DTC U2108: Adaptive Cruise Control

Failure	Action
00	In order to detect errors in the CCM, the cruise control system is momentarily shut off during a driver braking event. This DTC sets when the ABS module detects cruise control system activation during a driver braking event. This is most likely caused by a network communication concern or an internal failure of the CCM. RETRIEVE and REPAIR all DTCs in the CCM. REFER to the CRUISE CONTROL SYSTEM or CRUISE CONTROL SYSTEM - VEHICLES WITH ADAPTIVE CRUISE CONTROL . If no DTCs set in the CCM, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all CCM electrical connectors and related in-line electrical connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary.
68	The ABS module monitors vehicle deceleration during adaptive cruise control braking events to prevent an over-braking situation. This DTC sets when vehicle deceleration is greater than 3.2 meters per second 2. This is most likely caused by an abrupt stop of the vehicle due to a collision, an extreme driving situation, a mechanical or electrical failure of the adaptive cruise control system or an internal failure of the ABS module. RETRIEVE and REPAIR all other ABS module DTCs before diagnosing DTC U2108:68. If no other ABS module DTCs are present, RETRIEVE and REPAIR all DTCs in the CCM. REFER to the CRUISE CONTROL SYSTEM or CRUISE CONTROL SYSTEM - VEHICLES WITH ADAPTIVE CRUISE CONTROL . If there are no DTCs in the CCM, INSPECT the vehicle braking system for a dragging condition or another condition that may cause rapid vehicle deceleration.

Failure

Action

In order to detect errors in the CCM, the cruise control system is momentarily shut off during a driver braking event. This DTC sets when the ABS module detects cruise control system activation during a driver braking event. This is most likely caused by a network communication concern or an internal failure of the CCM. RETRIEVE and REPAIR all DTCs in the CCM. REFER to the CRUISE CONTROL SYSTEM or CRUISE CONTROL SYSTEM - VEHICLES WITH ADAPTIVE CRUISE CONTROL . If no DTCs set in the CCM, the DTC may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all CCM electrical connectors and related in-line electrical connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary.

The ABS module monitors vehicle deceleration during adaptive cruise control braking events to prevent an over-braking situation. This DTC sets when vehicle deceleration is greater than 3.2 meters per second 2. This is most likely caused by an abrupt stop of the vehicle due to a collision, an extreme driving situation, a mechanical or electrical failure of the adaptive cruise control system or an internal failure of the ABS module. RETRIEVE and REPAIR all other ABS module DTCs before diagnosing DTC U2108:68. If no other ABS module DTCs are present, RETRIEVE and REPAIR all DTCs in the CCM. REFER to the CRUISE CONTROL SYSTEM or CRUISE CONTROL SYSTEM - VEHICLES WITH ADAPTIVE CRUISE CONTROL . If there are no DTCs in the CCM, INSPECT the vehicle braking system for a dragging condition or another condition that may cause rapid vehicle deceleration.