Symptoms - Engine Electrical

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

No Crank

Checks	Actions
Low battery voltage	Charging the battery or replace the battery.
Battery cable is loose, corroded or damaged.	Repair or replace the battery cable.
Faulty starter motor or starter motor circuit is open.	Repair or replace the starter motor/starter motor circuit.
Faulty ignition switch or fuse Ef2 is blown.	Replace the ignition switch or fuse Ef2.
Ground short	Repair the ground short.

Crank OK, But Too Slow

Checks	Actions
Low battery voltage	Charging the battery or replace the battery.
Battery Battery cables is loose, corroded or damaged.	Repair or replace the battery cable.
Faulty starter motor	Repair or replace the starter motor.

Starter Motor Does Not Stop

Checks	Actions
Faulty starter motor	Repair or replace the starter motor.
Faulty ignition switch	Replace the ignition switch.

Starter Motor Running, But Not Cranking

Checks	Actions
Broken clutch pinion gear or faulty starter motor	Replace the starter motor.
Broken flywheel ring gear	Replace the flywheel.
Connected circuit is open.	Repair the open circuit.

Overcharging Battery

Checks	Actions
Faulty IC regulator	Replace the IC regulator.

Battery Discharge

Checks	Actions
Loosen the generator drive belt.	Adjust the belt tension or replace the belt.
The circuit is open or shorted.	Repair the open or shorted circuit.
Faulty IC regulator	Replace the IC regulator.
Battery run down	Replace the battery.
Open ground circuit	Repair the open ground circuit.

Charging Indicator Lamp Does Not Work When the Ignition Switch is ON - Engine Does Not Work

Checks	Actions
Fault IC regulator	Replace the IC regulator.
Charging indicator lamp is blown or fuse F8 is blown.	Repair or replace the charging indicator lamp/fuse F8.
Faulty ignition switch	Replace the ignition switch.
Generator ground circuit is open or shorted.	Repair the circuit.

Charging Indicator Lamp Does Not Put Out Lights After Starting the Engine

Checks	Actions
Faulty IC regulator	Replace the IC regulator.
Battery cable is corroded or damaged.	Repair or replace the battery cable.
Loosen the generator drive belt.	Adjust the belt tension or replace the belt.
Faulty wiring harness	Repair the wiring harness.

Hard to Start the Engine

Checks	Actions
Faulty ignition coil	Replace the ignition coil.
Faulty distributor, include the optical sensor	Replace the distributor or the optical sensor.
Faulty spark plug	Replace the spark plug or adjust the gap.
Poor ignition timing	Reset the valve timing.

Engine Idling State is Unstable

Checks	Actions
Faulty spark plug	Replace the spark plug or adjust the gap.
Faulty ignition coil	Replace the ignition coil.
Poor ignition timing	Reset the valve timing.

Poor Engine Accelerating

Checks	Actions
Poor ignition timing	Reset the valve timing.