Question about 1997 Pontiac Sunfire

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Pontiac sunfire 97 replaced ignition module and crank sensor.. anti theft light is on solid and car only cranks what can i do to get the car started

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Car starts up then shuts off. Theft light comes on. Took it to the dealer to diagnose. Result was bad "pass lock sensor". Dealer wanted $300 for the part and with labor they wanted to charge $615. yea right. Found online that this system can be bypassed with keyless entry module. www.gmpasslock.com. Ordered part #PLJX for $79 and had it installed at Alarms etc. in tampa florida on nebraska ave. for $75. Their number is 813-971-5950. Ops ck good

Posted on Aug 23, 2012

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Repair the anti theft system as car thinks you are trying to steal it.

Posted on Feb 01, 2011

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1 Answer

Have a 2002 pontiac sunfire need to temporarily bypass ignition switch and module....what wires go to where?


Can You Hotwire car Like in the Movies Hollywood Secrets Revealed
Good luck .! Anti-theft system won't let it happen . The PCM - engine computer will be in lock up mode . Can't by-pass the BCM either ! You can get it to crank but it won't start an keep running .

Jun 10, 2017 | 2002 Pontiac Sunfire

1 Answer

1997 Pontiac Firebird, will not crank. Changed fuel pump and the relay, now the security light is coming on and injectors will not engage...HELP


On my '97 Camaro, the first thing I hear when turning the ignition key is the fuel pump run and the fuel rail pressure up. .
First thought is, manual cars must have clutch depressed and auto cars in Park or Neutral to enable cranking. If these inhibit switches are faulty then that could be your problem. Had an old 5-speed manula Pontiac Fiero with a faulty inhibit switch. I just bypassed the switch with a piece of jumper wire. Just had to remember to ensure car was in neutral when starting!!
Do you have a shop manual with wiring diagrams? The Haynes manual schematic covering both Camaro and Firebird diagram shows a theft deterrent relay between the starter key switch and the main starter solenoid mounted on the starter motor. This relay actuating coil has a volts feed on one side of the coil from the inhibit switches fitted to ensure the car is in Park or Neutral for Automatics or the clutch must be depressed for manual cars. The other side ot this relay coil is grounded via the Theft Deterrent Module.
There is also a further fuse. Number 16, a 3 amp fuse labelled "Crank fuse" that is labelled as going to the Diagnostic Energy Reserve Module. Not sure what that is but with the fuse labelled "crank fuse" it sounds important!! it may be linked to the theft deterrent module but my manual is not clear on that.
If all the fuses are OK then I think the problem lies in the anti theft system.
To bypass the anti-theft and enable cranking you could simply break the yellow/black wire from the theft deterrent relay and ground the relay coil. (cut the wire and connect to ground / chassis, the bit going to the relay not going toward the anti-theft module) Turning the starter key should then apply volts that are coming from the transmission inhibit or clutch inhibt switches to the coil of the theft inhibit relay. This relay then pulls in and applies vots to the main starter solenoid and so enable cranking. The starter solenoid should be heard as a solid thunk as it pulls in. Small relays as a tick.
If this works then wire in a hidden switch in this ground wire to act as a unique anti theft device.
However if the vehicle control electronics are also fried then you will still have problems.
Hope all this is of some help and best of luck.
Cheers, Brian. (Over in Manchester, England, Europe)

Oct 31, 2013 | Cars & Trucks

1 Answer

Pontiac


Hi Paul,here's how to reset your system.
  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to start the engine, then release the key to ON. The vehicle 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 passwords on the next ignition switch transition from OFF to CRANK.
  6. Start the engine.

May 30, 2013 | Cars & Trucks

1 Answer

1998 sunfire in codep1629, how do I fix it


You may want to do some research on the code. The basic problem is the anti-theft system is not seeing a crank signal and shutting down the fuel pump. It could be the security system, or the crank sensor, or other issues.
If you have auto start or a remote starting system it can cause these problems too.

Aug 05, 2012 | 1998 Pontiac Sunfire

2 Answers

Car doesn't crank is it battery, fuses or security tried to crank car din't hear starter but a lot of noises like clicling and sounds from fuil pump i think


Put the key on ACC. Does anti theft light up and stop? If it keep flashing while your cranking then it is the ANTI -THEFT. (by the way the humming noise ifs the fuel pump). If the anti theft doesnt light up during the cranking youll need the ignition module why I say that if it was crank position sensor the fuel pump wouldnt activate. your safe with the ignition module.and if you want it doesnt hurt to replace crank sensor why I say this the year.Its been a while just a suggestion

Apr 23, 2011 | 2004 Buick LeSabre

2 Answers

97 pontiac sunfire anti theft ligth is on dont turn off or blink


can u explain more about the thin wire and jump the teminals on the right?? i dont get it,, the deal with my car is , the anti theft light its no blinking just stay on, thank u so much

May 14, 2010 | 1997 Pontiac Sunfire

2 Answers

2004 sunfire, engine will crank but wont start, could it be anything besides the fuel pump? There have been no advanced warnings.


CHECK 20 AMP IGNITION FUSE.AND CHECK FUEL PUMP AND FUEL INJECTOR FUSE.IF ALL IS GOOD HAVE CAR SCANNED A FAULTY CRANK SHAFT SENSOR OR OPEN EGR VALVE.OR FAULTY PCM WILL CAUSE NO START PROBLEMS.ALSO ANTI THEFT SECURITY SYSTEM WILL SHUT DOWN CAR.WHEN YOU HAVE IT SCANNED IT WILL TELL YOU THE ANTI THEFT SYSTEM IS THE PROBLEM..

Jan 23, 2010 | 2004 Pontiac Sunfire

2 Answers

My 97 Sunfire won't start


is your anti theft light flashing or on????? does it crank or not??????

May 12, 2009 | 1997 Pontiac Sunfire

1 Answer

Starter on Sunfire won't crank


has the starter recall be done to the car yet if so it should have relay added to syatem and starter wire cut inhave with purple wire run to small wire on starter.

Dec 23, 2008 | 1997 Pontiac Sunfire

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