C5 not starting-Please help
Thread Starter
Burning Brakes
Joined: Sep 2008
Posts: 826
Likes: 12
From: Phoenix, AZ
C5 not starting-Please help
Hey there,
98 C5. I just finished changing the A/C compressor and I did the double din stereo and subwoofers at the same time while waiting for parts. After completion I went to start the car and I got nothing. The dash did the full sweep, but no starter crank. I determined the battery to be weak and got a new battery. When I installed the battery it started, however I dropped something under the battery tray.....Duh, and I had to pull the battery out. When I installed it again same problem. then it is started to say the infamous "Pull Key and wait 10 seconds". I have already done the steering bypass.
So I ordered the LC5 wire bypass and it solved the "Pull Key" problem, but still won't start.
It seem like it would be the battery, but it's new and I verified it's getting power.
Side note: the windows are rolling up and down without the key in all of a sudden.....
Any help is appreciated......
98 C5. I just finished changing the A/C compressor and I did the double din stereo and subwoofers at the same time while waiting for parts. After completion I went to start the car and I got nothing. The dash did the full sweep, but no starter crank. I determined the battery to be weak and got a new battery. When I installed the battery it started, however I dropped something under the battery tray.....Duh, and I had to pull the battery out. When I installed it again same problem. then it is started to say the infamous "Pull Key and wait 10 seconds". I have already done the steering bypass.
So I ordered the LC5 wire bypass and it solved the "Pull Key" problem, but still won't start.
It seem like it would be the battery, but it's new and I verified it's getting power.
Side note: the windows are rolling up and down without the key in all of a sudden.....
Any help is appreciated......
Melting Slicks
Joined: Sep 2008
Posts: 3,138
Likes: 802
From: Espanola New Mexico
The windows rolling down without the key could be an indication that the BCM is not working correctly. Have you verified that the TDR is being energized everytime the key is turned to the start position. Have you pulled the codes from the DIC it might help pin point the problem.
Thread Starter
Burning Brakes
Joined: Sep 2008
Posts: 826
Likes: 12
From: Phoenix, AZ
Codes
The windows rolling down without the key could be an indication that the BCM is not working correctly. Have you verified that the TDR is being energized everytime the key is turned to the start position. Have you pulled the codes from the DIC it might help pin point the problem.
Last edited by C5 Diag; Aug 7, 2021 at 10:17 PM.
Melting Slicks
Joined: Jul 2019
Posts: 2,004
Likes: 848
From: FL Keys
2025 C5 of the Year Finalist - Unmodified
Not trying to be a smartass here but since this problem just happened after you were wrenching under the hood and dash, first thing I would do is retrace all of my work to make sure nothing was disturbed unintentionally. It happens to all of us a some point. Good luck.
Thread Starter
Burning Brakes
Joined: Sep 2008
Posts: 826
Likes: 12
From: Phoenix, AZ
Dash
[QUOTE=sonicss33;1603842503]Not trying to be a smartass here but since this problem just happened after you were wrenching under the hood and dash, first thing I would do is retrace all of my work to make sure nothing was disturbed unintentionally. It happens to all of us a some point. Good luck.[/QU
I totally agree. I did go back under the dash and center console and look around. I unfortunately didn't find anything. Also, when I do a stereo, I purposely run my wires directly to the battery rather than splicing any
wires for that reason.
I totally agree. I did go back under the dash and center console and look around. I unfortunately didn't find anything. Also, when I do a stereo, I purposely run my wires directly to the battery rather than splicing any
wires for that reason.
