Symptom Chart

NOTE: Refer to Description and Operation, Intelligent Access (IA) with Push Button Start in ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) to review the procedures for achieving the various ignition states (ignition in accessory, ignition on, ignition start, ignition off) on vehicles with this feature.

SYMPTOM CHART

Condition	Possible Sources	Action
The cruise control is inoperative	Cruise control switches (part of the message center switch) Cruise control deactivator switch (integral to the stoplamp switch) Digital Transmission Range (TR) sensor Vehicle speed signal PCM Stoplamp switch Body Control Module (BCM) (with adaptive cruise control) Cruise-Control Module (C-CM) (with adaptive cruise control) ABS module (with adaptive cruise control) Steering Column Control Module (SCCM)	GO to PINPOINT TEST A .
The cruise control indicator lamp is never/always on	Wiring, terminals and connectors PCM IPC	REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
The cruise control switch is inoperative/does not operate correctly	Wiring, terminals and connectors Clockspring Cruise control switches (part of the message center switch) SCCM	GO to PINPOINT TEST C .
The adaptive cruise control indicator lamp is never/always on	Wiring, terminals and connectors PCM IPC	REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
The adaptive cruise control does not function in rain or snow conditions	C-CM Blockage or obstruction Front bumper cover	GO to PINPOINT TEST F .
Unexpected adaptive cruise control braking	C-CM Front bumper cover	The adaptive cruise control system can occasionally detect and respond to out-of-path vehicles, especially on curves, entry/exit ramps or when changing lanes. CHECK the C-CM and front bumper cover for damage. RETEST the adaptive cruise control system.
Lack of adaptive cruise control braking	C-CM Front bumper cover	The adaptive cruise control system may not detect and respond to vehicles carrying out close cut-ins or on tight curves (especially for vehicles on the passenger side) due to limited C-CM field of view. CHECK the CCM and front bumper cover for damage. If no damage is observed, RETEST the adaptive cruise control system.
Noise during adaptive cruise control braking	Low speeds Brake concern	The driver can detect some noise at low speeds when adaptive cruise control braking occurs. If braking noise continues, REFER to BRAKE SYSTEM - GENERAL INFORMATION to continue diagnosis of the ABS system.
The cruise control cannot set speed above 130 km/h (80 mph)	A MyKey® restricted key is in use and MyKey® max speed limiter is turned on	VERIFY if a MyKey® restricted key is in use. REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) . With an admin key, VERIFY if MyKey® max speed limiter is turned on. REFER to the Owner's Literature. If necessary, VERIFY cruise control normal operation with an admin key.