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2004 rendezvous electeical

Hey I have a 2004 rendezvous and the gauges and lights go out while driving. Everyone has told me it was the bcm so I've replaced it and brought it to the dealer to get reprogrammed and $400 later its still doing the same thing. Is there another module that controls all this? Thanks

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  • Cars & Trucks Expert
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Yes, it has an engine management unit

Posted on Jan 02, 2014

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Posted on Jan 02, 2017

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SOURCE: 2004 Buick Rendezvous AWD Light Stays On

Our 2002 did the same thing. Easy cheap fix! Pull the wheel off and check the wiring that goes to the wheel sensor. You will find after removing a few inches of wrap, a broken wire or two. This could be on either wheel, so check both. Fix the wires back up and you are good to go. Hope this helps!

Posted on Aug 01, 2008

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SOURCE: DISABLING SERVICE RIDE CONTROL via REPROGRAMMED BCM

bottom of sterring colum under under trim panel

Posted on Jul 19, 2009

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SOURCE: 1997 Sunfire won't start. Anti-theft light flashing

1997 Sunfire starting problem.Car starts right up every time but immediately shuts down, after 1 + seconds of running, during this time the anti theft light is flashing until 5 to 20 attempts then the car starts and runs fine till it sits awhile. is there some fuel systems shutdown device that can be reset? this Vehicle is Manuel most everything no power locks or windows.

Posted on Aug 08, 2009

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Hi, how do I resolve an error code B3857 in a 2004 Buick Rendezvous 3.6L engine? Thanks!


DTC B3857 Circuit Description
The body control module (BCM) monitors the high beam headlamp signal circuit by verifying the high beam input.
Causes possible BCM problem.

Nov 22, 2016 | 2004 Buick Rendezvous

1 Answer

Reverse lights stay on in drive 2004 buick rendezvous cxl


Backup Lamps
The TURN SIG fuse in the console fuse block supplies battery positive voltage to park neutral position switch. When the gear selector lever is in the REVERSE position, power is supplied to both of the backup lamps. The backup lamps are grounded at G401 and G402.
Do you know what DTC'S - diagnostic trouble codes are ?
DTC B2552
The body control module (BCM) controls the backup lamp relay. The BCM grounds the backup lamp relay control circuit energizing the backup lamp relay. The BCM connects directly to the center console fuse block with no external wiring between them.
DTC B2553
The body control module (BCM) controls the backup lamp relay. The BCM grounds the backup lamps relay control circuit energizing the backup lamp relay. The BCM connects directly to the center console fuse block with no external wiring between them.
Backup Lamps Always On
  1. Turn ON the ignition.
  2. Shift the gear selector lever to the REVERSE position and then to the PARK position.
Do the backup lamps turn on in REVERSE and turn off in PARK?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3

3

Remove the backup lamps relay.
Do the backup lamps turn OFF?
Go to Step 5
Go to Step 4

4

Repair a short in the backup lamps relay switched battery positive voltage supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Check the back-up lamps relay #45 in the center console fuse/relay box .
Fuse Block - Center Console
Inside of console, behind the right console access panel

Check

Jun 11, 2016 | 2004 Buick Rendezvous

1 Answer

Door locks on a 2004 Rendezvous


Sound like you missing a ground somewhere,Only in park,The park signal is in the instrument cluster,The goes to the BCM, go to the engine juction fuse box check fuses listed as GATE REL this is 20 amps,then check IPMDL fuse this is10 amps. , Then check the BCM D fuse this is the 25 amp fuse it is located in the center console or the floor, If every thing is good you can try a reflash of the BCM.

Mar 06, 2012 | 2004 Buick Rendezvous

1 Answer

Buick Rendezvous 2002 need codes?


the BCM needs to be programmed to operate the computer. a GM techII is now required to calibrate BCM to airbag, stereo, keyless entry, and control pcm data. This is required to make it all work. a gm service should have it done within an hour or less just call and ask them how much it would be to program new BCM. it might cost @$75 to $125 but it is needed, to allow the BCM to work properly.

Sep 10, 2009 | 2002 Buick Rendezvous

1 Answer

Security light on


Several GM products, including the Chevrolet Impala and Malibu, the Oldsmobile Alero, the Pontiac Grand Prix, and Saturn Ion, have issues with the Security light coming on. This is many times an indication of a failing Body Control Module (BCM). Initially, the Security light will come on then go off, progressing to a constant on light, before the car will refuse to start. Other symptoms may include erratic action of electronics, a clicking sound coming from the glove box, and the air conditioning failing to blow cold air. I recommend a shop that specializes in the electronic systems of vehicles to diagnosis and make the necessary repairs. They should keep the car until they replicate the symptoms described. A new BCM from GM should cost about $230; plan on another $200 for them to diagnose the problem, replace the unit, and program the new unit. The dealers quote between $700 and $1,100 for the same repair. My experience and the experiences I have read on the internet, indicate the new BCM should last only about a year.

Aug 03, 2009 | 2004 Buick Rendezvous

1 Answer

Security Light on and gauges now not working


has anything been done recently to car. sounds like you have a short either burnt up wiring on the power side posible fuse block under dash, or wiring going to your security module,

Aug 03, 2009 | 2004 Buick Rendezvous

1 Answer

My 2004 grand cherokee overland oil pressure gauge does not regis


must be oil in engine after 300 miles and it did not seize up,check elect. connection at oil pressure sending unit,if ok,check unit itself!

Mar 19, 2009 | 2004 Jeep Grand Cherokee

2 Answers

Gas gauge problems with 2004 Buick Rendezvous


No, there is not a fuse for this. Unfortunately, you have a bad sending unit. In order to replace the sending unit you have to drop the gas tank. Sooo............drive it more to get rid of all of that gas and it will be easier to put back up.
please remember to rate this solution.

Feb 14, 2009 | 2004 Buick Rendezvous

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