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5v ref

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4 years 11 months ago #29074 by Dtnel
Replied by Dtnel on topic Re:5v ref
Been reading this thread. Interesting as I'm learning. I'm curious as to did the vehicle have any codes that sent you in the direction or replacing the parts you mentioned replacing initially?

IF you found they were bad that's good but what led to those bring deemed bad? Was it a guess, shot in the dark as sometime the parts cannon don't necessarily work.

Do you have a relay jumper where you put it between the relay and plug as you can take readings easily. I think Lisle Tools makes it.

Ill be following this thread for sure.

Sent from my SM-N960U using Tapatalk

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4 years 11 months ago #29094 by Ernrod
Replied by Ernrod on topic 5v ref
Strange but I get 12V with key off.
With the computer ground test.

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4 years 11 months ago #29097 by Ernrod
Replied by Ernrod on topic 5v ref
No 12V at pin 86.

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4 years 11 months ago #29098 by Ernrod
Replied by Ernrod on topic 5v ref
Is the computer supposed to ground pin 87 ONLY with key Is on or cranking?
I get good ground with key off

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4 years 11 months ago #29115 by Ernrod
Replied by Ernrod on topic 5v ref
Voltmeter leads contacted to pin 86 and battery negative, key on and cranking, I get .84 ohms

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4 years 11 months ago - 4 years 11 months ago #29116 by Ernrod
Replied by Ernrod on topic 5v ref
Test leads to pin86 and battery ground I get .85ohms.
Is that too much resistance?
Also, should I have 12V on pin 87 when cranking?
Last edit: 4 years 11 months ago by Ernrod.

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4 years 11 months ago #29117 by Ernrod
Replied by Ernrod on topic 5v ref
I do get battery voltage with leads on b+ and pin86

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