Diagnostic Test

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

DETERMINING IF RELATED DTCS ARE PRESENT
1. With the scan tool, check DTCs
  Is the DTC P0841 present also?
  
  Yes
  - Refer to DIAGNOSTIC CODE INDEX and perform the appropriate diagnostic procedure .
  No
  - Go To 2.
CHECK THE EVENT DATA FOR TRS CODE TR2
1. With the scan tool, check the Event Data for P1776.
  Does the Event Data show a TRS Code of TR2?
  
  Yes
  - This indicates the shift lever and the manual control valve were in the T2 transition zone between Neutral and OD. Check the shifter cable for: proper adjustment, binding, friction, improper routing, or the shifter was moved in transit. Repair as necessary.
  - Refer to STANDARD PROCEDURE and perform the 62TE VERIFICATION TEST .
  No
  - Go To 3.
CHECK TO SEE IF DTC P1776 IS CURRENT
1. With the scan tool, check the Starts Since Set counter for P1776.
  NOTE:
  This counter only applies to the last DTC set.
  
  Is the status Active or is the Starts Since Set counter 2 or less for this DTC?
  
  Yes
  - Go To 4.
  No
  - Go To 9.
CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR
1. Turn the ignition off to the lock position.
2. Remove the Starter Relay.
  CAUTION:
  Removal of the Starter Relay will prevent the vehicle from being started in gear.
  
  WARNING:
  The Starter Relay must be removed from the PDC. Failure to do so may result in possible serious or fatal injury.
  
  NOTE:
  Failure to remove the Starter Relay can cause a Transmission - No Response condition.
3. Install the Transmission Simulator (special tool #8333A, Simulator, Transmission) and the Electronic Transmission Adapter kit.
4. Ignition on, engine not running.
5. With the Transmission Simulator, turn the Pressure Switch selector switch to L/R.
6. With the scan tool, monitor the L/R Pressure Switch State while pressing the Pressure Switch Test button.
  Did the Pressure Switch state change from open to closed when the test button was pressed?
  
  Yes
  - Go To 5.
  No
  - Go To 6.
CHECK THE SOLENOID SWITCH VALVE FOR STICKING
1. Remove the transmission oil pan and Valve body and inspect the Solenoid Switch Valve for sticking in its bore, repair or replace as necessary. Refer to VALVE BODY, REMOVAL .
  NOTE:
  This DTC may be caused by debris lodged in the Transmission Solenoid Switch Valve bore. If debris is found, clean the valve body and reassemble the transmission in accordance with the Service Information.
2. With the scan tool, record the Event Data for P1776 and erase DTCs.
3. Reassemble the transmission and test drive the vehicle. Try to duplicate the original set conditions using the Event Data recorded earlier.
4. With the scan tool, check Transmission DTCs.
  Did the DTC P1776 reset?
  
  Yes
  - Replace the Transmission Solenoid/TRS Assembly in accordance with the Service Information. Refer to ASSEMBLY, TRANSMISSION SOLENOID AND PRESSURE SWITCH, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the 62TE VERIFICATION TEST .
  No
  - Test Complete
  - Refer to STANDARD PROCEDURE and perform the 62TE VERIFICATION TEST .
CHECK THE (T50) L/R PRESSURE SIGNAL CIRCUIT FOR AN OPEN

Fig 1: Checking L/R Pressure Signal Circuit Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off to the lock position.
2. Disconnect the PCM C1 harness connector.
3. Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
4. Measure the resistance of the (T50) L/R Pressure Signal circuit between the appropriate terminal of the PCM C1 harness connector and the Transmission Solenoid/Pressure Switch Assembly harness connector.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (T50) L/R Pressure Signal circuit for an open.
  - Refer to STANDARD PROCEDURE and perform the 62TE VERIFICATION TEST .
  No
  - Go To 7.
CHECK THE (T50) L/R PRESSURE SIGNAL CIRCUIT FOR A SHORT TO GROUND

Fig 2: Checking L/R Pressure Signal Circuit Shorted To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (T50) L/R Pressure Signal circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (T50) L/R Pressure Signal circuit for a short to ground.
  - Refer to STANDARD PROCEDURE and perform the 62TE VERIFICATION TEST .
  No
  - Go To 8.
CHECK THE (T50) L/R PRESSURE SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE

Fig 3: Checking L/R Pressure Signal Circuit Shorted To Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Remove the PCM/TCM relay and with a fused jumper wire, jumper the Transmission Control Output to B(+).
2. Ignition on, engine not running.
3. Measure the voltage of the (T50) L/R Pressure Signal circuit.
  Is the voltage above 0.5 of a volt?
  
  Yes
  - Repair the (T50) L/R Pressure Signal circuit for a short to voltage.
  - Refer to STANDARD PROCEDURE and perform the 62TE VERIFICATION TEST .
  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. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL . With the scan tool, perform Quick Learn.
  - Refer to STANDARD PROCEDURE and perform the 62TE VERIFICATION TEST .
CHECK THE WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Test drive the vehicle and verify if the transmission is launching in 2nd gear and/or there is no TCC engagement.
3. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set.
4. Check for any Service Information Tune-ups or Service Bulletins for possible causes that may apply.
  Are there 2nd gear launches and/or no TCC engagement?
  
  Yes
  - Disassemble and inspect the Valve Body in accordance with the Service Information. Refer to VALVE BODY, DISASSEMBLY . Inspect the Solenoid Switch Valve for sticking in its bore and repair or replace as necessary.
  - Refer to STANDARD PROCEDURE and perform the 62TE VERIFICATION TEST .
  No
  - Test Complete.