Ignition switch replacement

2002 CHEVROLET IMPALA
Avatar
DR JOE
  • MEMBER
  • 4 POSTS
I would like to know how to replace the ignition switch on my car. it is in the dash, not the column and I need to know the easiest way to get to it, test it and replace if need be.

Thanks Doc.
Nov 10, 2008 at 1:42 PM
Advertisement
Avatar
DAVE H
  • CERTIFIED EXPERT
  • 13,384 POSTS
hope this is of use IGNITION SWITCH Removal NOTE:Door, trunk and ignition are operated by one key. If procedure requires ignition switch lock cylinder to be replaced, new ignition switch lock cylinder should be recoded to old key. NOTE:Passlock(tm) sensor is an integral part of ignition switch assembly. Disconnect negative battery cable. Remove access cover from left instrument panel fuse block. Release left instrument panel insulator tabs from lower instrument panel trim pad retainers for access. Remove bolts from steering column filler panel. Release steering column filler panel retainers from instrument panel lower trim panel. Carefully lower panel away from instrument panel lower trim panel. Disconnect electrical connector from rear compartment release switch. Remove rear compartment release switch. Remove steering column filler panel. Remove bracket bolts from instrument panel driver knee bolster. Remove bracket bolts from instrument panel knee bolster at instrument carrier. Remove knee bolster bracket. Remove instrument panel cluster trim plate. See INSTRUMENT PANEL CLUSTER TRIM PLATE . Remove ignition switch retaining bolts. See Fig. 19 . Lower ignition switch away from instrument carrier. Insert key into ignition switch and turn to RUN position. If ignition switch lock cylinder rotates, go to step 8 . If ignition switch lock cylinder will not rotate or is seized, go to next step. Protect immediate work area with clean shop towels or a clean fender cover. Locate surface for ignition switch lock cylinder release button (2) on plastic ignition switch housing and center punch a location (1) on rib approximately 3/8 inch toward key entry end from cylinder release button. See Fig. 20 . Carefully drill a pilot hole through plastic housing with a 1/8 inch drill bit. Carefully drill a larger hole at pilot location, and slightly into ignition switch lock cylinder surface to break release button retaining spring using a 9/32 inch drill bit. Remove portions of broken spring from hole using a small suitable tool. Grasp ignition switch lock cylinder and remove it from switch housing. Remove any plastic from drilling operation, and using compressed air blow out ignition switch assembly. Go to next step. NOTE:The Passlock(tm) electrical connector cannot be removed until lock cylinder is removed. Depress transaxle park/lock cable retainer to release. Pull to remove park/lock cable from ignition switch. Depress detent on bottom of ignition switch in order to release ignition lock cylinder. Remove ignition lock cylinder with key. Disconnect Passlock(tm) electrical connector. Disconnect electrical connectors. INSTRUMENT PANEL CLUSTER TRIM PLATE Removal & Installation (Impala) CAUTION:Use correct fastener in correct location. Replacement fasteners must be correct part number for application. Fasteners requiring replacement or fasteners requiring use of thread locking compound or sealant are identified in service procedures. DO NOT use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage fastener. Use correct tightening sequence and specifications when installing fasteners in order to avoid damage to part and systems. Apply parking brake. Using a small flat-blade tool, remove bezel from ignition switch cylinder. If vehicle is equipped with a column shift, shift transaxle in to first gear. Ensure ignition key is in ignition lock cylinder. Adjust steering wheel to gain access. Remove access covers from right and left instrument panel fuse block, as required. Remove screws from instrument cluster trim plate. Starting at right end of instrument panel cluster, pull trim plate rearward. See Fig. 21 . Continue working around instrument cluster trim plate until all retainers are released from instrument trim pad. Disconnect electrical connector from hazard switch and from traction control switch (if equipped). Remove instrument panel cluster trim plate. To install, reverse removal procedure.


https://www.2carpros.com/forum/automotive_pictures/266999_Graphic10_1.jpg


https://www.2carpros.com/forum/automotive_pictures/266999_Graphic11_1.jpg

Aug 24, 2020 at 1:58 PM
Avatar
DR JOE
  • MEMBER
  • 4 POSTS
Well, I got the switch out and replaced it and still the car does not start. All fuses check okay.

So now what do I check?
Aug 24, 2020 at 1:58 PM
Advertisement
Avatar
DAVE H
  • CERTIFIED EXPERT
  • 13,384 POSTS
i thought the ignition was broken in some way from the way you asked in your first post. can i ask what the car was doing to make you replace the ignition switch? and what it is doing now still of course?
Aug 24, 2020 at 1:58 PM
Avatar
DENNYP
  • CERTIFIED EXPERT
  • 1,824 POSTS
You probably have a bad pass-lock sensor which is the part that plugs into the ignition switch.
Aug 24, 2020 at 1:58 PM
Avatar
DR JOE
  • MEMBER
  • 4 POSTS
Dave,

I am sorry that I did not state my problem first or along with my request.

Denny,

Where would that be located, I just replaced the ignition switch. I seen the wires from the pass-code plug, but I did not know where they go once they go into the wiring loom.

I did more research and reading, and what I am seeing is that the BMC is the number one thing that goes wrong on the 2002 Impala. At this point I am all ears on what to do or what might be the problem.

Thanks, Joe
Aug 24, 2020 at 1:58 PM
Avatar
DAVE H
  • CERTIFIED EXPERT
  • 13,384 POSTS
I still do not understand what the original fault with the vehicle was. and have you replaced lock cylinder or ignition switch?

IGNITION SWITCH
Removal
NOTE:Door, trunk and ignition are operated by one key. If procedure requires ignition switch lock cylinder to be replaced, new ignition switch lock cylinder should be recoded to old key.

NOTE:Passlock(tm) sensor is an integral part of ignition switch assembly

VEHICLE THEFT DETERRENT (VTD) SYSTEM
The anti-theft system has been incorporated into Body Control Module (BCM). Anti-theft system prevents vehicle operation if correct key is not used in order to start vehicle. Ignition key turns ignition lock cylinder. Cylinder rotation produces an analog voltage code in Passlock(tm) sensor. This voltage code is received by BCM. BCM compares voltage code to previously learned voltage code. If codes match, a class 2 message is sent from BCM to Powertrain Control Module (PCM). Message enables fuel injectors and crank relay.
The design of Passlock(tm) system is to prevent vehicle theft by disabling engine unless ignition lock cylinder rotates properly by engaging correct ignition key. System is similar in concept to passkey system. However, Passlock(tm) system eliminates need for a key mounted resistor pellet. Components of Passlock(tm) system are as follows:
Ignition lock cylinder
Ignition switch
Passlock(tm) sensor
Body Control Module (BCM)
SECURITY indicator
Powertrain Control Module (PCM)
Ignition Lock Cylinder and Housing
The Passlock(tm) sensor and ignition lock cylinder are one assembly. Passlock(tm) sensor is separate from key and lock cylinder. Key and lock cylinder work together in order to determine if proper ignition key was used to start vehicle.
In event of an open Class 2 serial data line between BCM and PCM, vehicle will become fail-enabled if PCM has already received password from BCM for that ignition cycle (engine running). When this happens, SECURITY indicator will illuminating PCM will become fail-enabled for future ignition cycles.
If a failure in Class 2 serial data line occurs before ignition cycle, when PCM is not fail-enabled, PCM will never receive a valid password in order to enable fuel injectors and crank relay and vehicle will not start.
Ignition Switch
The electrical switching portion of ignition lock cylinder assembly is separate from key and lock cylinder. Electrical switch portion and key and lock cylinder synchronize and work in conjunction through action of mechanical assembly between two components.
Passlock(tm) Sensor
The Passlock(tm) sensor contains 2 hall effect sensors. Tamper hall effect sensor is on top. Security hall effect sensor is under tamper hall effect sensor. Both hall effect sensors monitor magnet of lock cylinder through an opening. Tamper hall effect sensor is physically placed on top of security hall effect sensor. This arrangement enables tamper hall effect sensor to engage first if an intruder attempts to bypass Passlock(tm) sensor by placing a large magnet around that area of steering column. There is a tamper resistor inside Passlock(tm) sensor in order to help prevent tamper to system. Passlock(tm) equipped vehicles have a selection of 10 different security resistors ranging from 0.5K ohms to 13.6K ohms. Installing one of the security resistors inside Passlock(tm) sensor will generate a unique Passlock(tm) code. All 10 combinations of Passlock(tm) sensor have same part number.
Body Control Module
The Body Control Module (BCM) contains anti-theft system logic. BCM reads Passlock(tm) data from Passlock(tm) sensor. If Passlock(tm) data is correct, BCM will send a class 2 message to PCM to enable fuel injectors and crank relay.
During tamper mode vehicle may start. Vehicle will then stall. If BCM receives wrong Passlock(tm) data, VTD system will immediately go into tamper mode. Tamper mode will lock-out vehicle fuel injectors and crank relay for 10 minutes. SECURITY indicator will flash while VTD is in tamper mode.
If Passlock(tm) sensor sends a correct password to BCM when ignition is in RUN position, BCM will send a fuel enable and crank relay enable signal to PCM.
SECURITY indicator
The SECURITY indicator appears on message center inside instrument cluster. If SECURITY indicator flashes or if SECURITY indicator illuminates continuously during vehicle operation, refer to system diagnosis.
Powertrain Control Module (PCM)
The PCM communicates with BCM over Class 2 serial data line. When BCM determines an incorrect password, it sends a Class 2 serial data password to PCM in order to disable crank relay and fuel injection system. If BCM receives expected voltage from Passlock(tm) sensor, BCM sends a class 2 serial data password to PCM in order to enable crank relay and fuel injection system. PCM then allows vehicle to start normally.
Fuel Lockout Cycle
The Passlock(tm) system has a lockout cycle of approximately 10 minutes. Once vehicle is in lockout cycle, vehicle remains in lockout cycle for 10 minutes, even if ignition switch is turned from RUN position to OFF position.
The Passlock(tm) system uses lockout cycle in order to synchronize all of Passlock(tm) components when any Passlock(tm) related part is replaced. Passlock(tm) system requires 3 consecutive lockout cycles in order to complete 30 minute learn procedure for a changed component.
Changing Passlock(tm) Components
The design of Passlock(tm) system is to prevent theft even if various theft deterrent parts change. Parts that can no longer be changed without possibility of going into a tamper mode are Passlock(tm) sensor, BCM and PCM.
If you replace any of these parts, vehicle may not start for 10 minutes. This is long tamper mode. If this occurs, system must go through a long tamper mode cycle. During this time SECURITY indicator will be flashing for a full 10 minutes and DTC B3031 will be set. BCM and PCM require a full 10 minutes in order to complete a learn cycle. Ignition switch must remain in RUN position until SECURITY indicator stops flashing. You will need to repeat cycle if ignition switch does not remain in RUN position. When replacing any listed parts, program Passlock(tm) system. See PASSLOCK(tm) SYSTEM under PROGRAMMING.
The design of Passlock(tm) system is to prevent vehicle operation if proper ignition key is not used in order to start vehicle. Mechanical key, in normal operation, will turn ignition lock cylinder. Passlock(tm) sensor monitoring position of lock cylinder will relay Passlock(tm) data to Body Control Module (BCM). BCM will determine validity of Passlock(tm) data. BCM will send a password to Powertrain Control Module (PCM). When PCM receives correct password PCM allows crank relay and fuel injectors to operate normally. Passlock(tm) system requires PCM and BCM to communicate various functions in order to operate. These functions transmit over class 2 serial data line.
ADDING OR REPLACING KEYS
The ignition lock cylinder and keys do not contain any coded electronic components. Lock cylinder housing contains coded electronic components. Changing an ignition lock cylinder or adding a key is a purely mechanical process which does not affect vehicle anti-theft system. To add or replace a key, simply cut a new key to match existing one. If no keys are available, lock cylinder must be changed. To change lock cylinder, simply replace existing lock cylinder with one of same type.
Aug 24, 2020 at 1:58 PM
Avatar
DR JOE
  • MEMBER
  • 4 POSTS
Dave,

First off thank you for helping me try and figue this problem out.

Here is the problem: My wife went to start her car last Friday, nothing happened. So when I got home I removed the battery and had it check, checked okay. So then I start looking on the internet and found a couple of web site that led me to think it was the ignition switch. Well it turns out not to be the switch, so now I am looking for answers to why it still will not start.

Like I stated earlier I have checked every fuse and a few relays and nothing is coming up bad. I did find the BCM after my neighbor came over with his code reader and it said no code in the computer. But like I said he did find the BCM for me and we pulled it out and looked at it and reinstalled it and tried it again, nothing. So now I am wondering do I buy another BCM and hope that is the problem? Or do I do something else?

Joe
Aug 24, 2020 at 1:58 PM
Avatar
DENNYP
  • CERTIFIED EXPERT
  • 1,824 POSTS
The pass-lock sensor is the electronic lock cylinder part of the switch. It will come as a ignition lock cylinder kit and sensor. You can purchase it at the dealer. It will need programming when repairs are completed. It will not start until programmed.
Aug 24, 2020 at 1:58 PM
Avatar
DENNYP
  • CERTIFIED EXPERT
  • 1,824 POSTS


https://www.2carpros.com/forum/automotive_pictures/102900_1055856_1.jpg

It's the part I have circled.
Aug 24, 2020 at 1:58 PM
Avatar
DAVE H
  • CERTIFIED EXPERT
  • 13,384 POSTS
DR JOE.

Like i have been saying all along if you have replaced the part that DENNY P has circled for you then the vehicle needs to be programmed on a computer so the new part works if you have only replaced the key barrel part hen it does not need programming, but i think we then have to find out why the car did not start in the first place. I do not think i would have replaced the ignition lock without doing some other diagnostics first. please let us know the actual part you have replaced.
Aug 24, 2020 at 1:58 PM
Avatar
NAVYMAN09
  • MEMBER
  • 1 POST
i have a 2002 Impala and i was having issues with the cruise light staying on when i started it and while the light was on the blower motor would not work and the temperature cluster would not work and after about ten minutes the light would go off and everything would work fine except the cruise would only work for a while then kick off. after time the gauges would stop working for a little while then turn back on. i found a couple of websites that made me believe that it was the ignition switch. so i bought a new switch just the electrical part not key and tumbler after replacing it car would not start, the security light would come on and everything else worked normally. However, it would not turn over. so i tried the ten minute thing several times but still the security light stays on and would not turn over. if i put the old switch in it will start but still has the problems. put new switch in does not start. am i doing something wrong or is there something else i need to do?
Aug 24, 2020 at 1:58 PM
Avatar
LARRY PHIPPS
  • MEMBER
  • 1 POST
I completely broke my ignition trying to start it. Can I replace ignition with an old one from salvage yard?
Mar 13, 2021 at 10:21 AM (Merged)
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi and thanks for using 2CarPros.com. First, are you aware there is a recall on the ignition switch of this vehicle? Here is a segment of the recall:

General Motors has decided that a defect which relates to motor vehicle safety exists in all 2000-2005 model year (MY) Chevrolet Impala and Monte Carlo, 1997-2005 MY Chevrolet Malibu, 1999-2004 MY Oldsmobile Alero, 1998-2002 MY Oldsmobile Intrigue, 1999-2005 MY Pontiac Grand Am and 2004-2008 MY Pontiac Grand Prix vehicles. If the key ring is carrying added weight and the vehicle goes off road or experiences some other jarring event, it may unintentionally move the key away from the "run" position. If this occurs, engine power, power steering and power braking will be affected, increasing the risk of a crash. If the ignition switch is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury or fatality.

If the switch has already been replaced, here are the directions for removing and replacing the one in your car. The attached pictures are related to the directions which follow.


Disconnect the negative battery cable.
Remove the instrument panel (I/P) cluster trim plate.


Insert the key and turn the ignition lock cylinder to the ON/RUN position.
Using a small curved tool or an L-shaped hex wrench, depress and hold the detent on the ignition lock cylinder. Access the detent by placing the tool through the I/P opening to the right of the ignition switch. If you cannot locate the detent with the tool, lower the ignition switch away from the I/P. Refer to Ignition Switch Replacement.


Using the key as an aid, pull to remove the lock cylinder from the switch.
Remove the key from the lock cylinder.
If the cylinder does not rotate or is seized, follow the procedure in the ignition switch replacement. Refer to Ignition Switch Replacement.
INSTALLATION PROCEDURE



Code the ignition lock cylinder, if necessary. Refer to Key and Lock Cylinder Coding.
Insert the key and turn the lock cylinder to the ON/RUN position.
Position the lock cylinder to the ignition switch. Press the cylinder into place. If you turned the key slightly while removing the lock cylinder, you may have to align the white colored ignition switch rotor (1) with the lock cylinder (2). You can rotate the ignition switch rotor (1) with your finger.
Turn the key to the OFF position and remove the key.
Install the I/P cluster trim plate.
Connect the negative battery cable.
If you installed a new lock cylinder, perform the BCM theft deterrent relearn procedure.

Now and finally to answer your question. Yes, you can use a junkyard if you only replace the key cylinder. According to alldata, The ignition lock cylinder and keys do not contain any coded electronic components. The lock cylinder housing contains the coded electronic components. Changing an ignition lock cylinder or adding a key is a purely mechanical process which does not affect the vehicle theft deterrent system. To add a key, simply cut a new key to match the existing one. To change the lock cylinder, simply replace the existing lock cylinder with one of the same type.

I hope this helps. Let me know if you have other questions.

Take care,
Joe
Mar 13, 2021 at 10:21 AM (Merged)
Avatar
PHILLIP505
  • MEMBER
  • 1 POST
Hi, I am going to be replacing the ignition switch . Any special things I have to do to reprogram the key memory to the new ignition?
Mar 13, 2021 at 10:21 AM (Merged)
Avatar
JOETECHPRO
  • CERTIFIED EXPERT
  • 705 POSTS
Hey PHILLIP505,

Are you replacing the ignition cylinder barrel or the electrical part of the switch?

If replacing the barrel and/or keys you will not need to do anything with the security system.

If you replace the electrical ignition switch it includes a sensor for the PASSLOCK system.

You can do a relearn following the guide attached below.

You may need to attach a battery charger as you will have the ignition on for a while without the engine running.

Hope that helps.

Regards, Joe
Mar 13, 2021 at 10:21 AM (Merged)
Avatar
RAPAPPJR
  • MEMBER
  • 2 POSTS
Car was locked when girlfriend opened door. Car alarm went off. Upon returning, the key would no longer turn. The shifter wont come out of park. The wheel is not locked and wont lock. I removed all the framing from around the ignition switch and tried to remove the ignition switch to replace it. Two of three harnesses came off, but it appears the last one will not come off unless the key turns, releasing it. The key will not turn. So the ignition switch cannot be removed, and thus, cannot be replaced. I don't want to scrap my entire car just because the ignition switch is locked up. I don't know if its a security feature from the car alarm going off, and it locked it up, or if the ignition switch needs to be replaced. I asked AutoZone if I could bypass the ignition switch and they said no. Said there is really nothing I can do. That can't possibly be true. Can anyone help me please?
Mar 13, 2021 at 10:21 AM (Merged)
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Hello,

This sounds like the shift cable needs to be replaced because it is not pushing the interlock completely not allowing the ignition switch to be completely off. Check out these guides to help you see what is going on. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Mar 13, 2021 at 10:21 AM (Merged)
Avatar
X1X GOSER X1X
  • MEMBER
  • 1 POST
I have to replace the ignition switch in my 2001 Chevy Impala and i was hoping that you could give me some advice or the steps to the process in doing so.
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
JOETECHPRO
  • CERTIFIED EXPERT
  • 705 POSTS
Hey X1X GOSER X1X,

I have attached below the instructions to replace the ignition switch on your vehicle.

Are you replacing the switch itself or the lock barrel?

Hope that is the information you needed.

Let us know if you have any further questions.

Regards, Joe
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
JOETECHPRO
  • CERTIFIED EXPERT
  • 705 POSTS
Hey X1X GOSER X1X,

Below should be the removal instructions for all the trims you need to remove to get to the switch.

Hopefully that should give you all you need to tackle the job.

Regards, Joe
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
JOETECHPRO
  • CERTIFIED EXPERT
  • 705 POSTS
Hey PHILLIP505,

If you would like some help with your vehicle can you please start a new question?

It makes the site work more effectively if each persons question is separate, we should be able to give you the information you need.

Regards, Joe
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
JOETECHPRO
  • CERTIFIED EXPERT
  • 705 POSTS
Hey X1X GOSER X1X,

If you are replacing the electrical part of the ignition switch you may have to relearn the PASSLOCK system.

You may need to attach a battery charger as you will have the ignition on for a while without the engine running whilst doing the relearn.

Please see the information below on how to do that.

Regards, Joe
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
HAWGBOI
  • MEMBER
  • 1 POST
I've recently lost the keys to my car and was wondering how I would replace the lock cylinder without having to drill it out?
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
There is no way except to drill it out. Here are guides to help you replace the ignition lock tumbler. Can you please shoot a quick video with your phone so we can see what's going on? that would be great. You can upload it here with your response. I would get the new ignition switch from the dealer so they can code it for you please bring our VIN number. Check out the diagrams (below). Please let us know what happens.
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
ROBERTRJAMESJR
  • MEMBER
  • 1 POST
How do I replace the ignition switch? How do I get at it and how does the dash come off?
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
DENNYP
  • CERTIFIED EXPERT
  • 1,824 POSTS
Ignition and start switch replacement. Removal Procedure:


https://www.2carpros.com/forum/automotive_pictures/102900_1_1.jpg

Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnect and Connect Procedure in Engine Electrical. Remove the steering column filler panel. Refer to Steering Column Filler Replacement . Remove the knee bolster bracket. Refer to Bracket Replacement - Knee Bolster . Remove the instrument panel (I/P) cluster trim panel. Refer to Trim Plate Bezel Replacement - Instrument Panel (I/P) Cluster . Remove the ignition switch bolts. Lower the ignition switch away from the instrument carrier. Insert the key into the ignition lock cylinder. Turn the key to the ON/RUN position. Depress the transaxle park/lock cable retainer to release. Pull to remove the park/lock cable from the ignition switch. Important: The Passlock™ electrical connector cannot be removed until the lock cylinder is removed. Depress and hold the detent on the bottom of the ignition switch in order to release the ignition lock cylinder. Remove the ignition lock cylinder with the key.


https://www.2carpros.com/forum/automotive_pictures/102900_2_1.jpg

Disconnect the Passlock™ electrical connector. Disconnect the electrical connectors.


https://www.2carpros.com/forum/automotive_pictures/102900_3_1.jpg

Important: Ignition switch lock cylinder that won't rotate or is seized. Perform the following procedure if the ignition switch lock cylinder is seized or won't rotate. 12.1. Protect the immediate work area with suitable material such as clean shop towels or a clean fender cover. 12.2. Locate the surface for the ignition switch lock cylinder release button (2) on the plastic ignition switch housing and center punch a location (1) on the "rib" approximately 3/8 inch reward (toward the key entry end) from the cylinder release button. 12.3. Carefully drill a pilot hole through the plastic housing with a 1/8 inch drill bit. 12.4. Carefully drill a larger hole at the pilot location, and slightly into the ignition switch lock cylinder surface to break the release button retaining spring using a 9/32 inch drill bit. 12.5. Remove portions of the broken spring from the hole using a small suitable tool. 12.6. Grasp the ignition switch lock cylinder and remove it from the switch housing. 12.7. Remove any plastic "flash" from the drilling operation, and using compressed air blow out the ignition switch assembly. 12.8. Follow service manual procedures when cylinder cording is required. Refer to Key and Lock Cylinder Coding in General Information. Installation Procedure If the lock cylinder would not rotate or was seized, perform the following procedure: 1.1. Install the new ignition switch lock cylinder as required by rotating both the cylinder and the ignition switch to the ON position. 1.2. Push the ignition switch lock cylinder into the ignition switch housing until fully seated. 1.3. You may have to slightly depress the release button as the button passes by the 9/32-in hole previously drilled in the ignition switch housing.


https://www.2carpros.com/forum/automotive_pictures/102900_4_1.jpg

Connect the electrical connectors. Connect the Passlock™ electrical connector. Connect the park/lock cable to the ignition switch.


https://www.2carpros.com/forum/automotive_pictures/102900_5_1.jpg

Turn the key to the ON/RUN position. Install the ignition lock cylinder into the ignition switch. If you turned the key slightly while removing the lock cylinder, you may have to align the white colored ignition switch rotor (1) with the lock cylinder (2). You can rotate the ignition switch rotor (1) with your finger. Remove the key.


https://www.2carpros.com/forum/automotive_pictures/102900_6_1.jpg

Position the ignition switch to the instrument carrier. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems. Install the ignition switch bolts. Tighten Tighten the bolts to 10 N·m (89 lb in). Install the trim plate bezel to the I/P cluster. Refer to Trim Plate Bezel Replacement - Instrument Panel (I/P) Cluster . Install the knee bolster bracket. Refer to Bracket Replacement - Knee Bolster . Install the steering column filler panel. Refer to Steering Column Filler Replacement . Connect the battery ground cable. Refer to Battery Negative Cable Disconnect and Connect Procedure in Engine Electrical.
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
GRPERKO
  • MEMBER
  • 1 POST
Hello,

I have a question regarding this install. I just replaced my ignition switch on my fathers 2005 Impala due to the popular pass-lock issue and the vehicle not starting.

I purchased the ignition kit from GM, where a service tech told me i do not need to have the car re-keyed or programmed if i keep the stock tumbler and install it in the non-defective pass-lock. I have installed the ignition, everything is hooked up, and everything in the car works, but it wont start. I am wondering if this is due to the new pass-lock? i am not sure how it works with different keys and so-forth. I was also told it could also be the BCM but to try this first. So my question is, could the car not be starting due to the new pass-lock not recognizing the car, and being a programming issue, or has the problem spread to the BCM and I need to replace that too?

Thank you
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
I think the tech was not complete even if you keep the tumbler the key is what needs programming which the dealer will do when you buy the lock and key if you bring your VIN number and proof of ownership.
Mar 13, 2021 at 10:22 AM (Merged)
Avatar
JCLEVELAND8
  • MEMBER
  • 12 POSTS
I have a 2000 Impala and have been having trouble with the Passlock security system. I have just removed the ignition switch and disassembled it to clean the contacts which were blackened. When I got it back together and put the key in I get the door chimes but no other lights on the dash or any other action. Any ideas? I know it probably needs to go through the reprogram sequence but right now the ignition switch is not working. I should see dash lights when I insert the key even if it does not start?
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
So you took apart the ignition switch and cleaned it and now you don't have any power to the dash lights blower motor etc?Have you checked all the fuses to see if you blew any? Here are the instructions on how to replace the ignition switch in the diagrams below.
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
JCLEVELAND8
  • MEMBER
  • 12 POSTS
I had the battery disconnected while I did the work and I have checked fuses. I do have a multimeter.
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
Lets start by checking the solid red wire to the ignition switch it should have battery voltage to it at all times.So all the dash lights blower motor etc worked before you took the switch apart?Let me know if you have battery voltage to that solid red wire.You just have a bad ignition switch since you took it apart parts aren't made to be repaired these days we live in a throw away world.
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
JCLEVELAND8
  • MEMBER
  • 12 POSTS
Yes I do have battery volts. I did not remove the lock cylinder, all I did was remove the cover from the actual switch and clean the contacts. That is why I was asking if it could be another problem. Should I get dash lights and radio no matter what else is going on if I insert the key and turn it?
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
Yes you should have the dash lights warning lights blower motor working etc.So did the starter work when you turned the key to the start position before you cleaned the switch?Also put the key in the start position and see if you have battery voltage at the yellow wire coming out of the ignition switch.Let me know.
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
JCLEVELAND8
  • MEMBER
  • 12 POSTS
Yes the starter worked fine and there is no voltage on the yellow wire with the key turned.
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
Looks like the ignition switch isn't working correctly and needs to be replaced to start with.As you can see from the diagram i posted the red wire feeds the battery voltage into the switch and when you turn the switch to the start position battery voltage is sent thru the yellow wire which isn't happening.But the red wire has battery voltage so bad switch you could have more then one problem but getting a new switch is where we need to start.
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
JCLEVELAND8
  • MEMBER
  • 12 POSTS
Thanks for your help. I was assuming it was the switch but I wanted to get another opinion in case I was missing something. I will get one in the morning and try it.
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
Your welcome keep me posted on what you find and how it works with the new switch.
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
JCLEVELAND8
  • MEMBER
  • 12 POSTS
I installed the new switch and now I am back to my original problem of not being able to start the car because of the passlock security system. I have tried the reprogram sequence of turning the key to run and letting it sit for 10 minutes. I also did it 3 times in a row like some people say but it still will not start. Do you think it could be a bad passlock sensor? Is there any way to test this?
Mar 13, 2021 at 10:23 AM (Merged)
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
When you did the relearn procedure and did it three cycles did you make sure you waited for the security light to change status like the light was flashing and shut off or went from flashing to solid or solid to off before you did the next cycle of turning it off then trying to start it and let it sit in the position until the light changed status again before the next cycle was performed?I would also try it four cycles to see if it resets.You could have a bad pass lock sensor iam having trouble logging into are online repair data as soon as i can i will get you more info.
Mar 13, 2021 at 10:23 AM (Merged)