Question about 2001 Cadillac Catera

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2001 cadillac catera. radio, trunk release, and gas cover release are intermittent and go out at the same time. is this a fuse issue or a wiring or relay problem that might need to go to a mechanic?

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  • jesus Rojo May 11, 2010

    HI" can you tell what fuse number is the one blowing

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The problem is with the body computer; my wifes 01 lost the fuel door, trunk lid, radio, clock and sunroof functions intermittently, but all at the same time. It became really annoying reaching through the back seat into the trunk to open the trunk.

I installed a used 99' body computer, took it to the dealer, reprogrammed the computer to accept the existing radio (when you switch the computer, the radio; Bose, will be locked out) because it's married to the car through the body computer. This is the security system used to protect theft of the radio.
If you remove the radio from one car and install in to another, the radio will lock out. You need a tech II scanner to program the computer.
Dealer charged me $120 for labour which is minimum 1 hour shop time. Actual programming took only 10 minutes. That's why GM is doing so well on the car market. I have no pity for them.

Posted on Oct 06, 2009

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It could be one or all of the above. you can start by checking the fuses in the passenger compartment and then the under hood fuses. if all seems ok there then off to a reputable repair facility for further checking.

Posted on Sep 23, 2009

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1 Answer

1999 Cadillac carteria body control module location


Body Control Module, located under dashboard,
left side ( driver side), have to un assemble the
fuse cover, then move slightly other kind of carbord
or paper cover , then you can
introduce your hand, through the left side or column
and you will fill a box, some times humidity may affect
and you will have radio goes on and off, trunk will not
open so as the gas fill door will not open at all (if this
happens, you have to enter trunk via the rear seat,
pull the emergency trunk opening , then go to trunk side
open the back right side, and introduce your hand where
the gas fill door lock (solenoid) , and pull the lock slightly
back, this will unlock the door and allow you to fill some
gas,, other wise you have to turn on and off your car
unitl it works ,, This problem I have associated it with
rust formation on terminals and bad car battery , you may
need to replace the battery.

You may have it removed and check by special electronics
shop that may open and clean and re build the contactors, or replace it with the same model, it has to be the same car year, check the model,,

I have a 1999 Catera, and have experimented a lot of things..
but its a good car

Dec 02, 2014 | 1999 Cadillac Catera

1 Answer

2001 cadillac dts trunk gas lid door lock backup


These devices are on separate fuses - the fuel access door and the trunk release are on the same fuse, and the backup lights, the inside rearview mirror and park assist are on the other fuse. So, if you don't have any issues with these other devices, you have two separate problems to check. The only thing these two symptoms have in common is the wiring harness between the rear fuse block and them, so you may have a wiring problem (severed wires) there.
I would suggest first checking the fuses anyway (under the rear seat) and measuring the voltage at each of the device's connectors in the trunk. If those check out, you probably have burned out bulbs and a sticky door actuator. You have to remove the entire rear license plate bezel to get at the bulbs, and you can check the manual release on the door to see if the solenoid is ceased.

Sep 11, 2014 | 2001 Cadillac DeVille DTS

1 Answer

Cant open gas door


Fuel door and trunk issues? How about no fog lights and your radio randomly turning off. If you have any of these issues it is the k134 multifunction relay. It controls all of the above.

Jun 04, 2012 | 2000 Cadillac Catera

3 Answers

My 2000 cadillaC catera radio dont play, trunk won't open as well as fuel door wont open. What to do?


Its the K134 Multifunction Module. Its located under the drivers side dashbaord...

Mar 23, 2011 | 2001 Cadillac Catera

3 Answers

My radio, trunk and fuel door all work sometimes. Where is the Multifunction relay? I believe the part# 90494163 It is a 2000 Catera Cadillac. Thanks


K134 Multifunction relay is under the dash on the driver side. When sitting in driver seat, above your left ankle, it is located behind a cardboard panel. Replacing cures many problems with the Bose radio, sunroof, gas and trunk releases, fog lights.

Oct 28, 2010 | 2000 Cadillac Catera

1 Answer

Radio, trunk and gas door do not work


Check all fuses both inside the car and under the hood. Consult the owners manual for the location of the fuse boxes.

Otherwise, have a mechanic troubleshoot the cars electrical system.

Aug 14, 2009 | 1999 Cadillac Catera

2 Answers

Wiring diagram for cadillac catera 2001 need to download free diagram radio and stero shut off occasionally which also locks trunk and fuel door


It is the BCM (Body control module). The radio is married to it via the serial number. You need to replace the module (lower right kick area, pass side in front of front door, behind plastic...aluminum box), and have it programmed to your car through a Tech 2 diag system.....dealer...this unit controls just about everything apart from the brakes, engine and tranny which all have their own computer. You probably have issues with the sun roof if you have this option.

Jul 16, 2009 | 2001 Cadillac Catera

1 Answer

1999 cadillac catera - the radio works sometimes and when it does not work the trunk and gas door will not work what could be causing this


most likely all three are on the same fuse try replacing the fuse if still doing same thing then you may have a short in the fuse box

Jul 09, 2009 | 2001 Cadillac Catera

1 Answer

Radio, fuel door, trunk intermittently work and suddenly dont work


The body computer is defective. Buy a used one, have dealer program it.

Jun 18, 2009 | 2001 Cadillac Catera

4 Answers

Gas tank won't open, trunk won't open, radio stopped working, left tail lamp won't work


It's the body control module. It's located under the dash to the left of the steering column. I had same problem, went to the junk yard and bought one and the problem went away. Dealer wants $600.00-700.00 for the BCM, I paid $30.00

May 30, 2009 | 2001 Cadillac Catera

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