Electronic control unit - Unswitchable to off
â–¶ How to fix
Apply parking brake, disconnect X1.1 connector and wait at least 1 minute. Check whether the hand control light is out. If not, replace EPB. If the test is successful and the light is out, check other ECUs on the CAN bus
What you'll see
No driver-visible symptom recorded.
System reaction
No restrictions. Yellow warning lamp.
Diagnostic depth
Detection
Various internal monitoring functions.
Possible cause
Hardware error of the ECU or erroneous ECU on CAN bus.