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