Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hi Im David, did you install an aftermarket stereo system?
he probably spliced into the k line from the DLC connector, which is going to need repaired to be able to start it.
you have a meter?
oh crap, this is an obd1.5 huh?
when you crank the vehicle does the security light go out?.
ok, then its not a security issue. when you crank it are you getting rpms?
ok, well at least we know its not the crank sensor
when you turn the key to the run position can you hear the fuel pump running for a couple seconds
and it ran before you removed the radio?
did you have to cut any wires?
its possible for a fuse to go.
great..... you're going to have to look down in there for any cut wires.
ok. cool. keep me posted ill send you a print of the radio wiring in a bit
1995 Buick LeSabre Stock Radio Wiring Diagram
Car Radio Constant 12V+ Wire: OrangeCar Radio Ignition Switched 12V+ Wire: YellowCar Radio Ground Wire: Black/WhiteStereo Radio Illumination Wire: Gray/BlackStereo Radio Dimmer Wire: Brown/WhiteStereo Radio Antenna Trigger Wire: Dark GreenStereo Radio Amplifier Trigger Wire: N/AFront Speakers Size: 5 1/4″ SpeakersFront Speakers Location: DoorsLeft Front Speaker Wire (+): TanLeft Front Speaker Wire (-): GrayRight Front Speaker Wire (+): Light GreenRight Front Speaker Wire (-): Dark GreenRear Speakers Size: 6″ x 9″ SpeakersRear Speakers Location: Rear DeckLeft Rear Speaker Wire (+): BrownLeft Rear Speaker Wire (-): YellowRight Rear Speaker Wire (+): Dark BlueRight Rear Speaker Wire (-): Light Blue
so they bypassed the immobilizer?
if the stock radio is back in the car, then it needs to go back to stock wiring. remove that damn bypass.
what color wire is the resistor on?
The brain of the PASS-Key II system is a special decoder module that reads the pellet resistance through the lock cylinder contacts. It then comparesthis key code with its own internal code.If the codes match, the decoder supplies a ground for the starter enable relay and modulates a 5 volt reference signal (at 2.5 volts) from the ECM or PCM which will then pulse the fuel injectors.If the codes do not match, the decoder module sets its internal timer which locks out starter operation and fuel enable for up to three minutes
orange would be battery positive
if the bypass resistor was spliced into the orange wire, that orange wire from the ignition switch goes to the battery for 12vdc operating power
if you wire it up as it used to be with the stock radio by removing the bypass resistor, it should go back to how its supposed to work, as long as that frickin resistor didnt screw up the decoder.
the fix would be to make sure the decoder resistance matches the key. which it should since its stock. i hate when people instaqll aftermarket bullshit. it screws up the original operation of the vehicles electronics and leaves headaches like this.
appreciate it. good luck
lets try this. turn the key to the run position. light should flash. wait until it goes steady. should be approximately 10 minutes. turn key off. turn key back to the run position. let the light flash until it stops and stays on steady. turn key off. turn key back to run. wait til light stays on steady. turn key off, then start the car.
let me know
ok. let me see what else we can try
cut the wires from B7 and B8 back about 3 inches from the vats module and solder in the bypass resistor ....doing the the soldering under the glove box. you have to take those wires out of the system, meaning cut them clean out. No temporary jumping or anything. The module has to see that resistance +/- 100 ohms, I think. Don't forget to cap and stow those two wires that are left hanging.
ill get you the print
the connector is the top left one. just follow the B column down to locations 7 and 8
check fuse 7
it should say fuel control
what about in the engine compartment?
you need a computer.
on a 95, as long as the part numbers are exact. it should be plug n play.
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