Diagnostic Test

Always perform the AW60T Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  AW60T PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE   . 

1. CHECK IF DTC IS CURRENT 
   1. Using the scan tool, read TCM DTCs.
   2. Record the Environmental Data and any DTCs.
   3. Clear DTCs.
   4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
   5. Read TCM DTCs.
      NOTE:

      If there are any other Engine and/or Transmission DTCs, diagnosis those first.

      Did the DTC reset?

      Yes 

      • Go To  2

      No 

      • Go To  6
2. CHECK THE TORQUE CONVERTER CLUTCH (TCC) OPERATION 
   1. Clear Transmission DTCs.
   2. Road test the vehicle in a condition that will enable TCC lock up.
   3. Idle vehicle in Drive.
   4. Using the scan tool, note Torque Converter State.
   5. Using the scan tool, record engine rpm and input rpm and calculate the TCC slip rpm.
      NOTE:

      TCC slip rpm is the difference between engine rpm and input speed rpm.

      Is the TCC slip rpm less than 100 rpm, with TCC commanded off?

      Yes 

      • Go To  3

      No 

      • Using the schematics as a guide, check the Transmission Control Module (TCM) pins, terminals, and connectors 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 TCM in accordance with the Service Information. Refer to MODULE, TRANSMISSION CONTROL, REMOVAL .
      • Perform the AW60T VERIFICATION TEST. Refer to AW60T TRANSMISSION VERIFICATION TEST  .
3. CHECK THE L-UP LINEAR SOLENOID 
   Fig 1: Checking L-Up Linear Solenoid

   Courtesy of CHRYSLER GROUP, LLC
   1. Turn the ignition off to the lock position.
   2. Disconnect TCM harness connector and remove the TCM from the transmission.
   3. Measure the resistance of the L-Up Linear Solenoid between the appropriate terminals of the TCM transmission connector.

      Is the resistance 6.0 Ohms (± 0.20 of an Ohm)?

      Yes 

      • Go To  4

      No 

      • Replace the L-Up Linear Solenoid in accordance with the Service Information. Refer to VALVE BODY, REMOVAL .
      • Perform the AW60T VERIFICATION TEST. Refer to AW60T TRANSMISSION VERIFICATION TEST  .
4. CHECK THE L-UP LINEAR SOLENOID FOR A SHORT TO GROUND 
   Fig 2: Checking L-Up Linear Solenoid For A Short To Ground

   Courtesy of CHRYSLER GROUP, LLC
   1. Measure the resistance of the L-Up Linear Solenoid between ground the appropriate terminals of the TCM transmission connector.

      Is the resistance below 100k Ohms?

      Yes 

      • Remove the Transmission Side cover and inspect the internal harness for short to ground. If no short is found, replace the L-Up Linear Solenoid in accordance with the Service Information. Refer to VALVE BODY, REMOVAL .
      • Perform the AW60T VERIFICATION TEST. Refer to AW60T TRANSMISSION VERIFICATION TEST  .

      No 

      • Go To  5
5. CHECK INTERNAL TRANSMISSION 
   1. Turn the ignition off to the lock position.
   2. Remove the Transmission Side cover.
   3. Check the internal transmission harness, pins, terminals, and connectors for shorts, corrosion, damage, or terminal push out.
   4. Visually inspect the valve body for debris, damage or leaking hydraulic paths.
   5. Visually inspect for sticking or binding Control Valve(s).

      Were there any problems found?

      Yes 

      • Repair as necessary.
      • Perform the AW60T VERIFICATION TEST. Refer to AW60T TRANSMISSION VERIFICATION TEST  .

      No 

      • Replace the Torque Converter in accordance with the Service Information.
      • Perform the AW60T VERIFICATION TEST. Refer to AW60T TRANSMISSION VERIFICATION TEST  .
6. CHECK 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. Check for any Service Bulletins that may apply.

      Were there any problems found?

      Yes 

      • Repair as necessary.
      • Perform the AW60T VERIFICATION TEST. Refer to AW60T TRANSMISSION VERIFICATION TEST  .

      No 

      • Test Complete.