Conditions for Setting the DTC
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
C025E 01
- A short to voltage is detected on the signal circuit.
- A short to voltage is detected on the 5 V reference circuit.
- A short to voltage is detected on the relay control circuit.
C025E 04
- A open/high resistance is detected on the vacuum sensor signal circuit.
- A open/high resistance is detected on the relay control circuit.
C025E 5A
The Electronic Brake Control Module detected an erratic Vacuum Sensor Signal that is not plausible.
C025E 71
The electronic brake control module receives an invalid serial data message from the engine control module.
C027B 01
The electronic brake control module receives an invalid serial data message from the engine control module.
C027B 04
The electronic brake control module receives an invalid serial data message from the engine control module.