SCM / P0231 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE

P0231 00

Fault symptom

CHECK ENGINE

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

Control module output short-circuit to ground.

System reaction to a fault:

SCM requests CHECK ENGINE lamp lit by ECM.

Checking the wiring harness

Jiggle the wiring harness at several points to detect intermittent breaks or short circuits. Check also the connector for oxidation or loose pins.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:

Fuel Pump Control Signal

Activation:

Fuel Pump Control Signal

(See also description of readings/activations in diagnostic tool)