Question about 1999 GMC Suburban

2 Answers

Power Door Lock Problem

Power door locks work fine from remote control (keyless FOB). They do not work from power buttons on either drivers or passengers door. This includes lock and unlock. Rear cargo switch does nothing either. Lock motors/actuators obviously work. No blown fuses. Not sure how/if can troubleshoot door switches. All other accessories work - mirrors, windows, seats, lighter sockets (all of em), wipers, washers, radio, etc.

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  • chrisc048 Aug 09, 2008

    I have the exact same problem. Key FOB works the interior lock buttons don't. Anybody?

    Also the driver side rear door window or door lock don't work?

  • cacheturtle Dec 31, 2008

    I have a 99 Suburban and I just replaced the door handles on both front doors and I tried to clean the locks. The interior locks still do not work but the keyless entry still locks and unlocks. I have not tried the rear lock but I assume it will not work either. Any suggestions

  • Anonymous Jan 10, 2009

    99' same problem!

  • Anonymous Jan 11, 2009

    The last post by maddog1321 was exactly what I had with my right rear door. The electric locks would not lock and unlock, and you almost couldn't do it manually without my feeling I was about to break something. I took the door panel off, oiled everything and got no relief. Finally, I saw the above post and drilled out the aft-most pop-rivet. THE WINDOW WORKED PERFECTLY! I didn't drill out the forward (closest to the handle) pop-rivet and put a new pop-rivet in place of the one I drilled out. I then reinstalled everything and the locks work like new.

  • drud Jan 25, 2009

    I have the exact same problem as Rabbit86. The power door locks work fine from the remote control (keyless FOB) but will not work from the rocker switches on the driver's, passenger's, or cargo door. This includes lock and unlock. No blown fuses. All other accessories work fine. I've gone through the factory service manuals but can't find a location in the wiring schematics that would explain why the FOBs work but not the door lock switches. Any help would be appreciated.

  • Anonymous May 19, 2009

    power locks work by remote only

  • chris phillips Jun 14, 2013

    i have 03 gm and passenger door is dead .nothing works in it locks, mirrior, signal, window,light,nothing,changed pass switch ganna change driver but if not that im out of ideas

  • Anonymous Mar 25, 2014

    all power windows are inoperative and the central locking light on the door button has stopped flashing.I`ve checked all large fuses including fuse 38 but no blown fuse has been found. any other ideas or is it O/S door strip?

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The last post by maddog1321 was exactly what I had with my right rear door. The electric locks would not lock and unlock, and you almost couldn't do it manually without my feeling I was about to break something. I took the door panel off, oiled everything and got no relief. Finally, I saw the above post and drilled out the aft-most pop-rivet. THE WINDOW WORKED PERFECTLY! I didn't drill out the forward (closest to the handle) pop-rivet because I wanted to do one at a time so the solenoid would not fall out of place. I then put a new pop-rivet in place of the one I drilled out. I then reinstalled everything and the locks work like new.

Posted on Jan 11, 2009

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I have has my door panel off and realized that if the window switch becomes loose or falls off this will prevent the door switches from working. As far as the back window and lock. Same problem same problem on mine. The rivet that holds the actuator for the lock corrodes and the actuator binds in the window mechanism. Not easy to fix but fixable.

Posted on Aug 25, 2008

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1 Answer

2003 crown vic keyfob only works with ignition in run position .keyless entry and door locks work fine.even tried new keyfob.no change


The keyless entry system consists of the following components:
  • driver door module (DDM)
  • keyless entry transmitter
  • keyless entry keypad
The driver door module (DDM) receives inputs from the digital transmission range (TR) sensor, ignition switch, brake switch, window/door lock switches, lighting control module (LCM), keyless entry keypad switch and remote transmitter. The DDM outputs consists of keyless entry keypad switch illumination, power door lock actuators, luggage compartment release solenoid, horn relay, and lighting control module (LCM).
  • Battery junction box (BJB) fuses:
    • circuit breaker 7 (20A)
  • Central junction box (CJB)
    • 4 (10A)
    • 6 (15A)
    • 8 (25A)
    • 13 (5A)
  • Keyless entry keypad switch
  • Power door lock actuator
  • Luggage compartment release switch
  • Luggage compartment release solenoid
  • Connectors or connections
  • Wiring harness
  • If fuse's good have checked for DTC'S - diagnostic trouble codes .
  • B1526 Keyless Entry Circuit Short to Ground DDM Go To Pinpoint Test E . B1553 Decklid Release Circuit Short to Battery DDM Go To Pinpoint Test B . B1751 Park/Neutral Switch Circuit Short to Battery DDM Go To Pinpoint Test K . B2425 Remote Keyless Entry Out of Synchronization DDM Go To Pinpoint Test L Need a professional grade scan tool to check fro these codes . Not a code reader for OBD2 codes .
  • The doors do not lock/unlock using the remote transmitter
  • Remote transmitter not programmed.
  • Remote transmitter.
  • DDM.
  • Go To Pinpoint Test F .

Did you program the new key fob ?

Remote Transmitter Programming NOTE: All remote transmitters are programmable and must be set at the same time.
  1. Turn the key from OFF to RUN four times within three seconds, ending in RUN. The locks will then lock and unlock, confirming program mode has been entered.
  1. Press any button on each remote transmitter to be programmed. The doors will lock and unlock to confirm that each remote transmitter has been programmed.
  1. If additonal remote transmitters are to be programmed, repeat Step 3 within 7.5 seconds or steps 2 and 3 if more than 7.5 seconds have elapsed.
  1. To exit program mode, turn the ignition to START or wait 7.5 seconds.
  1. NOTE: Failure to wait at least 20 seconds will cause programming failures. Wait at least 20 seconds after turning the key to OFF or after the last remote transmitter has been programmed to activate a remote transmitter for testing or verification

Feb 19, 2017 | Cars & Trucks

2 Answers

Mervia. Why is central locking not locking any door?


It's only an educated guess. If all other locks switches are working it' either the switch panel itself or an electrical short. Switches are popular, get it checked first

Nov 22, 2015 | Vauxhall Cars & Trucks

1 Answer

Does 2002 models come with FOB door lock controls?


I'm pretty sure that all 2002 models came with power door locks, controlled from the driver or front passenger seats. But they did not all come with remote keyless entry as standard equipment.

Mar 10, 2010 | 2002 Dodge Intrepid

1 Answer

Program remote


The horn chirp can be disable by pressing the lock and unlock buttons simultaneously until the hazard lights flash, and no enable press the lock and unlock until the horn chirp.
To reprogram (enter new ID) key fob (keyless remote controller) follow the steps.
1. Close all doors and lock all doors
2. Insert and remove the key from the ignition key cylinder more than six times within 10 seconds. (The hazard warning lamp will then flash.) NOTE: Key should be withdrawn from ignition key cylinder completely each time.
NOTE: Do not rush the insertion/removal key cycling process. The side marker/tail/license lamps and interior illumination will flash twice when this step is accurately completed.
3. Insert key on ignition key cylinder and turn ignition key switch to "AAC" position At this time, the new ID code is entered and original (previous) ID codes are erase.
4. Press any button on the new remote controller once. (The hazard warning lamp will then flash)
NOTE: Do not press the button more than one time in the above step. If the button is pressed more than one time, the programming procedure will not be successful. The side marker/tail/license lamps and interior illumination will flash twice when this step is accurately completed and programming is successful.
If there is only one remote controller skip step 5.
5. Additional ID code entry Release the door lock, then lock again with door lock/unlock switch (In power window main switch)
6. Remove key from ignition
7. Unlock driver side door, open driver side door and then close the door. (END)

Feb 20, 2010 | 2001 Nissan Pathfinder

1 Answer

We have a 2001 Ford Escape with a small problem. The remote key fob locks the doors and unlocks the doors but the lights don't flash anymore when you lock the door. The horn also won't honk after hitting...


I think you need to reprogram the module, you deleted the horn chirp and light flash confirmation. he dealer can reprogram for you.


Customer Preference Items NOTE: If using the WDS, select Module Configuration and Programming, then follow the screen prompts.
NOTE: Make sure module is listed as supporting customer preference items and supports the specific item to be configured in the Module Configuration Index in this section.
  1. Select Service Bay Functions on the diagnostic tool.
  1. Select the module that contains the customer preference item to be programmed. Refer to the Module Configuration Index in this section.
  1. Select Customer Preference Items on the diagnostic tool.
  1. Select Module Option Content.
  1. Select the item to be enabled or disabled.
  1. Enable or disable the item as necessary to reflect the customer preference.
------------------------------------------------------------------------

----------------------------------------------------------------------------
Principles of Operation
Power Door Locks
The generic electronic module (GEM) controls the power door lock and keyless entry system. Lock and unlock operation is achieved through the use of internal relays in the GEM. The relays are all door lock, all door unlock and driver door unlock. The normal path of the relays is to ground.
Pressing the door lock control switch to lock or unlock sends a ground signal to the GEM. The same GEM pin is used for unlock and lock input. The unlock signal is a direct connection to ground. The lock signal is altered by an internal resistor in the door lock control switch. This varied resistance identifies lock or unlock command to the GEM.
The door locks can also be controlled by the door key cylinder switches. For the liftgate door lock switch, turning the key to lock or unlock sends a ground signal to the GEM. The GEM will then ground the all door lock or all door unlock relay supplying voltage to the actuators. Turning the driver door key cylinder to the lock position sends a ground signal to the GEM. The GEM will then ground the all door lock relay supplying voltage to the actuators. Turning the driver door key cylinder to unlock sends a ground signal to GEM. The GEM will ground the driver door unlock relay and supply voltage to only the driver door actuator. If a second unlock ground is received within three seconds of the first, the GEM will ground the all door unlock relay supplying voltage to the passenger door actuators (if 2-stage unlock is equipped).
Keyless Entry
The keyless entry remote transmitter sends a signal that is received by the GEM internal antenna. Depending on the signal received, the GEM module will ground the appropriate internal relay and lock all doors or unlock the driver door. If the unlock signal is received again within three seconds of the first unlock, the GEM will ground the internal all door unlock relay unlocking all doors. The lock and unlock relay output to the actuators is controlled by the GEM, the same as power door lock operation from the control switch.
If the signal received is for the panic button, the GEM will cycle ground to the park lamp relay coil and horn relay coil. The park lamps and horn will continue to cycle until the panic button is pressed again or the ignition switch is turned to the RUN position, or after the timer expires.

Dec 17, 2009 | 2005 Ford Escape

1 Answer

2008 Tahoe-Remote won't lock or unlock the Drivers side lock


more than likely the lock solenoid in the driver side door is not working. it located near the latch inside the door.

Aug 24, 2009 | 2004 Honda Civic

1 Answer

Sliding doors won't lock or unlock using keyless.


there are 3 possibilities that I would check first. 1: make sure the contacts on the door, and body where the touch are clean. the lock and unlock signal are sent through these. 2: You may try replacing the battery in your key fob. 3: the power lock motors may have gone bad. To check, lock the doors with the drivers door panel, if they lock, they are fine. Another solution may be to recode your key fob. procedure for coding the fob to your vehicle can be found online.

Oct 21, 2008 | 1998 Chevrolet Venture Cargo

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