P2162

Diagnostic trouble code (DTC) information ECM-P216262

Condition
Information about vehicle speed is sent on the CAN-network from brake control module (BCM) and from transmission control module (TCM) to engine control module (ECM). If engine control module (ECM) detects a deviation between the speed signals from brake control module (BCM) and transmission control module (TCM), the diagnostic trouble code is stored.

Hint: If Engine control module (ECM) has been recharged or if the battery voltage has been interrupted, the brake pedal must be pressed down twice for approx. two seconds to activate the cruise control function.

Substitute value
- Cruise control shuts off.

Possible source
- Incorrect speed signal to brake control module (BCM).
Look for the cause of the malfunction in the brake control module (BCM).
- Incorrect speed signal to transmission control module (TCM).
Look for the cause of the malfunction in the transmission control module (TCM).
- Contact resistance in CAN-connections.
- Open circuit on one or both CAN-cables.
- Damaged Brake Control Module (BCM).
- Damaged transmission control module (TCM).

Fault symptom[s]
- The cruise control does not function at all
- Message in the display.