L322 battery drain. Diagnostics says its glow plug relay has a short.

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Richardq

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Finally trying to get back into Landy ownership and enjoyment (lol) after a long (nissan) absence. I have a 2005 diesel l322 that battery goes flat overnight. My crappy topdon code reader says the glow plug relay has a short. Just need help identify it and checking if it is indeed faulty.
Am I right that the module in the 3rd pic is the glow plug relay?
 

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An easy way to check, put a multi meter onto a glow plug +lead and with the engine cold turn the key. You should see 12v at the glow plug, if not the relay may have failed or if you can identify one of the leads on the relay as the feed for the plugs you can do it at that point. They are known to fail👍
Edit, it's the large red wire you should have 12v at when the ignition is turned on with a cold engine 😉
 
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