DTC P0B91 Cadillac
VEHICLE SPEED
VEHICLE SPEED
Description
If DTC B2557 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. If DTC B2557 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. BCM detects the following difference between the vehicle speed from unified meter and the one from ABS actuator and electric unit for 10 seconds continuously: One is 10km h or more and the other is 4km h or less.
Cause and Solution
Harness or connectors (The CAN communication line is open or shorted. ) Combination meter ABS actuator and electric unit (control unit)
Video Guide
Diagnostic Info
- DTC Code: P0B91
- Brand: Cadillac