Parking Heater Indicator Faulty

Read the instructions below then start the fault diagnostic procedure.

Symptom: The auxiliary heater indicator lamp is constantly lit or is never lit.

Parking Heater Indicator Faulty

Fault symptoms

The auxiliary heater indicator lamp is constantly lit or is never lit.

Diagnostic help

Before beginning this fault finding, check the diagnostic trouble codes in the SID. The lead between the main instrument unit (MIU) and the SID is faulty.

Read the about the function in the technical description.

Checking the wiring harness

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short-circuits in the leads. Observe the multimeter, test lamp or diagnostic tool during the test.