Diagnostic Test
- CHECK WIRING AND CONNECTORS FOR INTERMITTENT OPERATION
- 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.NOTE: Due to the integration of the Powertrain and Transmission Control Modules, the transmission part of the PCM has it's own specific power and ground circuits.
- Wiggle the wires while checking for shorted and open circuits.
- Check for any Service Bulletins that may apply.
Q:Were there any problems found?
Yes :
- Repair the power and/or ground circuits to the PCM and Transmission Control Relay as necessary.
- Perform TRANSMISSION VERIFICATION TEST - VER 1.
No :
- Replace the PCM per the Service Information. With the scan tool, perform QUICK LEARN.
- Perform TRANSMISSION VERIFICATION TEST - VER 1.
- 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.