Question about 1997 Chevrolet Cavalier

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Following the passlock procedure on an 05 avalanche soes not work

Avalanche was parked next to a tree that was hit by lightning. Literally blew up a chip inside the PCM. Replaced PCM with new unit that had been programmed by a auto shop in the US (The avalanche is in the BAHMAS) Followed passslock reprogramming, except the security telltale does not stay on for ten minutes (only about three seconds) Will not start. All fuses good. Where is the PAsslock code stored? Is there another computer I need to replace. HArdly anyhting else on the truck works (winsheild wipers, hazard flasher, drivers side power mirror, cig lighter, aux outlet, horn) thats about it

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Check the fuse and relay again, make sure that the pcm wire are connect properly, get it reprogramme

Posted on Jul 23, 2009

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Posted on Jan 02, 2017

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While parked a tree branch fell on the truck now it won't start it ran fine before the tree branch fell


A Tree Fell on Your Car: Now What?-Allstate

https://www.allstate.com/tools-and.../car.../tree-fell-on-car.aspx

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Will landlord's home insurance pay for tree that fell on my car?

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Pittsburgh Post?GazetteNov 23, 2012 - Pittsburgh Then & Now ... The philosophers wanted to know what happens when a tree falls in a forest. ... and knock branches onto your home, causing serious damage." Coverage ... But if you do the same to your own property, your own auto policy probably won't cover damages to your trees and shrubs.

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Jan 25, 2016 | Cars & Trucks

4 Answers

How to reset security ignition on a 1999 chevy silverado?


There is a lot of info on this site that you can read up on. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Sep 07, 2014 | 1999 Chevrolet Silverado 1500

1 Answer

2003 Avalanche reverse not engaging


They are known for having a weak internal sun shell housing. But that means a rebuild.

Dec 26, 2013 | 2003 Chevrolet Avalanche

1 Answer

2005 avalanche Fog lights are staying on with


The fog lamps are computer controlled .the body control module (BCM) will energize the fog lamp relay control circuit. The BCM receives the park lamp ON signal from the interior park lamps supply voltage signal circuit.
DTC B2527 Front Fog Lamps Circuit Low
The body control module (BCM) monitors the front fog lamp switch signal circuit in order to determine when the fog lamp relay is to be energized. When the BCM senses that the front fog lamp switch signal circuit is grounded momentarily by pressing the fog lamp switch, the BCM energizes the fog lamp relay by grounding the fog lamp relay control circuit.

Your best bet , take it to the dealer . Could need BCM replaced , would need to do testing using the Tech 2 scan tool . A new BCM has to be programmed .

Body Control Module (BCM) Replacement
If the body control module (BCM) is replaced, the following procedures must be performed in the following order:
BCM Reprogramming--Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems.
Important: This procedure has to be performed only for vehicles equipped with the Passlock™ System.
Theft Learn--Refer to Programming Theft Deterrent System Components in Theft Deterrent. A new BCM will learn the Passlock™ information automatically, but the powertrain control module (PCM) must still learn the theft information from the BCM.

Mar 29, 2017 | 2005 Chevrolet Avalanche

1 Answer

2007 Avalanche Left side parking and tail light don't work after changing bulbs


Next thing to do would be to check the bulb sockets to see if the terminals are bent/broken/corroded.

Feb 24, 2013 | 2007 Chevrolet Avalanche LTZ

2 Answers

My 03 chevy blazer 4 door has no spark and no fuel i think it might be the passlock and ideas for solutions?


Yes here is a great link for trouble shooting and fixing passlock security issues http://vatspasslockpasskeysecurityhelp.yolasite.com/

Aug 26, 2011 | Chevrolet Blazer Cars & Trucks

1 Answer

We had a tree struck by lightning last night. Now, our truck and sports car, parked 10 feet away, are both showing problems with charging system, (truck) and ABS, tracking system, and active handling...


Yes. Although the tires are suppose to insulate, there is enough humidity to allow the air to carry a charge. The ECM for example, can be interfered with by Radio frequencies. A lightning strike produces all kinds of freqencies beyond visible light.

You should document the tree strike and park your vehicles back into their spots if you do not already have photos of the tree damage showing the vehicles in the foreground or background.

This is comprehensive coverage with hidden damage discovered within a recent timeframe of the original event.

Aug 03, 2011 | Ford F-150 Cars & Trucks

1 Answer

Key will not come out & it will not crank the battery is fully charged.Starter is ok i think it has something to do with the key HELP!!!!!!1


Try the following procedure to reset the Passlock;

30 Minute Learn Procedure (requires no tools)
1) Turn ON the ignition, with the engine OFF.
2) Attempt to start the engine, then release the key to ON. (engine will not start)
3) Observe the Security telltale, after approximately 10 minutes the telltale will turn OFF.
4) Turn OFF the ignition, and wait 5 seconds.
5) Repeat steps 1 through 4 two more times for a total of 3 cycles (30 minutes). The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.

IMPORTANT: The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

In other words, don't forget the final step 4 before you try to start the car.

6) Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password.

Jul 07, 2010 | 2002 Chevrolet TrailBlazer

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