Kia Picanto JA: Engine Electrical System / Ignition System
Description and operation
Ignition timing is controlled by the electronic control ignition timing system.
The
standard reference ignition timing data for the engine operating
conditions are pre-programmed in the memory of the ECM (Engine Control
Module).
The
engine operating conditions (speed, load, warm-up condition, etc.) are
detected by various sensors. Based on these sensor signals and the
ignition timing data, signals to interrupt the primary current are sent
to the ECM.
The ignition coil is activated, and timing is controlled.
Repair procedures
| Inspect ignition coil assembly and Perform spark test |
| 1. | Check for DTCs. | •
| If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC. (Refer to DTC guide) |
|
|
| 2. | Check for sparks. | (1) | Remove the engine cover. |
| (2) | Remove the cylinder head center cover. |
| (3) | Remove the ignition coils. |
| (4) | Using a spark plug wrench, remove the spark plugs. |
| (5) | Disconnect the 3 injector connectors. |
| (6) | Ground the spark plug to the engine.
 |
| (7) | Check for sparks at each spark plug while the engine is being cranked. |
| •
| Do not crank the engine for more than 5 seconds. |
|
|
| 3. | If sparks do not occur, perform the following test.
 |
| 4. | Using a spark plug wrench, install spark plugs. |
| 5. | Install the ignition coils. |
| 6. | Install the cylinder head center cover and the engine cover. |
Troubleshooting
Symptom
|
Suspected 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 stalling
| Ignition wiring
| Repair wiring, or replace as required
|
Ignition coil
| Inspect ignition coil, or replace as required
|
Engine hesitation/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
|
Description and operation
Description
Vehicles
have many control units that consume electricity. Each unit controls
its own system based on information from various sensors...
Description and operation
Description
An
ignition coil is an induction coil in an engine's ignition system which
transforms the battery's low voltage to the high voltage needed to
create an electric spark in the spark plugs to ignite the fuel...
Other information:
Mechanical key
Turn the key toward the rear of the
vehicle to lock and toward the front
of the vehicle to unlock.
If you lock/unlock the door with a
key, the doors will lock/unlock.
If you lock/unlock the driver’s door
with a key, all vehicle doors will lock/
unlock automatically...
Description and operation
Description
An
ignition coil is an induction coil in an engine's ignition system which
transforms the battery's low voltage to the high voltage needed to
create an electric spark in the spark plugs to ignite the fuel...
Battery Sensor
Ignition Coil