Question about 2003 Chevrolet Tahoe

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Can you help me figure out why all the doors on my 2003 Tahoe lock properly but the right passenger which all of the sudden reversed pattern? In other words, when I put it in gear they all lock but th

Can you help me figure out why all the doors on my 2003 Tahoe lock properly but the right passenger which all of the sudden reversed pattern? In other words, when I put it in gear they all lock but the passenger unlocks and then in Park, they all unlock but the passenger then locks? by the way the keyfab remote quit working simultaneously and when I lock it manually a warning sound first but the second click will lock all the doors

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  • Chevrolet Master
  • 14,585 Answers

Yeah. your BCM(body control module) has decided it doesn't want to work right. Since you can double click it and it works, leads to an internal problem with the BCM. Personally, I would live with it. New or rebuilt BCM's are cheap and then you have to have them programmed..$300+

Posted on Nov 12, 2014

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: power locks not working right

Hey, this might work.....get in truck, close doors, put key in ignition in lock position.....hold down the door lock button on driver side door control and wait for the lock control to be displayed on the information screen(odometer read-out).....it should say like lock 1, lock 2, lock 3, lock 4.....or something, I always reset mine to LOCK 1, to do this hold the odometer reset button on dash for a sec or two til it changes settings, then release, repeat till you get to LOCK 1, then quickly press and release odometer reset button to exit program, this is the function to lock doors over 15 mph and when out of park and to unlock doors when returned to park......yours' might be set to another function number....try it out, let me know if this helps.........good luck!

Posted on Mar 06, 2009

  • 68 Answers

SOURCE: 2008 chevy malibu. cannot unlock doors from dirver

Intermittent door ajar switch contacts.

Posted on Mar 05, 2010

emissionwiz
  • 75797 Answers

SOURCE: 2007 Cehvy Tahoe, Front pass

Hello
The power door locks and indeed most all power operated devices in the car are controlled by a central electronic module called the BCM (Body Control Module), the system is capable of "self testing" its functions and then it reports back to the scanner what problems were found with the systems it controls in the form of a body fault code, this test is run using a GM Tech II electronic scanner, you will need to have this test done to determine the reason for the lock problem. Once it is diagnosed to save money you can then do the repair your self unless the BCM is defective, in that case the new module must be programmed for your truck or the security system will not allow you to start the engine

Posted on Feb 02, 2011

  • 40 Answers

SOURCE: Both Power Locks Lock But Wont Unlock. Remote will unlock the doors

If the remote key fob locks and unlocks the doors then the problem is more than likely the power lock switches, this is a common problem on the Venture Van.

Posted on Mar 03, 2013

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1 Answer

2005 Chevrolet Tahoe Power Windows and Power Locks not working.


The power windows an power locks are controlled by a module , DDM - driver door module . As far as the locks locking when you put the vehicle into reverse an unlocking when you put the vehicle into park , that's how there are suppose to work , automatic lock an unlock feature . When you put the vehicle into any gear from park the locks should lock . Did she hit window lockout function ?

The power door lock system consists of the following components:
• The driver door module (DDM)
• The passenger door module (PDM)
• The body control module (BCM)
• The driver information center (DIC)
• The rear door lock switch
• The door lock relay
• The door unlock relay
• The liftgate lock relay--utility vehicles with liftgate only
• The reversible door lock actuators in each of the doors and liftgate
• LOCKS 20A fuse (rear lock/unlock relay supply voltage)
• ECC 10A fuse (liftgate lock relay supply voltage .

Programmable Automatic Door Locks
The automatic door lock feature can be programmed to control the door lock system. The automatic door lock feature is factory programmed to have all doors lock and unlock. For detailed instructions on programming the automatic door locks, refer to Vehicle Personalization in Personalization.
When the automatic door lock feature is programmed to control the door lock system, the driver door module (DDM), passenger door module (PDM) and body control module (BCM) will lock the vehicle doors if the following inputs are true:
• Ignition 1 input is active.
• All door jamb switch inputs are inactive.
• Cargo door or liftgate/liftglass ajar inputs are inactive.
• Transmission is shifted out of park.
This automatic door lock function will only occur once per ignition cycle unless, a door jamb switch input changes state to active and back to inactive. Then the DDM, PDM and BCM will lock all doors again.
Once the automatic door lock feature has locked the doors, the BCM will then unlock all the doors when the transmission is shifted into park.
Driver, Passenger and Cargo Door Lock System Operation
The front power door lock switches are integral components of the driver door module (DDM) and passenger door module (PDM). The switches are two position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDM or PDM. The DDM or PDM monitors these inputs and sends a Class 2 message indicating a change in the switch's respective position. Modules which activate the power door lock motors receive the Class 2 message and activate the motor in the appropriate direction to lock or unlock the vehicle's doors and liftgate. The rear door lock switch provides a lock and unlock signal to the body control module (BCM). The BCM upon receipt of a lock or unlock signal will control the rear door lock relays and also send a Class 2 message to the DDM and PDM to perform the appropriate function.
The modules which activate the power lock motors are:
• The DDM (driver door lock actuator).
• The PDM (passenger front door lock actuator).
• The BCM (both rear door lock actuators and cargo door/liftgate).
The DDM and PDM are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other causing the doors to lock or unlock.
The rear passenger and cargo doors differ slightly in that they use lock and unlock relays. The relays supply and coil sides receive a constant voltage through the battery voltage supply circuit. The normally closed contacts are connected to ground and the control side is connected to the BCM. Once a door lock or unlock request has been received by the BCM, the BCM will ground the control side of the appropriate relay. This energizes the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.

Mar 16, 2017 | 2005 Chevrolet Tahoe

1 Answer

Gmc yukon right door not working


Your solution is a front passenger door module (FPDM),before you replace it check for open fuse in the engine junction fuse box,I dont know the fuse number but it is a 25 amp fuse.8_15_2012_6_16_45_am.gif

Aug 15, 2012 | 2003 GMC Yukon XL

1 Answer

I have a 2003 Hyundai Elantra. The remote locks the doors but sometimes it won't unlock the doors. I have to go to the passenger side, press lock on the remote, then press unlock (I can hear the 'clicks'...


Possible issue with the remote controller unit - main board or sub assemblies. The intermittent behavior seems to indicate that the board is erratic to detect at the same time the individual locks work at times.
So make sure all the connectors to the door and to the main board controller are tight. You can remove the main unit and check for any loose connections or clogging, specially water in all the door units or in main unit. If so dry and test.
Otherwise the main unit is a suspect.

Mar 12, 2011 | 2001 Hyundai Elantra

1 Answer

When i manually lock my doors only the two front doors lock. The back passenger doors and the rear door does not lock???? wat can be wrong


without a good look its difficult to say ,but i would be inclined to check for a feed first ,then woiork backwards ,could be a multiplug come loose behind the kicker plate side panel ,now which side driver or passenge i wouldnt know

Jan 07, 2011 | 2003 Chevrolet Tahoe

1 Answer

2003 chevrolet tahoe right front door and window does not work


It almost sounds like the wire harness from the door to the body has become undone. There is a rubber tube you can see when you ope the door where the hinges are, in that tube is there the wires run through. Try playing with that and see if that will fix your problem. if not that's it's deeper in the body and most of the time it'sright behind the kicker panel by the corner there. Good luck

Apr 08, 2009 | 2003 Chevrolet Tahoe

1 Answer

No power on front passenger door


Check the connections between the door and the body, not the panel on the door. If a wire was pinched between the door and body that could be the problem. There should be a boot between door and body, peal that back and look for damaged or grounded wires. Repair as necessary.

Joel

Feb 20, 2009 | 2003 Chevrolet Tahoe

1 Answer

Passenger door mirror


technial this as its controlled through memory switches and reverse switch signalling hence the movement when in reverse and memory seat settings,this problem requires specialist/plug in diagnostics.

Oct 07, 2008 | 2003 BMW 330

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