VERACRUZ(EN) >2010 > G 3.8 DOHC > Engine Electrical System > Cruise Control System>Troubleshooting  
Trouble Symptom Charts
Trouble Symptom 1

Trouble Symptom 2
Trouble symptom
Probable cause
Remedy
The set vehicle speed varies greatly
upward or downward
"Surging" (repeated alternating
acceleration and deceleration)
occurs after setting
Malfunction of the vehicle speed
sensor circuit
Repair the vehicle speed sensor
system, or replace the part
Malfunction of PCM
Check input and output signals at PCM

Trouble Symptom 3
Trouble symptom
Probable cause
Remedy
The CC system is not canceled when
the brake pedal is depressed
Damaged or disconnected wiring of
the brake pedal switch
Repair the harness or replace the
brake pedal switch
Malfunction of the PCM signals
Check input and output signals at PCM

Trouble Symptom 4
Trouble symptom
Probable cause
Remedy
The CC system is not canceled when
the shift lever is moved to the "N"
position (It is canceled, however, when the brake pedal is depressed
Damaged or disconnected wiring of
inhibitor switch input circuit
Repair the harness or repair or replace the inhibitor switch
Improper adjustment of inhibitor switch
Malfunction of the PCM signals
Check input and output signals at PCM

Trouble Symptom 5
Trouble symptom
Probable cause
Remedy
Cannot decelerate (coast) by using the SET switch
Temporary damaged or disconnected wiring of SET switch input circuit
Repair the harness or replace the SET switch
Malfunction of the PCM signals
Check input and output signals at PCM

Trouble Symptom 6
Trouble symptom
Probable cause
Remedy
Cannot accelerate or resume speed by using the RESUME switch
Damaged or disconnected wiring, or
short circuit, or RESUME switch input circuit
Repair the harness or replace the
RESUME switch
Malfunction of the PCM signals
Check input and output signals at PCM

Trouble Symptom 7
Trouble symptom
Probable cause
Remedy
CC system can be set while driving at a vehicle speed of less than 40km/h
(25mph), or there is no automatic
cancellation at that speed
Malfunction of the vehicle-speed
sensor circuit
Repair the vehicle speed sensor
system, or replace the part
Malfunction of the PCM signals
Check input and output signals at PCM

Trouble Symptom 8
Trouble symptom
Probable cause
Remedy
The cruise main switch indicator lamp does not illuminate (But CC system is normal)
Damaged or disconnected bulb of
cruise main switch indicator lamp
Repair the harness or replace the part.
Harness damaged or disconnected