Hyundai Accent (HC): Cruise Control System / Troubleshooting
Hyundai Accent (HC) (2017 - 2022) Service Manual / Engine Electrical System / Cruise Control System / Troubleshooting
Trouble Symptom 1
| 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 (although 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 |
Other information:
Hyundai Accent (HC) (2017 - 2022) Service Manual: Fuel Tank Pressure Sensor (FTPS)
- Description Fuel Tank Pressure Sensor (FTPS) is a component of the evaporative emission control system and is installed on the fuel tank, the fuel pump, or the canister. It checks the purge control solenoid valve operation and detects a leakage of the system. - Specification Pressure[kPa (kgf/cm², in H2O)]Output Voltage (V) -6.67 (-0.- Specifications Drive Pulley Speed Sensor ItemSpecification TypeHall sensor Output voltage (V)High : 1.18 - 1.68 (Nor : 1.4) Low : 0.59 - 0.84 (Nor : 0.7) Turbine Speed Sensor ItemSpecification TypeHall sensor Output voltage (V)High : 1.18 - 1.68 (Nor : 1.4) Low : 0.59 - 0.84 (Nor : 0.7) Oil Temperature Sensor ItemSpecification Type*NTC thermistor Temp.
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