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 Pass Key light on = no start

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rhino

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Join date : 2014-02-24
Location : Manitowoc, Wis.

PostSubject: Pass Key light on = no start   Sat Jul 29, 2017 11:16 pm

Had an odd occurance just happen to me. Went to start the car , 96 RMW, after unlocking it with the remote and the amber Pass Key light was on. Plugged in my scanner to see what was up and the light went off and I could start it. Started just fine everytime after that. Any thoughts?
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jasonlachapelle

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Age : 33
Location : CFB Bagotville, QC.

PostSubject: Re: Pass Key light on = no start   Mon Jul 31, 2017 5:16 pm

Could be a one off, could be starting to go.  Hopefully your tuner disabled VATS in the tune. I've heard PCM4less used to disable it automatically.
You can essentially fix the pass key fault issue for 0$, provided VATS is disabled in your .bin.  

- Disable VATS in tune.  If you've had your car tuned, hopefully it's already done. IIRC PCM4less does it automatically.
- move your driver's seat back and lie on your back looking under the dash.  Over the E-brake, there's a black box held on by 1x 7mm screw.  That is the Theft Deterrent Module (TDM) Remove the screw, drop the box.  Detach the relay from the box but leave the releay connected.  Remove the connector to the TDM, then jumper A4 to B5 (yellow/gray to black/white).  http://www.goldsswagon.com/diagrams/impala_passkey_no_seo.pdf

See this post for pic of the TDM: [You must be registered and logged in to see this link.]
user TGO's method works, but is a more complicated way of doing the same thing.

Screw the resistor method.  Use this method and your car can be started with any correctly cut key, with or without pellets. The Pass Key Fault light will no longer illuminate, nor will the TDM disable injectors or starter.
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rhino

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PostSubject: Re: Pass Key light on = no start   Tue Aug 01, 2017 7:44 pm

Thanks for the info Jason.
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phantom 309

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PostSubject: Re: Pass Key light on = no start   Tue Aug 01, 2017 8:11 pm

Clean the chip with alcohol
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phantom 309

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PostSubject: Re: Pass Key light on = no start   Tue Aug 01, 2017 8:12 pm

Clean the chip with alcohol
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rhino

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PostSubject: Re: Pass Key light on = no start   Tue Aug 01, 2017 9:18 pm

Already did
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rhino

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PostSubject: Re: Pass Key light on = no start   Tue Aug 01, 2017 9:18 pm

Already did.
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