OBC - Range and MPG modes not functioning

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Kftca
Posts: 15
Joined: Tue Nov 01, 2022 4:10 pm
Location: NS

OBC - Range and MPG modes not functioning

Post by Kftca »

Good day Forum:
I am requesting some help with my OBC computer please. My car is a 1988 635CSI, and I repaired the OBC over the winter by installing a new backlite
in the unit. I was very pleased to see it fire up and is functioning in all modes EXCEPT for the Range and the MPG and AVG MPH mode. RANGE and MPG read "----" and AVG MPH reads 0.

My speedometer, odometer, cruise, and fuel gauge are all functioning properly.

I am wondering if anyone else has had this issue before and if so how did you fix it?

Any help or suggestions greatly appreciated.

Thanks

Karl
TimU
Posts: 280
Joined: Tue Dec 14, 2021 2:16 am
Location: Sydney

Re: OBC - Range and MPG modes not functioning

Post by TimU »

04/1986 635csi Euro spec
Australian Delivered, RHD
Kftca
Posts: 15
Joined: Tue Nov 01, 2022 4:10 pm
Location: NS

Re: OBC - Range and MPG modes not functioning

Post by Kftca »

Timu
Thanks so much for pointing me to this thread. A wealth of info here! I know where to troubleshoot now.
( this forum is superb!)

Karl
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