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

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

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