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P0571
P0571
Diagnosis information - DME V6 DFI Brake light switch
NOTE:
- Diagnosis checks the unambiguity of the states which are output via the brake light switch.This fault is set if the state [brake actuated] or [brake not actuated] is not unambiguously detected.
- The switches are located in the brake master cylinder.
- Evaluation takes place in the PSM control unit.
Diagnostic conditions
- Ignition on
- Battery positive voltage between 10 V and 16 V
Possible fault causes
- The fault is set in the PSM control unit; refer to this