EDC16 / P0400 01

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE lamp on.

P0400 01

Fault symptom

CHECK ENGINE lamp on.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

Control module on-board diagnostics has detected an internal fault.

System reaction to a fault:

EGR turned off in case of fault.

Checking the wiring harness

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

Diagnostic help

Diagnosis regards:

To locate electrical faults in the control module internal electronics.

Functions in the diagnostic tool related to the fault:

See menu "All - Add/Remove"