Diagnostic Trouble Code (DTC) Information ECM-940F

Condition 

Fig 1: Identifying Brake Pedal Position Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that the brake pedal position sensor signal, sent via the CAN network from the brake control module (BCM) to the engine control module (ECM), is incorrect or that there is a fault in the CAN communication. The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute Value 

Cruise control switched off.

Possible Source 

• Fault trace the brake control module (BCM).

Fault symptom[s] 

• Cruise control does not function at all.