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1999 V70 XC - replaced my engine harness, two wires unaccounted for

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meyersv70
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1999 V70 XC - replaced my engine harness, two wires unaccounted for

Post by meyersv70 » Fri Aug 23, 2019 7:21 pm

Recently replaced my engine harness on my Volvo v70 xc there are two wires I can't find a connection to, ones black ones brown/ the black one is near the alternator the other is near the starter. but does not go to the starter.
Last edited by matthew1 on Fri Aug 23, 2019 7:31 pm, edited 1 time in total.
Reason: improved title



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Re: 1999 V70 XC - replaced my engine harness, two wires unaccounted for

Post by scot850 » Fri Aug 23, 2019 11:21 pm

Can you take a picture? It makes ID much easier.

Neil.


2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
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abscate
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Re: 1999 V70 XC - replaced my engine harness, two wires unaccounted for

Post by abscate » Sat Aug 24, 2019 5:02 am

The ECT sensor wire runs near the alternator

The mAP and MAT sensors are near the starter on the induction path

Oil pressure sensor on the block near starter


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Re: 1999 V70 XC - replaced my engine harness, two wires unaccounted for

Post by meyersv70 » Sat Aug 24, 2019 6:18 pm

Ect sensor is connected, map sensor is connected. Black and brown wires have metal ends with hole in the center like a ground wire.



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Re: 1999 V70 XC - replaced my engine harness, two wires unaccounted for

Post by meyersv70 » Sat Aug 24, 2019 6:37 pm

oil pressure sensor is connected also.?



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Re: 1999 V70 XC - replaced my engine harness, two wires unaccounted for

Post by wizechatmgr » Sat Aug 24, 2019 9:27 pm

AC compressor clutch?


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In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD - ~177k miles

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Re: 1999 V70 XC - replaced my engine harness, two wires unaccounted for

Post by abscate » Sun Aug 25, 2019 4:31 am

meyersv70 wrote:
Sat Aug 24, 2019 6:18 pm
Ect sensor is connected, map sensor is connected. Black and brown wires have metal ends with hole in the center like a ground wire.
Those would be grounds. One is on the subframe behind the radiator with an M6 bolt.

Worst case , attach to engine block.


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