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BCM / B2556 02

Read the instructions below then start the fault diagnostic procedure.

Symptom: Interior lighting malfunction.

  B2556 02


Interior Light. Short to Ground

Fault symptom

Interior lighting malfunction.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.
Interior lighting activated.

Fault criteria:

When current strength on the output exceeds 10A.

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:

Test value:
Interior Light Feed (not PWM).
Activate:
Interior Light Feed (not PWM).
(See also description of readings/activations in diagnostic tool)