Diagnostic trouble code (DTC) information

Condition 

If the engine control module (ECM), with engine running, registers a malfunction on the brake pedal sensor's circuit, the brake light switch circuit, or on the CAN-communication between the brake control module (BCM) and the engine control module (ECM), the diagnostic trouble code is generated.

Substitute Value 

Cruise control switched off.

Possible Source 

Signal too high: 

• Look for the cause of the malfunction in the brake control module (BCM) and in the central electronic module (CEM).

Incorrect signal: 

• Malfunction in brake control module (BCM) or in central electronic module (CEM).
• Contact resistance or oxidation in the connections between the engine control module (ECM) and the brake light switch.
• Open circuit in the voltage feed to the brake light switch.
• Open circuit or short-circuit to ground or voltage in the cable for the brake light switch.
• Incorrectly installed brake light switch.
• Incorrectly adjusted brake light switch.
• Water in the connectors.
• Damaged brake light switch.

Signal missing: 

• Look for the cause of the malfunction in the brake control module (BCM) and in the central electronic module (CEM).

Fault symptom[s] 

• Cruise control does not function at all.
• Brake light constantly on.
• Message in information display