Diagnostic Test
- CHECK IF THE DTC IS ACTIVE
- CHECK THE (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT SHORT TO GROUND
- Turn the ignition off
- Disconnect the TIPM C2 harness connector.
- Disconnect the PCM C4 harness connector and install Miller tool #8815.
- Disconnect the Transmission Solenoid/Pressure Switch harness connector.
- Disconnect the Line Pressure Sensor/Variable Force Solenoid harness connector (if equipped).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.
- Measure the resistance between ground and the (T16) Transmission Control Output circuit.
Is the resistance below 5.0 ohms?
Yes
- Repair the (T16) Transmission Control Output 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 3
- TOTALLY INTEGRATED POWER MODULE
- Using the schematics as a guide, inspect the wire harness and connectors.
- Check the TIPM harness connector terminals for corrosion, damage, or terminal push out.
- Pay particular attention to all power and ground circuits.
Were any problems found?
Yes
- Repair as necessary.
- Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
No
- Replace the Totally Integrated Power Module per Service Information.
- Perform 42RLE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- INTERMITTENT WIRING AND CONNECTORS
- The conditions necessary to set this DTC are not present at this time.
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors.
- Look for the data to change or for the DTC to reset during the wiggle test.
Were 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.