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 Pass Key Fault

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jasonlachapelle

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Join date : 2011-01-24
Age : 34
Location : CFB Bagotville, QC.

PostSubject: Pass Key Fault   Tue Jul 04, 2017 4:11 pm

95 caprice, 135k km. Steady on. Car starts fine. Came on yesterday, stayed on for 4 starts, went away on the 5th for 2-3 min and came back.

I disabled VATS in the tune but I don't think it does anything, because the car won't start with a key with no chip.

I cleaned both the key and the cylinder with 99% isopropyl alcohol and contact cleaner but no joy.

Am I heading towards a car that just won't start one day?

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jasonlachapelle

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Age : 34
Location : CFB Bagotville, QC.

PostSubject: correction   Wed Jul 05, 2017 2:09 pm

Now that the pass key fault light is on, the resistor-less key starts the car, whereas I am 100% sure it did not start it before.

I suspect that to be on the safe side I need to ground A4 off the TDM.

http://www.goldsswagon.com/diagrams/impala_passkey_no_seo.pdf

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jasonlachapelle

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Posts : 1091
Join date : 2011-01-24
Age : 34
Location : CFB Bagotville, QC.

PostSubject: resolved   Wed Jul 05, 2017 4:25 pm

removed TDM completely, but left the relay in the car.

Jumpered A4 to B5 on the now empty TDM connector. No light, starts fine.

Huzzah
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