Diagnostic Test

CHECK IF THE 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.
  Did the DTC reset?
  
  Yes
  - Go To 2
  No
  - Go To 9
CHECK THE PRESSURE CONTROL SOLENOID D
1. Turn the Ignition OFF.
2. Disconnect the Transmission Assembly harness connector.
3. Measure the resistance of the Pressure Control Solenoid D at the appropriate terminals in the Transmission Assembly interface connector.
  Is the resistance of the Pressure Control Solenoid D 5.4 Ohms ± 0.5 Ohms?
  
  Yes
  - Go To 3
  No
  - Replace the Pressure Control Solenoid D in accordance with the service information.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (T118) SOLENOID SUPPLY 2 CIRCUIT FOR AN OPEN
1. Disconnect the TCM harness connector.
2. Measure the resistance of the (T118) Solenoid Supply 2 circuit between the Transmission Assembly harness connector and the TCM harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the (T118) Solenoid Supply 2 circuit for an open or high resistance.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (T118) SOLENOID SUPPLY 2 CIRCUIT FOR A SHORT TO GROUND
1. Measure the resistance between ground and the (T118) Solenoid Supply 2 circuit.
  Is there continuity between ground and the (T118) Solenoid Supply 2 circuit?
  
  Yes
  - Repair the (T118) Solenoid Supply 2 circuit for a short to ground.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 5
CHECK THE (T118) SOLENOID SUPPLY 2 CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT
1. Measure the resistance between the (T118) Solenoid Supply 2 circuit and all other circuits in the TCM harness connector.
  Is there continuity between the (T118) Solenoid Supply 2 circuit and any other circuits in the TCM harness connector?
  
  Yes
  - Repair the (T118) Solenoid Supply 2 circuit for a short to another circuit.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 6.
CHECK THE (T818) PRESSURE CONTROL SOLENOID D CIRCUIT FOR AN OPEN
1. Measure the resistance of the (T818) Pressure Control Solenoid D circuit between the Transmission Assembly harness connector and the TCM harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 7
  No
  - Repair the (T818) Pressure Control Solenoid D circuit for an open or high resistance.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (T818) PRESSURE CONTROL SOLENOID D CIRCUIT FOR A SHORT TO GROUND
1. Measure the resistance between ground and the (T818) Pressure Control Solenoid D circuit.
  Is there continuity between ground and the (T818) Pressure Control Solenoid D circuit?
  
  Yes
  - Repair the (T818) Pressure Control Solenoid D circuit for a short to ground.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 8.
CHECK THE (T818) PRESSURE CONTROL SOLENOID D CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT
1. Measure the resistance between the (T818) Pressure Control Solenoid D circuit and all other circuits in the TCM harness connector.
  Is there continuity between the (T818) Pressure Control Solenoid D circuit and any other circuits in the TCM harness connector?
  
  Yes
  - Repair the (T818) Pressure Control Solenoid D circuit for a short to another circuit.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  
  NOTE:
  If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to align the PROXI configuration data into the new ECU. Follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under Body Control Module (BCM) Miscellaneous Functions menu.
  - Using the schematics as a guide, check the Transmission Control Module (TCM) terminals and connectors for corrosion, damage or pushed out terminals. Pay particular attention to the power and ground circuits. If no problems are found, replace the TCM and perform programming and PROXI Configuration Alignment procedures. Refer to MODULE, TRANSMISSION CONTROL, REMOVAL .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Use the Freeze Frame Data to help duplicate the conditions in which the DTC originally set. Pay particular attention to the DTC set conditions, such as, VSS, MAP, ECT, and Load.
3. Using the schematics as a guide, visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
4. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
5. Wiggle the wiring and connectors while checking for any possible open or shorted circuits.
6. Check for any Service Information Tune-ups or Technical Service Bulletins that may apply.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test Complete.