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Keyless remote will lock doors but not unlock, also passenger side switch will lock doors but will not unlock. this is a 2008 chevy uplander. are these problems related?

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The problem is with the remote key FOB then. Replace it.

Posted on Feb 14, 2012

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Posted on Jan 02, 2017

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SOURCE: good afternoon....what would cause my 2008 Chevy

It could be the power lock motor. You could have a short or bad wiring harness. Might just be a fuse that connects to both. But since you said it's only the driver side. When the power lock motor is bad it can trigger your alarm because they're wired together.

Hope that helps. Good luck.

Posted on Apr 06, 2010

  • 713 Answers

SOURCE: 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.

Posted on Aug 24, 2009

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1 Answer

Keyless entery only opens drivers door


Try pressing the unlock button twice

Nov 16, 2013 | 2006 Chevrolet Uplander

1 Answer

Where is located the keyless module in Chevy Uplander 2006


Have you tired reprogramming the remotes top work the module first, that is what must be done before any parts are replaced, they do loose programming for no apparent reason at times. This can be causes by an electrical magnetic pulse of some sort.

Aug 17, 2012 | 2006 Chevrolet Uplander

1 Answer

2008 Chevy Uplander not locking


I had the exact same problem start with mine yesterday. I found a suggestion to check the fuses that are located on the passenger side of the vehicle but I didn't see any problems there so my next step will be to change the driver side door switch which appears to be the master switch.

Jun 28, 2012 | 2008 Chevrolet Uplander

1 Answer

I have a 2000 ford mustang. Suddenly my keyless entry remote stopped working. I replaced the battery and turned the off and on 8 times and the locks cycled. after which i pushed the unlock but nothing...


The keyless entry system is controlled by the (GEM) - generic electronic module .
Keyless Entry The electronic door lock system has two main components:
  • generic electronic module (GEM)(14B204)
  • keyless entry remote transmitter (15K601)
  • NOTE: Battery power and ground must be remove before disconnecting the GEM connectors to avoid setting false codes.
    Power Locks Operation The power locks feature allows the customer to lock and unlock the doors via momentary switches located on the driver and passenger door. When the GEM detects a momentary press of the driver or passenger lock button, the GEM will supply power to the driver or passenger lock actuators for approximately 250 ms from relays internal to the GEM. When the GEM detects a momentary press of the driver or passenger unlock button, the GEM will supply power to the driver or passenger unlock actuators for approximately 250 ms from relays internal to the GEM.
    Remote Keyless Entry Door Locks Operation The remote entry feature allows the customer to unlock the driver door, unlock all doors, and lock all doors using a valid remote transmitter as long as the ignition switch is not in RUN or START. The driver door is unlocked whenever the GEM detects a valid remote transmitter unlock transmission. All the doors are unlocked when the GEM detects a second valid remote transmitter unlock transmission within three seconds of the first transmission. All the doors are locked when the GEM detects a valid remote transmitter lock transmission. If the GEM detects a second valid remote transmitter lock transmission within three seconds of the first transmission, the doors will lock again, the horn will sound for 20 ms and the parking lamps will flash for 200 ms to indicate the doors are locked. If the GEM detects the driver or passenger door is ajar during the second lock transmission, the doors are locked again and the horn is sounded twice. If the GEM detects a valid remote transmitter lock transmission within three seconds of detecting a valid remote transmitter unlock transmission, the GEM will lock all the doors
    • The doors do not lock/unlock using the remote transmitter
    • Ignition switch.
    • GEM.
    • Remote transmitter.
    • Remote transmitter batteries.
    • GO to Pinpoint Test C .
    You followed the program instructions to the letter ? Programming -Keyless Entry Remote Transmitter NOTE: All keyless entry remote transmitters (15K601) must be programmed at the same time.
    NOTE: All previous transmitter identification codes (TIC's) will be erased when programming mode is entered.
    NOTE: To program (or reprogram) the keyless entry remote transmitters into the generic electronic module (GEM)(14B204), perform the following steps.
    1. Turn the ignition from OFF to RUN eight times within 10 seconds, ending in RUN. If the GEM has successfully entered program mode, it will lock and unlock all the doors.
    1. NOTE: The first TIC must be entered within 7.5 seconds of entering the program mode and additional TICs must be entered within 7.5 seconds of the first TIC. The programming mode is exited whenever the timing constraints are not met.
      Press any button on a keyless entry remote transmitter, and the doors will lock and then unlock to confirm that each keyless entry remote transmitter has been programmed.
    1. If the door locks do not respond for any keyless entry remote transmitter, wait for several seconds and press the button again.
    1. Turn the ignition switch to the OFF position, or wait up to five minutes after step 1, to exit program mode. If a keyless entry remote transmitter has been programmed (or reprogrammed), the GEM will lock and unlock all the doors one last time.
    1. Take an have the vehicle checked for DTC'S
B1396 Power Door Lock Circuit Short to Battery GEM GO to Pinpoint Test B . B1397 Power Door Unlock Circuit Short to Battery GEM

Apr 12, 2017 | Ford Mustang Cars & Trucks

1 Answer

I have a 2008 Chevy Avalanche with remote door unlock. The keyless remote stopped working on the driver door but still works on all other doors and the tailgate. If I use the key only on the driver door...


Does the switch inside for that door work ? Does the power window work for that door ? Check fuse DDM - 15 amp I/P fuse panel . Do you know where the insturment panel fuse box is located ?
Fuse Block - I/P
Left of the I/P behind the side trim panel
# 4
DDM Fuse
15A
Driver Door Module (DDM)

Do you know anything about automotive electronic's , control module's ? Serial data communication networks ?
Circuit/System Description
The driver and passenger door lock and side window switches are integrated control module switch assemblies. The DDS and PDS door lock switches are normally open, 2 position rocker type switches, with detents for lock and unlock. The DDS and PDS are directly connected to the respective door lock actuator through the door lock actuator control circuits. When a door lock or unlock function is activated from the DDS or PDS, a serial data message lock or unlock command is sent to the other door switch and body control module.

Sep 15, 2017 | 2008 Chevrolet Avalanche

1 Answer

Good afternoon....what would cause my 2008 Chevy


It could be the power lock motor. You could have a short or bad wiring harness. Might just be a fuse that connects to both. But since you said it's only the driver side. When the power lock motor is bad it can trigger your alarm because they're wired together.

Hope that helps. Good luck.

Apr 06, 2010 | 2008 Chevrolet Avalanche

2 Answers

Program fob


Instructions to program a keyless entry remote for a Chevy Silverado. They also work on 2003, 2004 and 2006 Suburbans.
  1. Close all the vehicle doors.
  2. Insert the ignition key into the ignition lock cylinder.
  3. Press and hold the DOOR unlock switch.
  4. While holding the DOOR lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF.
  5. Release the DOOR unlock switch. The doors will lock and unlock to confirm the program mode.
  6. Press and hold the LOCK button and the UNLOCK button simultaneously on one keyless remote. After a delay of approximately 15 seconds, the doors will lock and unlock to confirm the programming of that transmitter.
  7. Repeat the previous step to program up to four transmitters.
  8. Turn the ignition switch to the RUN (one more click forward) position in order to exit the keyless entry transmitter mode.
  9. Operate the transmitter functions in order to verify correct system operation

Apr 19, 2009 | 1999 Chevrolet Silverado 1500

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