Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

P/N AND D/R NOT IN CORRECT POSITION
NOTE:
Check the TCM for DTCs, if P0706 is set in the TCM diagnose the TCM code before continuing.
1. Ignition on, engine not running.
2. With the scan tool, read the Park/Neutral Position Switch input state.
3. While moving the gear selector through all gear positions (Park to 1 and back to Park), monitor the scan tool display.
  Did the scan tool display show P/N and D/R in the correct gear positions?
  
  Yes
  - Perform the INTERMITTENT CONDITION Diagnostic Procedure. Refer to INTERMITTENT CONDITION .
  No
  - Go To 2.
TRS (T41) SENSE (P/N SENSE) CIRCUIT OPEN

Fig 1: Measuring Resistance Of TRS (T41) Sense (P/n Sense) Circuit From TRS Harness Connector To Appropriate Terminal Of Special Tool #8815
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the C3 PCM harness connector.
3. Disconnect the Transmission Range Sensor harness connector.
  CAUTION:
  Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis.
4. Measure the resistance of the TRS (T41) Sense (P/N Sense) circuit from the TRS harness connector to the appropriate terminal of special tool #(special tool #8815A, Kit, NGC, 38 Position).
  Is the resistance below 5.0 ohms?
  
  Yes
  - Go To 3.
  No
  - Repair the open in the TRS (T41) Sense (P/N Sense) circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
TRS (T41) SIGNAL CIRCUIT SHORTED TO GROUND

Fig 2: Measuring Resistance Between Ground And TRS Sense (P/n Sense) Circuit AT TRS Harness Connector
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the TRS (T41) Sense (P/N Sense) circuit at the TRS harness connector.
  Is the resistance above 100k ohms?
  
  Yes
  - Go To 4.
  No
  - Repair the short to ground in the TRS (T41) Sense (P/N Sense) circuit.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
TRANSMISSION RANGE SENSOR

Fig 3: Measuring Resistance Between Ground And TRS Sense (P/n Sense) Circuit AT TRS Harness Connector
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (T41) TRS Sense (P/N Sense) circuit while moving the gear selector through each gear in the TRS connector.
  NOTE:
  The circuit is grounded in Park and Neutral and open in the other positions.
  
  Did the resistance change from above 100 kohms (open) to below 10.0 ohms (grounded)?
  
  Yes
  - Go To 5.
  No
  - Replace the Transmission Range Sensor.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Transmission Solenoid and the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Solenoid and Powertrain Control Module connectors.
4. Refer to any Technical Service Bulletins that may apply.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace and program the Powertrain Control Module per Service Information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .