Hi I have a 2002 defender td5 I have a on going problem with battery going flat, I have narrowed it down to the glow plug relay, it all works fine turns on before starting and goes of when started but when I turn of engine sometimes the relay will operate and stay on this can happen anytime from 5 minutes to a hour after engine is turned off until battery flat, sometimes will not happen at all. Any advice
Td5 battery drain through glow plugs
- Thread starter Paulandy
- Start date
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adrian hogg
Well-Known Member
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hi the glowplug relay is switched on by the ECU providing an earth. I would check the wire from relay to ecu first as it could be shorting out somewhere
+1 for @adrian hogg
ECU controls the neg feed for the Glow plug relay check for shorts (or partial shorts) to earth of that wire / circuit
ECU controls the neg feed for the Glow plug relay check for shorts (or partial shorts) to earth of that wire / circuit
Scooby22
Well-Known Member
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Until you find and sort the problem I would pull the relay, I have never needed to use the glowplugs on my TD5, just turn the key and starts first time.
ONE LIFE LIVE IT. D90
Active Member
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That could be why my glow plug relay is removed from my td5 too then. Sounds like it could be common.
Does the light on the dash still illuminate without the relay?
Does the light on the dash still illuminate without the relay?
