BCM / B2991 05

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

B2991 05

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Or

Car alarmed.

Fault criteria:

When voltage on output exceeds 10.2V.

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

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

See Reading:

Door Ajar Switch Right Front

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