    • Measure the resistance between transmission shift selector C307 pin 8, circuit 8-TA34 (WH), harness side and instrument cluster C220b pin 8, circuit 8-TA34 (WH), harness side.
      Fig 4: Measuring Resistance Between Transmission Shift Selector C307 Pin 8, Circuit 8-TA34 (WH), Harness Side And Instrument Cluster C220b Pin 8, Circuit 8-TA34 (WH), Harness Side
      G03997805Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new shifter harness. TEST the system for normal operation.
    • No  : REPAIR the circuit. TEST the system for normal operation.
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