Pinpoint Test B: Select Shift Does Not Operate/Overdrive (O/D) Does Not Cancel

B1 CHECK CIRCUITS CET43 (GY) AND CET42 (GN/VT) INPUT TO THE PCM
- Ignition ON.
- Move the selector lever to the "M" position.
  
  Fig 1: Moving Selector Lever To "M" Position
  Courtesy of FORD MOTOR CO.
- Disconnect: PCM C175T.
- Measure the resistance between PCM C175T-42, circuit CET43 (GY), harness side and ground.
  
  Fig 2: Measuring Resistance Between PCM C175T-42, Circuit CET43 (GY) And Ground
  Courtesy of FORD MOTOR CO.
- Measure the resistance between PCM C175T-44, circuit CET42 (GN/VT), harness side and ground.
  
  Fig 3: Measuring Resistance Between PCM C175T-44, Circuit CET42 (GN/VT) And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
- Yes: GO to B4.
- No: GO to B2 .
B2 CHECK TRANSMISSION SELECT SHIFT CIRCUITS FOR OPEN
- Disconnect: Selector Lever Harness C3245.
- Measure the resistance between selector lever C3245-5, harness side and ground.
  
  Fig 4: Measuring Resistance Between Selector Lever C3245-5 And Ground
  Courtesy of FORD MOTOR CO.
- Measure the resistance between selector lever C3245-9, harness side and ground.
  
  Fig 5: Measuring Resistance Between Selector Lever C3245-9 And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
- Yes: GO to B3 .
- No: REPAIR the circuits. TEST system for normal operation.
B3 CHECK CIRCUITS CET43 (GY) AND CET42 (GN/VT) FOR OPEN
- Measure the resistance between selector lever C3245-7, circuit CET43, harness side and PCM C175T-42.
  
  Fig 6: Measuring Resistance Between Selector Lever C3245-7, Circuit CET43 And PCM C175T-42
  Courtesy of FORD MOTOR CO.
- Measure the resistance between selector lever C3245-8, circuit CET43, harness side and PCM C175T-44.
  
  Fig 7: Measuring Resistance Between Selector Lever C3245-8, Circuit CET43 And PCM C175T-44
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
- Yes: INSTALL a new selector lever. TEST the system for normal operation.
- No: REPAIR the circuits. TEST the system for normal operation.
B4 CHECK CIRCUITS CET43 (GY) AND CET42 (GN/VT) FOR SHORT TO GROUND
- Disconnect: Selector Lever Harness C3245.
- Measure the resistance between PCM C175T-42, circuit CET43 (GY), harness side and ground.
  
  Fig 8: Measuring Resistance Between PCM C175T-42, Circuit CET43 (GY) And Ground
  Courtesy of FORD MOTOR CO.
- Measure the resistance between PCM C175T-44, circuit CET42 (GN/VT), harness side and ground.
  
  Fig 9: Measuring Resistance Between PCM C175T-44, Circuit CET42 (GN/VT) And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 10,000 ohms?
- Yes: GO to B5 .
- No: REPAIR circuit. TEST system for normal operation.
B5 CHECK THE TRANSMISSION SELECTOR LEVER SELECT SHIFT SWITCHES
- Connect: Selector Lever Harness C3245.
- Measure the resistance between PCM C175T-42, circuit CET43 (GY), harness side and ground while moving the selector lever to the " + (ON)" back to "M" (OFF) positions.
  
  Fig 10: Measuring Resistance Between PCM C175T-42, Circuit CET43 (GY) And Ground
  Courtesy of FORD MOTOR CO.
- Measure the resistance between PCM C175T-44, circuit CET42 (GN/VT), harness side and ground while moving the selector lever to the " - (ON)" back to "M" (OFF) positions.
  
  Fig 11: Measuring Resistance Between PCM C175T-44, Circuit CET42 (GN/VT) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms with the switch ON and greater than 10,000 ohms with the switch OFF?
- Yes: INSTALL a new PCM.
- No: INSTALL a new selector lever. TEST the system for normal operation.