B2157

Read the instructions below then start the fault diagnostic procedure.

Symptom: The motor for the seat front cannot be operated either manually or via the memory settings.

B2157

Fault symptoms

The motor for the seat front cannot be operated either manually or via the memory settings.

Conditions

The voltage at the output of the relay that supplies the power to B+ is less than 6.9V.

Diagnostic help

The probable cause is that the motor is faulty or there is a short-circuit between the motor connections.