P0605

P0605 31

Control Module. Internal Fault







Fault symptom
- Messages shown in SID.
- TCM in Limp Home.

On-board diagnosis

Type of diagnosis:
- Diagnostics run each time control module "wakes".

Enable criteria:
- Ignition ON.

Fault criteria:
- Control module on-board diagnostics has detected a ROM error.

Checking the wiring harness
- Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help
- See "Before changing a control module" and "After fitting a control module" under Fault diagnosis, general.