Ignition Switch Help

[mistere83]

Had to take my ignition switch out of my 04 sierra 1500 to remove the harness for a remote start. when I put the switch back in the car will not start. when the key is turned the display for the oddometer and the gear as well as the battery light are the only things that come on. no radio or any other displays. any help would be greatly appreciated as until I get this fixed I have no car and school starts next week.

[minibike132]

I'm giving this a bump without much help. If someone wants to give it out switch replacement is doc#1897765. In any case the doc isn't very helpful unless you have been through it. It kind of sounds like you might have gotten the switch in the wrong position. This usually works for me, pull the switch out and there are teeth on the top, if you rotate it you can feel the clicks in the different positions (off, accessory, run, then push more and you can feel the spring of the start position. If you go through all these and everything still reacts incorrectly then you have a wiring issue. If you rotate through and all operates normally you installed the switch with the gears in the wrong position. If that is the case I usually turn the key to run and with switch in hand push it to crank and let it return to run on it's own then install switch and cross fingers. It can take a few tries to get them lined up if you are off you may or may not see the problem it can be extreme like you have and nothing works or you think everything works and you have the switch slightly on even when off, this will draw battery down. I hope this helps.

[jrrod2004]

Here is the doc, hope it helps:

 

 

 

 

 

 

 

Document ID# 1897765

 

 

 

 

Ignition and Start Switch Replacement

 

Tools Required

J-42759 Ignition Switch Connector Release Tool

 

<A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1897765&evc=numSrch#ss1-1897765">

Removal Procedure

1. 
   <LI type=1>Disconnect the negative battery cable. Refer to

Battery Negative Cable Disconnection and Connection . Caution: Refer to SIR Caution in Cautions and Notices.
 
<LI type=1>Disable the SIR system. Refer to SIR Disabling and Enabling . <LI type=1>Remove the hush and knee bolster. Refer to Knee Bolster Replacement . <LI type=1>Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement . <LI type=1>Disconnect the passlock and key buzzer from the lock cylinder housing.

 
<LI type=1>Insert J-42759 into the lock cylinder housing to release the tabs on the ignition switch. <LI type=1>Pull the ignition switch out of the lock cylinder housing.
Disconnect the connector from the ignition switch.

<A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1897765&evc=numSrch#ss2-1897765">

Installation Procedure

1. 
   
    
   Important: The gears between the ignition switch and the lock cylinder housing must be in the correct position. Failure to do so will cause a misalignment of the gears in the ignition switch and the lock cylinder housing, which may result in a NO START or BATTERY DRAIN.
    
   <LI type=1>Verify the alignment of the gear (1) in the ignition switch (2). If gear (1) is not in position shown, turn gear in ignition switch (2) until you reach the correct position. <LI type=1>Connect the connector to the ignition switch.
   
    
   <LI type=1>Insert the ignition switch into the lock cylinder housing. The tabs (2) on the ignition switch MUST be seated inside the lock cylinder housing (1) for proper installation. <LI type=1>Connect the passlock and key buzzer into the lock housing. <LI type=1>Install the steering column trim covers. Refer to

Steering Column Trim Covers Replacement . <LI type=1>Install the hush and knee bolster. Refer to Knee Bolster Replacement . <LI type=1>Enable the SIR system. Refer to SIR Disabling and Enabling .
Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

 

Document ID# 1897765

[minibike132]

K if you look at that in the second picture of the document you can see the large space in the gear that should be alligned as in the picture when the key is off.