U0114

Diagnostic trouble code information BCM-U011400

Condition

Note! The diagnostic trouble code only applies to vehicles equipped with AWD and DSTC.

The differential electronic module (DEM) informs the brake control module (BCM) when all wheel drive is active. During all wheel drive operation, the brake control module (BCM) should not activate the stability function due to the risk of disrupting the differential electronic module (DEM). Diagnostic trouble code BCM-U011400 is generated if the brake control module (BCM) registers that there is no signal from the differential electronic module (DEM) or if the signal indicates that all wheel drive is not operational.
The diagnostic trouble code can be diagnosed when the ignition is on.

Substitute value
- SC is blocked.
- TC is blocked (AWD TRACS is blocked even though no warning light is on).
- AYC is blocked.

Hint: For information on abbreviations: Brake system, abbreviations, B6324S5 Testing and Inspection

Possible source
- Fault-trace the Differential electronic module (DEM).

Fault symptom[s]
- General warning light on.
- Anti-spin is not operational.
- The stability function is not operational.
- The anti-skid function is not operational.