- Turn the ignition switch ON.
Does the charge lamp come ON?
YES – Go to step 5.
NO – Go to step 2.
- Disconnect the alternator connector.
- Connect the alternator connector (Chassis harness side) terminal L and body ground with a jumper wire.
- Check the charge lamp circuit for an open.
Does the charge lamp come ON?
YES – Replace the rear cover. 
NO – Repair as necessary. (Replace the charge lamp bulb or repair the wire for an open.)
- Start the engine at idle speed.
Does the charge lamp go OFF?
YES – Go to step 7.
NO – Go to step 6.
- Check the fan belt and tension.
Is a problem found?
YES – Repair as necessary.
NO – Check for poor connections or loose wires at the L terminal and battery terminal.
- Stabilise the engine speed at 1500 rpm.
- Measure the battery voltage.
Is the battery voltage more than 15.5 V?
YES – Replace the rear cover.
NO – Go to step 9.
- Measure the battery voltage.
Is the battery voltage within 12.5 to 15.0 V?
YES – Replace the rear cover.
NO – Go to step 10.
- Turn the head lamp switch ON at the engine idling.
Does the charge lamp come ON?
YES – Replace the rear cover.
NO – Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the alternator connector.