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1998 S70 T5 unique battery drain at fuse #5

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
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abscate
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Re: 1998 S70 T5 unique battery drain at fuse #5

Post by abscate »

Look at the PTC in the wiring diagram. I believe it’s live 12 V all the time, the ECM grounds the heater to heat it. If that is always hoot, the ECM is faulting
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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