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leroy5765 · Jan 3rd, 2018, 16:42

Hi All,

Happy New Year!

So i have a 2006 1.6d S40 its been a nightmare since owning it so now it wont start and the fault is a P138B Glow Plug Voltage.

Checked the wiring harness and it is only getting 2v for a split second then reduces to 0.08v for a short time before returning to zero.

Question: Should it be getting a higher voltage than that as i keep reading it should get battery voltage?

Question: Would this be a fault with the relay? i wanted to check opinion before taking the bumper off to replace the relay!

Any help or advice would be much appreciated!

Jan 3rd, 2018, 16:42	#1
leroy5765 New Member Last Online: Jan 4th, 2018 13:26 Join Date: Aug 2017 Location: Swansea	S40 Glow Plug Fault P138B Hi All, Happy New Year! So i have a 2006 1.6d S40 its been a nightmare since owning it so now it wont start and the fault is a P138B Glow Plug Voltage. Checked the wiring harness and it is only getting 2v for a split second then reduces to 0.08v for a short time before returning to zero. Question: Should it be getting a higher voltage than that as i keep reading it should get battery voltage? Question: Would this be a fault with the relay? i wanted to check opinion before taking the bumper off to replace the relay! Any help or advice would be much appreciated!