Before starting troubleshooting, inspect each of the following sections, and if there is an abnormality, carry out a repair.
Check that the actuator and pulley assembly are all normal.
Check if the pulley assembly and the movement of cables are working smoothly.
Check if there is no excessive play or tension in each cable.
First, select the applicable malfunction symptom from the "TROUBLE SYMPTOM CHARTS" shown on next pages.
Determine the condition of all function circuits.
Make the following preliminary inspections.
Check that the installation of the actuator, accelerator cable are correct, and that the cables and links are securely connected.
Check that the accelerator pedal moves smoothly.
Adjust the cable so there is not excessive tension or excessive play on the accelerator cable.
Check that the actuator and unit assembly, cruise main, control switch and the connector of each cancel switch are connected securely.
Check in the sequence indicated in the "TROUBLE SYMPTOM CHARTS".
If a normal condition is indicated, replace the cruise control module.
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 the speedometer cable or speedometer drive gear | ||
Malfunction of the actuator and unit | Replace the actuator and unit |
Trouble symptom | Probable cause | Remedy |
The CC system is not canceled when the brake pedal is deprssed | Damaged or disconnected wiring of the stop lamp switch | Repair the harness or replace the stop lamp switch |
Malfunction of the actuator and unit | Replace the actuator and unit |
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 ingibitor switch |
Improper adjustment of inhibitor switch | ||
Malfunction of the actuator and unit | Replace the actuator and unit |
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 |
Actuator circuit poor contact | Repair the harness or replace the actuator | |
Malfunction of the actuator | ||
Malfunction of the actuator and unit | Replace the actuator and unit |
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 RESUME switch |
Actuator circuit poor contact | Repair the harness or replace the actuator | |
Malfunction of the actuator | ||
Malfunction of the actuator and unit | Replace the actuator and unit |
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 speedometer cable or the speedometer drive gear | ||
Malfunction of the actuator and unit | Replace the actuator and unit |
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 |
Trouble symptom | Probable cause | Remedy |
Malfunction of control function by ON/OFF switching of idle switch | Malfunction of circuit related to idle switch function | Repair the narness or replace the part |
Malfunction of the actuator and unit |
Trouble symptom | Probable cause | Remedy |
Overdrive is not canceled during fixed speed driving | Malfunction of circuit related to overdrive cancellation, or malfunction of actuator and unit | Repair the harness or replace the part |
No shift to overdrive during manual driving |
