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.