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mastertech

Member Since: 19 Jan 2017
Location: manchester
Posts: 5

temp gauge loss of power

hi guys
I have a 2008 defender 90 puma
every now and again temp gauge and battery light comes on and there is a loss of power when fault is there it starts and runs
with sdd ive re configured and a software update
still faults
has anyone had this or knows a fix ??

19th Jan 2017 7:30pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Engine wiring loom chaffing on metal engine block

Last edited by dorsetsmith on 19th Jan 2017 8:10pm. Edited 1 time in total

19th Jan 2017 7:37pm

agentmulder

Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

Assume the chaffing is upstream of the coolant temp sensor?

(which is where?) Solved the bowel problem, working on the consonants...

19th Jan 2017 7:50pm

mastertech

Member Since: 19 Jan 2017
Location: manchester
Posts: 5

dorsetsmith wrote:
Engine wiring loom chaffing on metal engine block

It's not a coolant sensor fault in sdd it's saying loss of can , engine relay and incompatible software

19th Jan 2017 9:05pm

agentmulder

Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

Please ignore if you know better but it was my understanding that DTC faults cant be guaranteed to be accurate. If a system is faulty the fault codes can be just as spurious as the symptoms..

Of course, even when they're wrong, they can provide helpful hints (as often as they give you red herrings). Solved the bowel problem, working on the consonants...

19th Jan 2017 9:10pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

coolant sensor is wired ECM

controller area network between ecm to instrument cluster

battery light wired to instrument cluster

Last edited by dorsetsmith on 19th Jan 2017 9:28pm. Edited 1 time in total

19th Jan 2017 9:12pm

mastertech

Member Since: 19 Jan 2017
Location: manchester
Posts: 5

dorsetsmith wrote:
Engine wiring loom chaffing on metal engine block

It's not a coolant sensor fault in sdd it's saying loss of can , engine relay and incompatible software

19th Jan 2017 9:25pm

mastertech

Member Since: 19 Jan 2017
Location: manchester
Posts: 5

dorsetsmith wrote:
coolant sensor is wired ECM

No I agree it is wired in the ecm
But the fault is communication to cluster via ecm
I will check loom but was kind of hoping there was a tbs or something

My apologies it posted twice am mobile at the moment

19th Jan 2017 9:28pm

mastertech

Member Since: 19 Jan 2017
Location: manchester
Posts: 5

dorsetsmith wrote:
coolant sensor is wired ECM

controller area network between ecm to instrument cluster

battery light wired to instrument cluster

thank you dorsetsmith is there any particular place they chaff ?

19th Jan 2017 11:21pm

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