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CAN-L Signal Low

Help, Advice, Owners' Discussion and DIY Tutorials devoted to the second generation C70, S40 and V50 Volvos -- awkwardly model year 2004 ½ onwards -- plus where to go for advice and discussion on Volvo's sporty C30 Coupe powered by Volvo's ubiquitous inline 5-cylinder power plant.
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CedBobKing
Posts: 36
Joined: 14 June 2017
Year and Model: 06 V70, S40, 07 S40
Location: Knoxville TN
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CAN-L Signal Low

Post by CedBobKing »

After connecting Vida to S40, I see the attached. "CEM-DF04 CAN-L, low speed network Signal too low."

All the things seem to function okay. Various searches suggest it is a short to ground which makes sense to me.

So here is my question, is this something common to these cars, and is there some spot in the wiring that I should be looking that is well known, or am I simply going to have to dig out the wiring diagram and spend time going through all the CAN-L around the CEM looking for continuity to ground?

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S40 CEM CAN-L signal low.png
S40 CEM CAN-L signal low.png (30 KiB) Viewed 597 times
2006 V70 2.5T 279,000 miles
2006 S40 2.4i 95,000 miles
2007 S40 2.4i 105,000 miles
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