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UPC fault

3.4K views 10 replies 4 participants last post by  Fraser L  
#1 ·
Hello,
I have one code on our Grand Scenic 2010. The car drives great but this code brings on a spanner light and check vehicle warning.

As shown in picture the code is DTC921114 - UPC Permanent Supply Circuit.

I have checked the engine bay fuse box and all plugs underneath seem to be in okay. I have also attached a lead from negative to engine body ruling out any earth issues.

When I clear the code and start the engine the light goes out for about a second before coming straight back on.

Any help would be appreciated. Thanks

Image
 
#2 ·
on my mk.2 battery terminal has fuses under cover , and the mk.2 you have to split open fuse box to access maxi fuse for the big 80 amps jobs, my mk.3 ( yes i have one of each ) i can look tomorrow
 
#6 ·
all i can say is check fuses with multimeter.... remove and test as some times they look ok when in place