Hyundai Palisade (LX2): Cruise Control System (CC) / 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 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 |
System Block Diagram Component Parts And Function Outline Component part Function Vehicle-speed sensor, ESP/ABS Control Module Converts vehicle speed to pulse.
Components and components location Components 1. Remote control switch (Audio swtich) 2. Remote control switch (Cruise control switch) Schematic diagrams Circuit Diagram Repair procedures Removal 1.
Other information:
Hyundai Palisade (LX2) 2020-2025 Service Manual: Repair procedures
Inspection 1. Turn the ignition switch ON. 2. Manually operate the control switch and measure the voltage of the blower motor. 3. Select the control switch to raise the voltage until it reaches high speed.
Hyundai Palisade (LX2) 2020-2025 Service Manual: Troubleshooting
Troubleshooting 1) After replacing H/UNIT, always check that the system operates properly. 2) If the failure persists after replacing the H/UNIT, do not replace the unit.
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