Troubleshooting |
Ignition System |
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 |
Charging System |
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 | If light turns off, 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 | If light turns off, replace voltage regulator or alternator | |
Wiring | Repair or replace wiring | |
Overcharge | Electronic voltage regulator | If light turns off, 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 | If light turns off, replace voltage regulator or alternator | |
Poor grounding | Inspect ground or repair | |
Worn battery | Replace battery |
Starting System |
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 motor 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 motor faulty | Replace | |
Starter keeps running | Starter motor faulty | Replace |
Ignition switch | Replace | |
Starter spins but engine will not crank | Short in wiring | Repair or replace wiring |
Pinion gear teeth broken or starter motor | Replace | |
Ring gear teeth broken | Replace fly wheel or torque converter |
Hyundai Sonata LF 2014-2019 Service Manual: Gear Actuator Assembly Components and Components Location
Components
1. Gear actuator assembly2. Shift motor (Even)3. Shift motor (Odd)4. Select solenoid (Odd)5. Select solenoid (Even)
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Hyundai Sonata LF 2014-2019 Service Manual: Memory power seat unit Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the driver seat assembly.
(Refer to Body - "Front Seat Assembly")
3.
Loosening the IMS unit mounting screws.
4.
Disconnect the IMS module connectors (B) and then remove the IMS unit (A).
Installation
1.
Install ...