Symptom Chart: Cruise Control

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to DIAGNOSTIC METHODS for information regarding Ford-specific diagnostic practices.

SYMPTOM CHART - CRUISE CONTROL

Condition	Possible Sources	Actions
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 Powertrain Control Module (PCM) Stoplamp switch Steering Column Control Module (SCCM)	REFER to DIAGNOSTIC ROUTINE A .
The cruise control indicator lamp is never on	Wiring, terminals and connectors Powertrain Control Module (PCM) Instrument Panel Cluster (IPC)	REFER to DIAGNOSTIC ROUTINE X .
The cruise control switch is inoperative/does not operate correctly	Wiring, terminals and connectors Clockspring Cruise control switches (part of the message center switch) Steering Column Control Module (SCCM)	REFER to DIAGNOSTIC ROUTINE C .
The adaptive cruise control indicator lamp is never on	Wiring, terminals and connectors Clockspring Cruise control switches (part of the message center switch) Steering Column Control Module (SCCM)	REFER to DIAGNOSTIC ROUTINE X .
The adaptive cruise control does not function in rain or snow conditions	Cruise-Control Module (C-CM) Blockage or obstruction Front bumper cover	REFER to DIAGNOSTIC ROUTINE F .
"ADAPTIVE CRUISE NOT AVAILABLE SENSOR BLOCKED" message in the Instrument Panel Cluster (IPC) message center	Cruise-Control Module (C-CM) Blockage or obstruction Front bumper cover	REFER to DIAGNOSTIC ROUTINE F .
Unexpected adaptive cruise control braking	Cruise-Control Module (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 Cruise-Control Module (C-CM) and front bumper cover for damage. RETEST the adaptive cruise control system.
Lack of adaptive cruise control braking	Cruise-Control Module (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 Cruise-Control Module (C-CM) field of view. CHECK the Cruise-Control Module (C-CM) and front bumper cover for damage. If no damage is observed, RETEST the adaptive cruise control system.
Noise during adaptive cruise control braking	Normal operation	The driver can detect some noise at low speeds when adaptive cruise control braking occurs. This is normal operation. No repair is necessary.
The cruise control cannot set speed above 128.7 kmh (80 mph)	A MyKey® restricted key is in use and MyKey® max speed limiter is turned on	VERIFY whether a MyKey® restricted key is in use. With an admin key, VERIFY if MyKey® max speed limiter is turned on. REFER to the owner's manual. If necessary, VERIFY cruise control normal operation with an admin key. REFER to the owner's manual.