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1995 850 what have i done?

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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57gretsch
Posts: 31
Joined: 21 October 2015
Year and Model: 2005 XC90 T6
Location: Fredericton, New Brunswick, Canada
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1995 850 what have i done?

Post by 57gretsch »

While investigating the dtc for a3 142...I found a ground connection that was not attached. Two ground attachments near the brake light switch, to the left. I plugged it back on. There was clicking from under the hood and the courtesy light seemed to get brighter. After that... no start and dtc code for port a3 shows 444 no power to abs. Have I inadvertantly fried a relay somewhere?
No good deed ever goes unpunished.

1997 855 T5, 2000 V70XC, 1998 V70 AWD Manual, 2007 XC70
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User avatar
57gretsch
Posts: 31
Joined: 21 October 2015
Year and Model: 2005 XC90 T6
Location: Fredericton, New Brunswick, Canada
Been thanked: 2 times

Post by 57gretsch »

Well...the ground wire was for the chime. The no start was the PNP switch ( i must refurbish that.) But...it seems the the ABS control unit is beginning to fail. The first sign was the 142 code. I cannot find any reasonable cause. When the 444 code appeared I checked all fuses and come to the conclusion that it is on its way out.
No good deed ever goes unpunished.

1997 855 T5, 2000 V70XC, 1998 V70 AWD Manual, 2007 XC70
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