RDCM / C0402 4B
Read the instructions below then
start the fault diagnostic procedure.
Control Module. Internal Fault

On-board diagnosis
Type of diagnosis:
| Diagnostics carried out when the control module is active. |
Enable criteria:
Fault criteria:
| Solenoid valve not calibrated |
System reaction to a fault:
| Rear wheel drive shut down |
Checking the wiring harness
See "Before changing a control module" and "After fitting a control module" under Fault diagnosis, general.
Diagnostic help
Functions in the diagnostic tool related to the fault:
| See menu "All - Add/Remove" |