Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

DETERMINING IF RELATED TIPM TCM POWER CONTROL CIRCUIT DTCS PRESENT
1. With the scan tool, read TIPM DTCs.
  Are there any TIPM TCM Power Control Circuit DTCs present also?
  
  Yes
  - Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing and perform the appropriate symptom.
  No
  - Go to step 2
CHECK FOR LOSS OF PRIME DTC
1. With the scan tool, check for other Transmission DTCs.
  Is the DTC P0944 present also?
  
  Yes
  - Refer to DTC Based Diagnostics and perform the appropriate diagnostic procedure.
  No
  - Go to step 3
CHECK TO SEE IF P0846 IS CURRENT
1. With the scan tool, view DTCs.
  Is the status Active or is the Starts Since Set counter 2 or less for this DTC?
  
  Yes
  - Go to step 4
  No
  - Go to step 8
PCM AND WIRING
1. Turn the ignition off to the lock position.
2. Remove the Ignition Switch Feed fuse from the TIPM.
  CAUTION: Removal of the Ignition Switch Feed fuse from the TIPM will prevent the vehicle from being started in gear.
  
  WARNING: The Ignition Switch Feed fuse must be removed from the TIPM. Failure to do so can result in personal injury or death.
3. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit.
4. Ignition on, engine not running.
5. With the Transmission Simulator, turn the Pressure Switch selector to 2/4.
6. With the scan tool , monitor the 2/4 Pressure Switch state while pressing the Pressure Switch Test button on the Transmission Simulator.
  Did the 2/4 Pressure Switch state change?
  
  Yes
  - Replace the Transmission Solenoid/Pressure Switch Assembly in accordance with the Service Information.
  - Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 5
(T47) 2/4 PRESSURE SWITCH Sensor CIRCUIT OPEN

Fig 1: Checking (T47) 2/4 Pressure Switch Sensor Circuit Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position.
2. Disconnect the PCM C4 harness connector.
3. Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
  NOTE: Check connectors - Clean/repair as necessary.
  
  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 Miller tool #8815 to perform diagnosis.
4. Measure the resistance of the (T47) 2/4 Pressure Switch Sensor circuit between the Transmission Solenoid/Pressure Switch Assembly harness connector and the appropriate terminal of Miller tool #8815.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (T47) 2/4 Pressure Switch Sensor circuit for an open.
  - Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 6
(T47) 2/4 PRESSURE SWITCH Sensor CIRCUIT SHORT TO GROUND

Fig 2: Checking (T47) 2/4 Pressure Switch Sensor Circuit Short To Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (T47) 2/4 Pressure Switch Sensor circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (T47) 2/4 Pressure Switch Sensor circuit for a short to ground.
  - Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 7
(T47) 2/4 PRESSURE SWITCH Sensor CIRCUIT SHORT TO VOLTAGE

Fig 3: Checking (T47) 2/4 Pressure Switch Sensor Circuit Short To Voltage
Courtesy of CHRYSLER LLC
1. Ignition on, engine not running.
2. With the scan tool under TIPM, actuate the Transmission.
3. Measure the voltage of the (T47) 2/4 Pressure Switch Sensor circuit.
  Is the voltage above 0.5 of a volt?
  
  Yes
  - Repair the (T47) 2/4 Pressure Switch Sensor circuit for a short to voltage.
  - Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
  No
  - Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. With the scan tool, perform Quick Learn
  - Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
INTERMITTENT WIRING AND CONNECTORS
1. The conditions necessary to set the DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
3. Wiggle the wires while checking for shorted and open circuits.
4. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Test Complete.