05 Trailblazer passlock issue!!!!!! - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > General

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  #1  
Old 09-28-2012, 03:00 PM
Dj2131994 Dj2131994 is offline
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2005 Chevy TrailBlazer LT
Superior Blue Metallic 4.2L I6 4X4
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05 Trailblazer passlock issue!!!!!!

Ok...im going to short story this...tried to star my truck...all lights bells and whistles worm but nothing with the key when tryjng to start. Checked battery connectiins and voltage, checked ALL fuses, check starter voltage, checked ignition switch...voltage in and out , replaced starter relay. So, in addition when i try and start the car and lock symbol come on...no blinking just stays lit. Never goes off unless key is removed. I have read that you can bypass or trick the system into thinking the "correct" key is in the ignition but no real directions..HELP!!!!!
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  #2  
Old 09-28-2012, 03:27 PM
Dj2131994 Dj2131994 is offline
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2005 Chevy TrailBlazer LT
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Ok..still googling and apparently there is a passlock sensor i the ignition switch? Could I still get good readings with the sensor it bad?
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Old 09-28-2012, 10:43 PM
Dj2131994 Dj2131994 is offline
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2005 Chevy TrailBlazer LT
Superior Blue Metallic 4.2L I6 4X4
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Location: Edgewood,md
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Replaced the ignition housing with passlock sensor..no go...wth!!!!
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  #4  
Old 09-29-2012, 10:43 AM
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ylab ylab is offline
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2002 GMC Envoy SLT
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Have you tried the passlock relearn procedure?

30 Minute Learn Procedure
Tools Required: None
1.Turn ON the ignition, with the engine OFF.
2.Attempt to start the engine, then release the key to ON (vehicle will not start).
3.Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
4.Turn OFF the ignition, and wait 5 seconds .
5.Repeat steps 1 through 4, 2 more times for a total of 3 cycles/30 minutes. The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK. IMPORTANT: The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
6.Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password.
7.With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles.
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Old 10-02-2012, 10:09 PM
Dj2131994 Dj2131994 is offline
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2005 Chevy TrailBlazer LT
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Unfortunatly yes I did...I only got the flashing security after I replaced the ignition housing and ignition switch. No go...grrrrr...now the light just stays on along with the battery light and cruise control light...i am so confused...i have checked all connections, grounds etc....
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  #6  
Old 08-07-2013, 01:01 PM
kjilla kjilla is offline
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2007 Chevy TrailBlazer SS (1SS)
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passlock

hey guys im new....I had the same problem and unhooked poss and neg batt cable and the light was steady burn and it went off.............spoke too soon came back on#@#@#$#%$$^&%
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