Question about 1996 Volvo 850

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When I turn on the ignition, the anti-theft red light is on and I cannot start the car

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It sounds like the immobiliser is not being disabled. Are you opening the car doors with the key fob? Also, a common problem is the immobiliser is not reading the chip in your ignition key. There is an antenna ring around the ignition lock which reads this chip, however, the antenna connector can corrode and can be fixed by simply replugging it a few times. To get to the antenna,remove the lower cowling around the steerinfg wheel.

Posted on Oct 09, 2008

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2002 Ford Explorer. Drove to the store turned it off went in came out 2 minutes later and it won't start or even make a noise but it is getting power. What could it be?


Is the red light on the top center of the dash pad flashing fast when trying to start ? The engine doesn't turn over ?
Anti-theft system problem !
PATS uses a visual theft indicator. This indicator will prove out for three seconds when the ignition switch is turned to RUN or START under normal operation. If there is a PATS problem, this indicator will either flash rapidly or glow steadily when the ignition switch is turned to RUN or START. PATS also "blips" the theft indicator every two seconds at ignition OFF to act as a visual theft deterrent.
PATS differs from the perimeter anti-theft system in that PATS enables and disables the engine from starting. If equipped, the perimeter anti-theft system protects the perimeter of the vehicle (doors, hood and trunk) and sounds an alarm.
The PATS is not compatible with aftermarket remote start systems, which allow the vehicle to be started from outside the vehicle. These systems may reduce the vehicle security level, and also may cause no-start issues. Remote start systems must be removed before investigation of PATS-related No Start issues.

Jun 16, 2015 | 2002 Ford Explorer

1 Answer

Replaced ignition switch in 1999 chevy cavaliar rs, anti-theft light comes on and stays on and won't allow car to start and remain on or run


You have to do a relearn procedure on the anti-theft system:

Attempt to start the vehicle. Leave the ignition on until the THEFT SYSTEM indicator turns off (about 10 minutes). Turn the ignition switch off. Leave the ignition switch off with key in for about 10 minutes. Attempt to start vehicle.

May 24, 2011 | 1996 Chevrolet Cavalier

2 Answers

The car wont start, the brake pedal is locked like the anti-theft is active, the anti theft light is flashing when the keys are in the ignition. when i try to turn it on it doesnt turn over, just makes...


TRY REPROGRAM KEY .PUT KEY IN IGNITION SWITCH TURN IGNITION SWITCH ON POSITION 20 SECONDS DONT START ENGINE WAIT 20 SECONDS TURN OFF SWITCH THEN TURN SWITCH BACK ON 20 SECONDS WATCH THE THEFT SECURITY LIGHT BLINKING.WHEN THEFT STOP BLINKING VECHICLE WILL CRANK.IF LIGHT STILL BLINKING.TRY FEW MORE TIMES KEY IN SWITCH ON POSITION FOR 20 SECONDS.MAKE SURE YOU HAVE THE CORRECT CAR KEYS IN SWITCH IF NOT WRONG SET OF CAR KEYS WILL SET OFF THEFT SECURITY SYSTEM.IF KEY RESETTING TRICK DONT WORK.CHECK BATTERY POWER MAKE SURE YOUR BATTERY HAS 12.5 VOLTS AND CHECK SECURITY THEFT FUSE.IF ALL LOOKS GOOD YOUR SECURITY HAS TO BE CHECKED OUT AT THE DEALERSHIP.

Oct 08, 2010 | 2006 Ford Fusion

2 Answers

Resetting the anti theft system


Place key in ignition, turn to ON position. (do not start)
Leave in ON position for EXACTLY 10 minutes.
As SOON as the anti-theft light turns off, then IMMEDIATELY start the car.
Then anti-theft is now reset.

Aug 12, 2010 | 2003 Buick Rendezvous

2 Answers

My theft light is flashing but my 1997 expedition wont start.The vehicle turns over but just don't start.


ANTI-THEFT SYSTEM Passive anti-theft system
Your ignition key has a unique imbedded transponder which engages engine electronics and allows the vehicle to be started. Without the use of your special ignition key, the vehicle will not start.

During each vehicle start, the coded key is read by the anti-theft system. If the key’s ID code matches the code in the anti-theft system, the vehicle is enabled to start.

Anti-theft system
Briefly illuminates when the ignition is turned to the ON position to verify that the passive anti-theft system is operating properly.

Also, its possisble that tou have actovated the fuel pump switch.

CHeck it.

Jul 20, 2010 | 1998 Ford Expedition

1 Answer

Turn ignition key and motor starts up, next day turn ignition key and motor just turns over and wont start. could it be anti theft problem its a 2002 f150 4 wheel drive with 4.6 liter


This could be caused by either a faulty Crank Shaft Position Sensor or the anti-theft system. Try put key in, turn to ON position for EXACTLY 10 minutes, As SOON as anti-theft light shuts off or stops flashing, then IMMEDIATELY start the engine.

Jan 13, 2010 | 2002 Ford F150 Regular Cab

2 Answers

Single mom can't do nothing cuz of car


You may have a faulty ingition. Otherwise you have the very common GM anti-theft system. If you have a flashing anti-theft light with key in igniton, then this is what you should do:

Put key in ignition, turn to ON position (Do NOT Start)
Leave in on position for EXACTLY 10 Minutes
Then while watching the anti-theft light, as SOON as the light turns off after 10 minutes, START CAR IMMEDIATELY after light turns off.

This will reset the anti-theft

Aug 20, 2009 | 1998 Dodge Caravan

3 Answers

Dont know how to reset or bypass gm theft system car is not starting .It tries and quits.


this is one way to reset it :
first make sure the battery is fully charged , then do the following:
key in the ignition but do not crank the motor, just leave it at the
ignition mode for ten minutes ,then turn it off POSITION for 5 seconds then REPEAT again 2 more times. at the 3 rd time youre gonna notice the ANTI THEFT light on dash to blink. when doing the last step , remove key , inserted again and turn on motor , good luck , AJ

May 28, 2009 | 2001 Chevrolet Malibu

1 Answer

Anti-theft


if the vehicle starts then stops and the anti-theft light is flahing you may need to re-set the pass-key system to do this you will need to atempt to start the vehicle and when it stalls leave the key in that position and watch the anti-theft light. it should flash on and off for about 5 to 10 minutes. when it stops flahing turn the ignition to off then try to restart your vehicle

Mar 19, 2009 | 1998 Pontiac Grand Am

1 Answer

Car want start


yes cut the power to it

Jan 03, 2009 | 2001 Ford Focus

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