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Old Aug 28, 2018 | 01:56 PM
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From: Acworth GA
Default C5 no start

I have searched and tried several things, but no answers. I started to get the pull key and wait message. It progressively got worse. Now I have the column lock fault associated with it also. The car will start and run for two seconds then shut off. Won’t restart until you pull the key and re-insert Things I have tried.
Battery
LMC-5
cleaned the grounds
cleaned Ignition switch
juppered theft control relay.
Ideas?

Last edited by Etz; Aug 28, 2018 at 01:56 PM.
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Old Aug 28, 2018 | 04:37 PM
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Did you do the brown wire mod with the LMC5?
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Old Aug 28, 2018 | 04:48 PM
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Originally Posted by pjdbm
Did you do the brown wire mod with the LMC5?
Oh, yeah. This one is critical.
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Old Aug 28, 2018 | 05:12 PM
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Did you remove and clean the ignition switch contact block not just spray cleaner into the ignition switch, need more information on your c5, manual or automatic, and year.. Some model year cars also need what is called the brown wire mod. Repost with this information and more forum members can help you figure out your problem
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Old Aug 29, 2018 | 07:23 AM
  #5  
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Default ,

Originally Posted by billschroeder5842
Oh, yeah. This one is critical.
I was told by LMC-5 that the “brown wire” mod wasn’t applicable to a 98 Auto.

Last edited by Etz; Sep 2, 2018 at 07:49 AM.
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Old Aug 29, 2018 | 07:45 AM
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I have a 99 auto and the car was perfect, no issues.
I installed the LMC5 as a precautionary and at first, I did NOT do the brown wire.
Right after completion and doing the test, I believe it was to cycle the key on and off 10 times in a row. The pull key error came up, I went back and installed the brown wire and no problems since, over a year now.
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Old Sep 13, 2018 | 09:25 PM
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Tried a BCM relearn procedure, no help.
Finally able to pull codes..
PCM 1571
RTD 1780
RTD 1790
BCM 2592
BCM 2723
HVAC B0361
HVAC B0363
HVAC B0441
LDCM B2282
LDCM U1064
RDCM 1064
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Old Sep 14, 2018 | 08:44 AM
  #8  
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Might want to try that again and follow these instructions I found above, a little closer.
Originally Posted by 8VETTE7
Post ALL the codes including the H or C or HC after each 5 character code. List the codes under the sensor they show with. ie 10 - PCM or 28 - TCS or 40 - BCM ..... etc .....

If any sensor(s) have NO COMM next to them post that also.
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