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Old Jul 18, 2013 | 05:09 PM
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Default Bill Dearborn

In 2009 you posted a thread showing the connections and wire colors for a 1999 harness at the EBCM.

Do you have one for a 02?

My understanding is

Pin A is hot all the time.
Pin B is hot in run mode.
Pin G is ground.

Not sure of the other pins.

Can I check voltage with the harness removed from the EBCM or not?


How do I check resistance in the wire from the PCM to the EBCM.


As you can see by my question, im treading water with electrial.

Trying to have all the information for what ever shop I use.


Thanks

WJ
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Old Jul 19, 2013 | 12:36 AM
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Here is a 2001-2004 EBTCM power ground Schematic.

Yes you can read the power with the connector disconnected.

BC

Last edited by Bill Curlee; Jul 19, 2013 at 12:39 AM.
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Old Jul 19, 2013 | 09:58 AM
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Default Bill Dearborn

Thanks BC this helps.

Wj
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Old Jul 19, 2013 | 12:28 PM
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Default Bill Dearborn

Bill,

With a test light;

Pin A is HOT

key in the run position

Pin B no POWER

Tested fuse#5 no Power. Tried different fuse no Power.

Any ideas?

WJ

Last edited by Wahoo12; Jul 19, 2013 at 12:30 PM. Reason: adding line
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Old Jul 19, 2013 | 01:26 PM
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Default Bill Dearborn

Bill,

Key on fuses engine compartment

19,18,17,22,16,13 power

fuses pass
21,22,19 power

WJ
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Old Jul 19, 2013 | 07:57 PM
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Your ignition switch is bad.

- C5 ignition Switch repair - http://forums.corvetteforum.com/c5-t...ch-repair.html
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Old Jul 19, 2013 | 10:42 PM
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Default Bill Dearborn

Mr.Bill,

I thank you very much. I will follow your procedure for cleaning.

Have a great weekend.

WJ
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