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I've just changed the battery, and now when the ignition switch is turned on, there is no power to any component of the vehicle.. We've looked for loose wires, and haven't found any.

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It sounds like your anti theft system in engaged. you will have to do some research to fix as it varies with the type of car. sometimes it is as simple as disconnecting the negative battery terminal only for a short period of time.

Posted on Mar 29, 2015

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Check your new battery is fully charged.
Check your polarity is correct.
Check you have connected all leads back onto the battery terminal correctly.
A new battery should be reading over 12volts on a multimeter. Check the cca ( cold cranck amps ) rating on your battery meets your vehicle requirements
Check ignition fuse.

Posted on Mar 29, 2015

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Clean the battery contacts and try again

Posted on Mar 29, 2015

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Some lights stay on when the key is removed like the gear indicator light. What can cause this and can I add a battery toggle so I dont have to disconnect the battery every time I leave the car


I wouldn't do that given the complexity of electronic modules an data bus communication networks on this vehicle . Disconnecting batteries can cause modules to go to sleep an not wake back up . The ignition switch is an input to the BCM - body control module , the BCM turns on relays powering up systems on the vehicle .
The BCM executes the high power mode by grounding the controlled power relay coil control circuit of the CONTROLLED POWER relay whenever the BCM is awake. This circuit also is grounded for 15 minutes after you turn the ignition switch to the LOCK position in order to obtain the RAP function. After 15 minutes elapse, the BCM enter a sleepstate and transitions to the low power mode. The components under controlled power then receive any necessary voltage from the battery positive voltage circuit of the BCM. If the BCM is in the low power mode, and the BCM detects that the current exceeds approximately 2 amperes, the BCM wakes up and re-enters the high power mode. If the vehicle remains inactive with the ignition in the LOCK position and without any BCM wake-ups for a period of 3 days, the BCM deactivates the low power mode. The following components are under controlled power: There are probably DTC'S - diagnostic trouble codes stored in the BCM . A simple code reader can not read these , an has nothing to do with the check engine light . Battery Disconnect or Replacement Problems You may have been lucky so far disconnecting the battery .

Sep 14, 2016 | 2001 Cadillac Eldorado

2 Answers

Turn key on no power to dash and starter changed ignition relay still nothing


have the battery condition checked for holding charge , check under hood fuse box for the large fuse 40-100 amp depending on vehicle , keep me posted if you wish

Jul 27, 2015 | Cars & Trucks

3 Answers

Lost power steering, car died, changed battery, and barley made it home. The battery has power, but when you turn the key on the dome light and other lights, radio, windows, etc don't work.


Sounds like the vehicle is not charging you may need a new alternator get the car going with jump leads again and test the voltage at the battery terminals with a DC volt meter expect 13.5-14.5 if you get less than 13.5 your alternator is bad or wiring fault also check the alternator belt is tight.

Apr 27, 2015 | 2005 Volvo S40

2 Answers

Lots of power, dash lights up but no ignition power to starter, relay changed, neutral start switch changed, fuses good.


Well, looking at the schematic, there is the IGN A (Fuse 6) in the under-hood fuse block feeding power to both the ignition switch and to the NO contact of the starter relay. Turning the ignition switch to the START position sends this voltage thru the CRANK (Fuse 8) in the instrument panel fuse block and thru the PARK/NEUTRAL position switch, thru the starter relay coil to ground. This should activate the Starter relay and pass voltage to the starter solenoid to ground, activating it. One the starter solenoid activates, batter power is sent to the starter motor, activating it. If, as you say, the fuses are good, the starter relay was replaced and is good, and the Park/Neutral position switch was replaced and is good, then then only items left are the ignition switch itself, the starter solenoid/motor, or the wiring of the circuit.

Mar 12, 2015 | 2000 GMC Yukon XL

1 Answer

On a 89 f150 all of a sudden I had no power to guages, turn sig, dash, replaced starte switch and still nothing. I'm lost need help to locate problem.


look in the positive battery connection. it splits in two, one goes directly to the starter and the other goes to the instruments and ignition, for the description of the problem. I'd say that's where the problem is.

Dec 26, 2014 | 1989 Ford F 150

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

How to reset security light after installing a new ignition switch


Due to component variability, the vehicle theft deterrent (VTD) system must have the learn procedure performed regardless, if the vehicle starts on the first ignition cycle after a VTD repair.

You must perform a theft relearn procedure if any of the following components have been replaced:

  • Passlock sensor
  • Body control module (BCM)
  • Powertrain control module (PCM)
The above modules, with the exception for the Passlock Sensor must also be programmed with each module's own vehicle configuration.

Auto Learn:

Time required, approximately 10 minutes.

  1. Insure that the battery is fully charged.
  2. Use the scan tool in order to clear the DTCs.
  3. Turn the ignition switch from the OFF position to the CRANK position attempting to start the vehicle. The vehicle will start and then stall.
  4. Leave the ignition switch in the ON position while observing the security indicator.
  5. When the security indicator turns off, which can take up to 10 minutes, turn the ignition switch off. Wait 10 seconds.
The BCM and the PCM will learn the new code on the next start attempt.

Jul 17, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

Remove ignition lock to switch link 1995 suburban


The ignition lock assembly contains two components: a lock cylinder to deter theft and an electrical portion that supplies power to electrical components such as the radio, electric windows, and windshield wipers. The electrical portion of the ignition switch also provides power to the starter motor to start the engine.
The ignition lock is an anti-theft device that prevents a vehicle from being driven unless the ignition key is in the ignition switch. If the ignition key is not in the ignition switch, it 's impossible to turn the steering wheel.
To replace the ignition switch cylinder lock, the trim panels around the steering wheel are removed. Then the tamper-proof hardware that attaches the ignition lock assembly to the steering column is removed. The ignition lock assembly is removed from the steering column, and the lock cylinder is replaced. The new ignition lock is reattached to the steering column, and the trim panels are replaced.make sure you dissconect battery first the 1997 had a recall on the ignition switch dont no if the 1995 had a recall if so they will replace for free

Dec 08, 2010 | 1995 GMC Suburban

2 Answers

When I insert key to start the car it will not turn at all. What is this part called?


The component is a starter. When you insert your key into the ignition and turn it, you switch on the power to the coil and vehicle computers. By turning the key to the start position it will supply power to the starter and solenoid which cranks the engine until you release the key allowing to return to the ignition on position. If the battery is weak the starter solenoid may engage producing a clicking sound, but it will not crank the engine. Another test is to turn on the dome light and try to start the vehicle, if you see the dome light dim when you are trying to start the car the battery is weak or the starter has a short. Starters are temperamental at times and can be intermittent working sometimes and malfunction other times. Your ignition switch, fuse, or relay could also produce symptoms of your vehicle not cranking.

Jul 21, 2010 | 2004 Chevrolet Cavalier

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