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Old Mar 5, 2016 | 09:33 AM
  #1  
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Default First c5, question

Hi guys I recently picked up a 1998 c5 for a really good deal. The only thing wrong with it is the a/c system will not turn on.

Problem number 2 is the trunk won't open. The button beside the wheel does nothing. The only way I can open it is by crawling back there and yanking the cables. I checked the fuses for both and they looked ok but I replaced them anyway.

Any help would be appreciated.
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Old Mar 5, 2016 | 09:39 AM
  #2  
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What climate control option do you have? Do you have the base setup with just three ***** or do you have the upgrade "dual climate" mode with the screen in the middle and **** for driver and passenger?

For the trunk, do you have a targa fastback or convertible? If you have checked fuse #26 then you will need to check the trunk release relay. Also, the reason why I ask body style is because after you have checked those two if you own a convertible you will want to make sure the toneau cover is closing properly. If it does not close fully, it will prevent the trunk release button from operating as a safety mechanism.
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Old Mar 5, 2016 | 09:44 AM
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Originally Posted by Velocity_Vette
What climate control option do you have? Do you have the base setup with just three ***** or do you have the upgrade "dual climate" mode with the screen in the middle and **** for driver and passenger?

For the trunk, do you have a targa fastback or convertible? If you have checked fuse #26 then you will need to check the trunk release relay. Also, the reason why I ask body style is because after you have checked those two if you own a convertible you will want to make sure the toneau cover is closing properly. If it does not close fully, it will prevent the trunk release button from operating as a safety mechanism.
Base a/c module, and fast back
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Old Mar 5, 2016 | 09:46 AM
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Originally Posted by moekluse
Base a/c module, and fast back
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Old Mar 5, 2016 | 10:04 AM
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Yeah for the trunk you will probably want to check operation of the trunk release relay.

For the HVAC, the HVAC system in the C5 will throw a code for in-operation. You can check the codes on the C5 without a code reader utilizing the Driver Information Center's (DIC) diagnostic mode. Below is a video explaining how to retrieve codes being thrown. Check that first to see if a code for HVAC in-op is being thrown.


Last edited by Velocity_Vette; Mar 5, 2016 at 10:05 AM.
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Old Mar 5, 2016 | 10:34 AM
  #6  
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Will check out soon I appreciate the help
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Old Mar 5, 2016 | 11:27 AM
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Ok, so these are the codes I have found:
P1545
C1241
B2527
B2262
B2264
B2263
B2265

I will go to autozone later today to try to find a relay for the trunk and hvac systems.
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Old Mar 5, 2016 | 05:20 PM
  #8  
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Originally Posted by 8VETTE7
Also check fuse #26 in the passenger foot well fuse box for problem #2.
Will check it out as soon as I get home, thanks as well
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Old Mar 6, 2016 | 06:49 AM
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Always tell us what fuses you checked or replaced and in which fuse box. The info on the car can be misleading.

The relay for the truck is #39 in the I/P fuse box.


Mr. Sam
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Old Mar 6, 2016 | 08:35 AM
  #10  
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Originally Posted by dadaroo
Always tell us what fuses you checked or replaced and in which fuse box. The info on the car can be misleading.

The relay for the truck is #39 in the I/P fuse box.


Mr. Sam
I checked and replaced everything labeled hvac and trunk in both fuse boxes. But I have yet to check the relays
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Old Mar 6, 2016 | 10:31 AM
  #11  
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Originally Posted by moekluse
I checked and replaced everything labeled hvac and trunk in both fuse boxes. But I have yet to check the relays
Ok so I checked every fuse and none were blown but I replaced a few anyways. As for the trunk relay, I swapped it out and it is still not opening.
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