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Trailblazer ss p1682


nuttinfas

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My wife was out cleaning her tb today, Left the key on for an hour while cleaning. After shes done she goes to start it and it wont. She puts the battery charger on it for 20min and it starts right up. Check engine light came on though. I had her drive to adavance thinking its the battery and get code p1682. I did research and it said ignition switch. How hard is it too change? Could it still be the battery. I came home and now the check engine lights not on. Could the battery just have died and needed recharged? Its got nav, rear dvd, bose, and power everything if that helps. Edited by nuttinfas
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Ignition and Start Switch Replacement

 

Tools Required

 

J-42759 Ignition Switch Connector Release Tool(not required, you can use a screwdriver to push in the tabs)

 

Removal Procedure

 

1.Disconnect the negative battery cable. Caution: Refer to Restraint System Service Precautions.

2.Disable the SIR system. Refer to SIR Disabling and Enabling.

3.Remove the hush and knee bolster.

4.Remove the steering column trim covers.

5.With the key installed, turn the key to the RUN position

6.Install an allen wrench into the hole on top of the lock cylinder housing. Push down on the allen wrench to release the tab on the lock cylinder inside the lock cylinder housing.

http://i97.photobucket.com/albums/l238/branndonw/TBSSowners/1.gif

 

7.Slide the lock cylinder out of the lock cylinder housing.

http://i97.photobucket.com/albums/l238/branndonw/TBSSowners/2.gif

 

8.Disconnect the passlock and key buzzer from the lock cylinder housing.

9.Insert J-42759 (2 small screwdrivers work just fine) into the lock cylinder housing to release the tabs on the ignition switch.

10.Pull the ignition switch out of the lock cylinder housing.

11.Disconnect the connector from the ignition switch

http://i97.photobucket.com/albums/l238/branndonw/TBSSowners/3.gif

 

 

Installation Procedure

 

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.

 

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.

http://i97.photobucket.com/albums/l238/branndonw/TBSSowners/4.gif

 

Important: In order to reach a stop while rotating the lock cylinder housing gear you MUST push and hold in the solenoid on the electric park lock.

 

2.Use a screwdriver to rotate the lock cylinder housing gear counterclockwise until it hits a stop.

3.Connect the connector to the ignition switch.

http://i97.photobucket.com/albums/l238/branndonw/TBSSowners/5.gif

 

4.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.

http://i97.photobucket.com/albums/l238/branndonw/TBSSowners/6.gif

 

5.Use a screwdriver to rotate the lock cylinder housing gear clockwise to the START position - allowing it to spring return into the RUN position.

http://i97.photobucket.com/albums/l238/branndonw/TBSSowners/7.gif

 

6.Align the lock cylinder and install the lock cylinder into the lock cylinder housing.

7.Connect the passlock and key buzzer into the lock housing.

http://i97.photobucket.com/albums/l238/branndonw/TBSSowners/8.gif

 

8.Install the steering column trim covers.

9.Install the hush and knee bolster.

10.Enable the SIR system. Refer to SIR Disabling and Enabling.

11.Connect the negative battery cable.

 

Refer to post #15 for real pics if necessary.

http://www.tbssowners.com/forums/showthread.php?t=50580

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The light may have set due to low battery voltage when she turned the key over to start it and the battery was dead.

 

If you are not familiar with CEL's when the light is on it is a current code, since your light is off it is no longer a "current code" and is then retained in history. For the light to go off the computer has to re-check the parameter for the code and apparently it has passed thus shutting the light off.

 

I would just drive it at this point and worry about it if the light comes back on. The description for the code reads something like "ignition circuit". Don't just search for a fix and dive into it when it may not be the correct fix.

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