Bryguitar · Jul 23, 2016

Hi,

I have a problem with my oil warning light, the problem is it never comes on even when engine isnt running. ive changed bulb, checked contacts on the back of the clock which comes back around 12v so bulb is getting power, changed oil switch checked cable to switch all seems fine. can i fit a second hand speedo clock cluster incase its the circuit fault as can get them from ebay ?

Thanks

brianp38dse · Jul 23, 2016

Which model are we talking about if its a p38 if you plug another speedo in you will get odometer incorrect on dash as it stores mileage and must match that stored on becm.

wammers · Jul 23, 2016

brianp38dse said:
Which model are we talking about if its a p38 if you plug another speedo in you will get odometer incorrect on dash as it stores mileage and must match that stored on becm.

As far as i am aware if the odometer reading is higher than the BECM the highest mileage will be used. Maybe wrong.

tomcat59alan · Jul 24, 2016

Bryguitar said:
Hi,

I have a problem with my oil warning light, the problem is it never comes on even when engine isnt running. ive changed bulb, checked contacts on the back of the clock which comes back around 12v so bulb is getting power, changed oil switch checked cable to switch all seems fine. can i fit a second hand speedo clock cluster incase its the circuit fault as can get them from ebay ?

Thanks

Did you earth the pressure switch wire ? If the bulb lights when you do you have a duff new switch.

Bryguitar · Jul 24, 2016

Thanks for the replies, I will try earthing the switch. Also my Range rover p38 has 95.000 on my clock the new one has 88.000 will is just goto the highest which is my original using ecu memory and store my 95k to the new clock ?

Thanks

Bryguitar

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brianp38dse

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wammers

No longer with us, RIP

tomcat59alan

Well-Known Member

Bryguitar

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