DTC P1891 BMW
TCC Power Supply Upper Threshold
TCC Power Supply Upper Threshold
Description
Engine started to 400rpm, FET enabled, vehicle driven in gear with VSS signals received, and the DME detected a the battery voltage was greater than the threshold value (greater than 16 volts) while in normal operation.
Cause and Solution
TCC solenoid has a mechanical failure
Video Guide
Diagnostic Info
- DTC Code: P1891
- Brand: BMW