SAAB WIS ONLINE

REC / B3878 02

Read the instructions below then start the fault diagnostic procedure.

Symptom: Brake light, faulty function. Message appears in display.

  B3878 02


Brake Light Right Circuit, Short to Ground

Fault symptom

Brake light, faulty function.

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Brake light is lit.

Fault criteria:

Current consumption greater than 6 A for more than 6 ms

System reaction to a fault:

Control module output is switched off.

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:

Activation:
Brake Light Left