Trouble Symptom Charts
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
|
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
|
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
|
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
|
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
|
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
|
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
|
System Block Diagram
Component Parts And Function Outline
Component part
Function
Vehicle-speed sensor
Converts vehicle speed to pulse.
...
Hyundai Elantra MD/UD: Troubleshooting
