Hyundai Sonata: 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 |
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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 |
Description and Operation
Cruise Control
The cruise control system is engaged by the cruise "ON/OFF" main switch
located on right of steering wheel column. The system has the capability to
cruise, coast, ac ...
Cruise Control Switch. Schematic Diagrams
Circuit Diagram
...
See also:
Brake Booster. Repair procedures
Brake Booster Operating Test
For simple checking of the brake booster operation, carry out the following
tests.
1.
Run the engine for one or two minutes, and then stop ...
Resetting the sunroof
Whenever the vehicle battery is disconnected or discharged, or related fuse is
open, you must reset your sunroof system as follows:
1.Turn the ignition switch to the ON position and close the sunro ...
If the engine will not start
If engine doesn't turn over or turns over slowly
1. If your vehicle has an automatic transaxle, be sure the shift lever is in
N (Neutral) or P (Park) and the emergency brake is set.
2. Check t ...