Daewoo KORANDO Service Manual page 565

1E3-4 OM600 ENGINE ELECTRICAL
Preheating system operation
1. Preheating before start.
Preheating time is different by coolant temperature and it is
on until the glow indicator light goes off.
2. Preheating after start.
Preheating continues for max. 60 seconds to rise in
characteristic of warming-up on engine after starting too.
3. Monitoring on glow plug.
Glow plugs are monitored by low current by the micro
processor in control relay respectively while running the
engine.
If glow indicator comes on after starting for about one minute,
it indicates on or several plugs are faulty.
Glow indicator does not come on in preheating
1
time and comes on after starting the engine.
Glow indicator does not come on while
2
preheating and after starting engine.
Glow indicator does not come on and engine's
3
starting is difficult or does not start at all.
Glow indicator comes on after starting for
4
about one minute.
Problem Possible cause
- One or several glow are faulty
- Faulty glow indicator
- Faulty circuit of glow indicator
- Faulty control relay
- Circuits short in one or several glow plugs
- Faulty preheating circuits
- Faulty control relay
- One or several glow plugs are faulty