Hyundai Sonata: Troubleshooting
Trouble Shooting
Symptom |
Suspect area |
Remedy |
Engine will not start or is hard to start (Cranks OK) |
Ignition lock switch |
Inspect ignition lock switch, or replace as required |
Ignition coil |
Inspect ignition coil, or replace as required |
|
Spark plugs |
Inspect spark plugs, or replace as required |
|
Ignition wiring disconnected or broken |
Repair wiring, or replace as required |
|
Rough idle or stalls |
Ignition wiring |
Repair wiring, or replace as required |
Ignition coil |
Inspect ignition coil, or replace as required |
|
Engine hesitates/poor acceleration |
Spark plugs and spark plug cables |
Inspect spark plugs / cable, or replace as required |
Ignition wiring |
Repair wiring, or replace as required |
|
Poor mileage |
Spark plugs and spark plug cables |
Inspect spark plugs / cable, or replace as required |
Symptom |
Suspect area |
Remedy |
Charging warning indicator does not light with ignition switch "ON"
and engine off. |
Fuse blown |
Check fuses |
Light burned out |
Replace light |
|
Wiring connection loose |
Tighten loose connection |
|
Electronic voltage regulator |
Replace voltage regulator |
|
Charging warning indicator does not go out with engine running. (Battery
requires frequent recharging) |
Drive belt loose or worn |
Adjust belt tension or replace belt |
Battery cable loose, corroded or worn |
Inspect cable connection, repair or replace cable |
|
Electronic voltage regulator or alternator |
Replace voltage regulator or alternator |
|
Wiring |
Repair or replace wiring |
|
Overcharge |
Electronic voltage regulator |
Replace voltage regulator |
Voltage sensing wire |
Repair or replace wiring |
|
Discharge |
Drive belt loose or worn |
Adjust belt tension or replace belt |
Wiring connection loose or short circuit |
Inspect wiring connection, repair or replace wiring |
|
Electronic voltage regulator or alternator |
Replace voltage regulator or alternator |
|
Poor grounding |
Inspect ground or repair |
|
Worn battery |
Replace battery |
Symptom |
Suspect area |
Remedy |
Engine will not crank |
Battery charge low |
Charge or replace battery |
Battery cables loose, corroded or worn out |
Repair or replace cables |
|
Transaxle range switch (Vehicle with automatic transaxle only) |
Refer to AT group-automatic transaxle |
|
Fuse blown |
Replace fuse |
|
Starter faulty |
Replace |
|
Ignition switch faulty |
Replace |
|
Engine cranks slowly |
Battery charge low |
Charge or replace battery |
Battery cables loose, corroded or worn out |
Repair or replace cables |
|
Starter faulty |
Replace |
|
Starter keeps running |
Starter |
Replace |
Ignition switch |
Replace |
|
Starter spins but engine will not crank |
Short in wiring |
Repair wiring |
Pinion gear teeth broken or Starter |
Replace |
|
Ring gear teeth broken |
Replace fly wheel or torque converter |
Specifications
Specifications Ignition System Items Specifications Ignition coil Primary resistance 0.62 В± 10 % (Ω) Secondary ...Special Service Tools
Special Service Tools Tool (Number and name) Illustration Use Alternator pulley remover wrench (09373-27000) Remova ...See also:
Parking brake
Applying the parking brake
Foot type
To engage the parking brake, first apply the foot brake and then depress the
parking brake pedal down as far as possible.
Hand type
To engage the par ...
Manual Transaxle. Components and Components Location
Components
1. Transaxle case
2. Taper roller bearing outer race
3. 1st/2nd shift fork
4. Reverse shift fork
5. Shift rail
6. 3rd/4th shift fork
7. 5th/6th ...
Body Control Module (BCM). Schematic Diagrams
BCM Connector Terminals
BCM Input Signal SPEC
No
Input signal name
Logic state
ON/OFF voltage
recognition level (V)
Remarks
...