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Pontiac Grand Am Security Passlock Problems

1226 messages,  Last post on May 13, 2013 at 1:41 PM

You are in the Pontiac Grand Am Forum.

What is this discussion about? Pontiac Grand Am, Security System, Sedan

    
Go to NHTSA to file a safety complaint.
Or call Monday-Friday (8 am to 8 pm ET) (888) 327-4236 TTY: (800)424-9153
 
    For those experiencing the security passlock problem, please see long-time member lovemygrandam's GM Security Passlock Fix tutorial.

Messages Page 116 of 123

#1148 of 1226 99 grand am by workingman8

Sep 01, 2012 (7:46 pm)

i am trying to do this bypass, i removed the radio, looking for the three wires, i can only find 2 separate groups of wires, one bundle appears to have fifteen or more wires in it, the other has about seven, the smaller bunch has a heavy yellow wire and a thin black wire, don't think these are the correct wires, the larger bundle appears to hook up to the ignition switch, where do i find the wires i need to cut, are they by chance located under the steering column?

#1149 of 1226 Re: 99 grand am [workingman8] by lovemygrandam

Sep 02, 2012 (5:44 am)

Replying to: workingman8 (Sep 01, 2012 7:46 pm)
The three wires you are looking for will go to the Key lock assembly at the end closest to the driver. The rest of the wires going to the ignition switch will be routed to the end of the key/ignition assembly nearer the front of the vehicle. They may be routed around the tumbler assembly underneath.
The three wires you are looking for are 20 Gage or smaller... probably the smallest Gage you will find in the bundle.
You may be better off trying to access these wires at the BCM, as described at:
http://bergerweb.net/grandamsecurityfix.htm
Good luck

#1150 of 1226 Re: grandam security problem Fixed [m0s] by lovemygrandam

Sep 02, 2012 (5:55 am)

Replying to: m0s (Aug 31, 2012 8:56 am)
I don't think the 97 grand am uses the BCM for it's passlock system, but you can find out if you get hold of a service manual and look up the wiring diagrams for the "Security" system.

#1151 of 1226 passlock?? by plumcrazy72

Sep 08, 2012 (4:01 am)

i've been reading all the posts about the passlock. my 04 grand am has all the symptoms except it won't crank at all. when i turn the key nothing happens. i've checked the battery, relay and starter and they all work fine. i'm wondering if my problem is the passlock or possibly something else

#1152 of 1226 Re: passlock?? [plumcrazy72] by lovemygrandam

Sep 10, 2012 (12:45 pm)

Replying to: plumcrazy72 (Sep 08, 2012 4:01 am)
plumcrazy72
The passlock system DOES NOT keep the starter motor from running. The passlock circuitry detects if the lock cylinder has been tampered with, and if so, it sends a signal to the powertrain control module, which then stops the fuel injectors from operating.
R Berger

#1153 of 1226 Re: passlock?? [lovemygrandam] by plumcrazy72

Sep 10, 2012 (2:54 pm)

Replying to: lovemygrandam (Sep 10, 2012 12:45 pm)
ok. my battery is good. i swapped the relays and i can make the starter with a screwdriver. any ideas what it might be? by the way, when i turn the switch on the security light stays on. tried the 10 min and the thirty min thing, light doesnt go off.

#1154 of 1226 Re: passlock?? [plumcrazy72] by lovemygrandam

Sep 10, 2012 (7:11 pm)

Replying to: plumcrazy72 (Sep 10, 2012 2:54 pm)
OK, in your case, you have two malfunctions.
To get the security light to go off, you will probably have to perform one of the resistor bypass mods listed at www.bergerweb.net. The light being on solid indicates that there is either an open circuit, or a shorted circuit in the Passlock wiring.
The starter motor not running indicates bad circuitry between power distribution and the starter solenoid in circuit #5. The components that could cause the problem are:
* Fuse 5 (40 amps) in the underhood fuse block.
* The ignition switch (in the start position, there should be a short between pins A and B of the ignition switch)
* Either the Clutch Pedal Start Switch (manual transmission) or the Park/Neutral Position Switch (automatic transmission) is out of adjustment or defective. [these are the most likely suspects]
The fact that you have shorted between the battery terminal and the "S" terminal of the solenoid verifies that one of the above is the fault.
In case you need it, below is the wiring diagram for a 2002 Grand Am. Probably the same as your vehicle. [right click on the picture and choose, "View Image" to get a larger diagram.

#1155 of 1226 Re: passlock?? [lovemygrandam] by plumcrazy72

Sep 14, 2012 (11:09 am)

Replying to: lovemygrandam (Sep 10, 2012 7:11 pm)
there are two A and two B pins. one set works with the switch in the on position and the other works in start position. if that means the switch is ok then how do i test the park nuetral switch? i have already removed the switch but i can't find any info on testing

#1156 of 1226 Re: passlock?? [plumcrazy72] by lovemygrandam

Sep 14, 2012 (12:41 pm)

Replying to: plumcrazy72 (Sep 14, 2012 11:09 am)
Use the wiring diagram. Note the color of the wires, which will enable you to trace through the circuit, using an Ohmmeter. With the PNP switch installed and adjusted properly, you should read a short between the big yellow wire coming from the ignition switch, and the "S" terminal of the starter solenoid when the shifter is in "park" or "neutral". If not, follow the instructions in the manual to adjust the PNP Switch.
 
If your starter motor won't run in either the Park or Neutral position, Try moving the shift lever to other positions while holding the key in the "Start" position. this may give you a clue to the adjustment you must make to get it to work.
 
Following are the instructions in my own service manual, which could be useful for you too.
_____________________________________
Installation Procedure (Old Switch)
Using Old Switch
 
   1. Place the shift shaft in N (Neutral).
   2. Align the flats of the shift shaft with the switch.
   3. Install the park/neutral position switch mounting bolts. Tighten the bolts to 24 Nm (18 ft. lbs.).
 
Important: Ensure that the engine will only start in the P (Park) or the N (Neutral) position. Readjust the switch if the engine will start in any other position.
 
   4. Connect the negative battery cable.
 
Installation Procedure (Using New Switch)
 
   1. Place the shift shaft in the N (Neutral) position.
   2. Align the flats of the shift shaft to the flats in the park/neutral switch.
   3. Install the park/neutral position switch assembly.
   4. Install the park/neutral position switch mounting bolts. Tighten the bolts to 24 Nm (18 ft. lbs.).
   5. Align the holes with the mounting boss on the transmission. Place the shift control lever in the N (Neutral) position. Do not rotate the switch. The switch is pinned in the N (Neutral) position. If the switch has been rotated and the pin is broken, adjust the switch. Refer to the using old switch installation procedures.
 
Important: Ensure that the engine will only start in P (Park) or N (Neutral). Readjust the switch if the engine will start in any other position. Refer to the using old switch installation procedures.
 
   6. Connect the negative battery cable.
   7. Place the transmission control shifter assembly in the N (Neutral) notch in the detent plate.
   8. Loosen the park/neutral position switch attaching bolts.
   9. Rotate the switch on the shifter assembly in order to align the service adjustment hole with the carrier tang hole.
  10. Insert a 2.34 mm (3/32 inch) maximum diameter gage pin to a depth of 9.0 mm (9/64 inch) . Tighten the bolts to 24 Nm (18 ft. lbs.).

#1157 of 1226 Key won't turn - steering won't lock by rick2165

Sep 21, 2012 (1:25 pm)

2003 Grand Am GT1... I replaced the key cylinder, fix the issue for 2 days. The new cylinder locked up like the old one. Seems that the steering not locking must be related. Since the new cylinder requires damaging to remove, I am hesitant to install another cylinder until identifying the real root cause of the issue. Anyone have any ideas?

Messages Page 116 of 123

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