Question about 1999 Chevrolet Tahoe

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Door locks only actuate from the remote transmitter. do no operate from either door switch. cannot find wiring diagram that is helpful Jim Lutz

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  • Anonymous Mar 23, 2014

    i am looking for wire connections on door panel

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Not to insult your intelligence or anything, but I had the same problem, and fixed it by replacing fuse #13. It was caused by a short in my cigarrette lighter. Good Luck!

Posted on Oct 15, 2008

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2005 Buick Rendezvous you can hear the relay clicking but the door locks will not open and close


Check for broke wires inside the boot from body to driver door , this is a common problem . If you don't find broke wire's , pull the door panel to get at driver door switch . Check for voltage an ground circuit .
Rendezvous Door Lock System Components
The power door lock system consists of the following components:
?€¢
Body control module (BCM)


?€¢
Driver door lock switch


?€¢
Front passenger door lock switch


?€¢
Door lock actuators in each of the doors


?€¢
Door lock system fuse into the BCM (BCM D 25A fuse)


Door Lock Operation
When the BCM detects a transition of either of the door lock switches to the LOCK position, it switches the door lock actuator lock control circuit to voltage. Since the lock actuator unlock control circuits are at ground potential within the BCM, the door lock actuator motors transition to the Lock position.
Driver Door Unlock Operation
When the BCM detects a transition of either of the door lock switches to the UNLOCK position, it switches the driver door lock actuator unlock control circuit to voltage. Since the door lock actuator lock control circuit is at ground potential within the BCM, the LF door lock actuator motor transitions to the Unlock position.
The driver door lock actuator unlock control circuit is a dedicated control circuit used only for the driver door lock actuator motor. This is done so that the driver door may be unlocked by itself using a keyless entry transmitter or an automatic door unlock function (if programmed).
Passenger Door Unlock Operation
When the BCM detects a transition of either of the door lock switches to the UNLOCK position, it switches the door lock actuator unlock control circuits to voltage. Since the door lock actuator lock control circuit is at ground potential within the BCM, the passenger door lock actuator motors transition to the Unlock position.
The door lock actuator unlock control circuits are dedicated control circuits used only for the passenger door lock actuator motors. This is done so that the driver door may be unlocked seperate from the passenger doors using a keyless entry transmitter or an automatic door unlock function (if programmed). This video on testing computer controlled door locks on a Subaru , doesn't matter . test yours same way > The BCM controls your door locks .
Are all of the power door locks inoperative from both door lock switches?

Oct 12, 2016 | 2005 Buick Rendezvous

1 Answer

What do I replace if my Auto door locks won't work


First off testing would need to be done to determen what the cause is . The door locks on your vehicle are controlled by a computer ,BCM - body control module . The first test would be to check for DTC'S diagnostic trouble codes in the BCM . An to do this you would need a factory scan tool , not a OBD2 code reader . Door Lock System Components
The Power Door Lock System consists of the following components:
• Body control module (BCM)
• Driver door lock switch
• Front passenger door lock switch
• Reversible door lock actuator in each of the doors
• IBCM (PWR) 15-amp fuse
• Driver door cylinder switch, if equipped
Door Lock System Controls
The Power Door Lock System is controlled by the body control module (BCM) and can be activated by any one of the following:
• A door lock switch lock or unlock actuation
• A keyless entry transmitter actuation
• An automatic door lock or unlock actuation
• A last door closed locking (LDCL) actuation
If the driver door cylinder switch feature of the vehicle is functional, the locks may also be operated by a driver door cylinder switch lock or unlock activation.
Your best bet would be to take to a ASE certified repair shop or the dealer.Because if the BCM were the problem an had to be replaced , it would need programming .
Each door lock switch is wired to the body control module (BCM) through a separate door lock/unlock signal circuit. While these circuits are separated between the BCM and respective door lock switch, they are connected into a single circuit within the BCM. The BCM supplies voltage through the door lock/unlock signal circuits to each door lock switch. When either door lock switch is operated, this supply voltage is pulled to ground, providing the BCM with the required lock or unlock signal. In order for the BCM to distinguish between a lock and unlock signal, the lock switch contains two separate paths for this voltage to flow to the same body ground. When the switch is operated to the unlock position, the supply voltage flows to ground through a 1.5K ohm resistor. When the switch is operated to the lock position, the supply voltage flows to ground through a different part of the switch circuit, which has no resistor. The BCM then interprets the flow of voltage as a lock or unlock request and powers the door lock actuators to the appropriate lock or unlock position.

Dec 20, 2015 | 2009 Chevrolet Malibu

1 Answer

My hatch won't release from the remote or the door switch. No solenoid sound at the hatch. How do I get it to open if it's not a bad fuse?


There are actually three relays , an there are controlled by the BCM - body control module !
When a door lock switch is activated in the lock or unlock position the BCM will receive a voltage signal on either the door lock switch lock or unlock signal circuits.
The BCM, upon receipt of a lock switch lock or unlock signal, will switch the appropriate lock relay control circuits to battery positive voltage. This will energize the appropriate lock or unlock relays. The relay will supply voltage to the door lock actuator lock or unlock control circuits to one side of the lock actuator. Since the opposing side of the lock actuators are connected to ground through the other lock actuator control circuit and the normally closed contacts of the lock or unlock relay, the doors and liftgate will then lock or unlock appropriately.
Three relays are used to operate the locks. DRV DR UNLCK relay, PASS DR UNLOCK and DR LCK relay. This is done to isolate the driver door lock actuator so it can be unlocked by itself using the keyless entry transmitter.
Rear Hatch/Gate Description and Operation
The liftgate can be opened by operating the switch on the instrument panel. Battery voltage is supplied to the liftgate actuator through the body control module (BCM). The BCM will pulse the liftgate actuator when a release input is received through the key fob, or the instrument panel switch.
Door/Lift gate Latch Assembly
  1. Install a 20-A fused jumper wire between the control terminal 3 and 12 volts. Install a jumper wire between the ground terminal 2 and ground.
  2. Verify the actuator turns on & off.
?‡'
If the function does not perform as specified, replace the applicable door latch.

Oct 01, 2015 | 2006 Pontiac Torrent

1 Answer

07grandprix my door locks are all actin up sometimes they work & sometimes they dont I can set the alarm even tho they wont lock & the alarm goes off if u open the door but won't lock with the key/pad


The Power Door Lock System is controlled by the body control module (BCM) and can be activated by any one of the following
?€¢
A door lock switch lock or unlock actuation.


?€¢
A door lock cylinder switch unlock actuation.


?€¢
A keyless entry transmitter actuation.


?€¢
An automatic door lock actuation (Personalization function).


?€¢
An automatic door unlock actuation (Personalization function).


?€¢
A last door closed locking (LDCL) actuation (Personalization function).


Door Lock Operation
When the body control module (BCM) detects a transition of either of the door lock switches to the lock position, it switches the door lock actuator lock control circuit to voltage. Since the lock actuator unlock control circuits are at ground potential within the BCM, the door lock actuator motors transition to the lock position.
Driver Door Unlock Operation
When the body control module (BCM) detects a transition of either of the door lock switches to the unlock position, it switches the driver door lock actuator unlock control circuit to voltage. Since the door lock actuator lock control circuit is at ground potential within the BCM, the left front (LF) door lock actuator motor transitions to the Unlock position.
The driver door lock actuator unlock control circuit is a dedicated control circuit used only for the driver door lock actuator motor. This is done so that the driver door may be unlocked by itself using a keyless entry transmitter or an automatic door unlock function (if programmed).
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.
A factory scan tool would help for checking inputs from the door switches to the BCM ! You could do it with out scan tool , a lot more work involved ! Need a wiring diagram an a component location chart an wiring harness routing diagram !
Most intermittent conditions are caused by faulty electrical connections or wiring. Inspect for the following items:
?€¢
Wiring broken inside the insulation


?€¢
Poor connection between the male and female terminal at a connector


?€¢
Poor terminal to wire connection--Some conditions which fall under this description are poor crimps, poor solder joints, crimping over the wire insulation rather than the wire itself, and corrosion in the wire to terminal contact area, etc.


?€¢
Pierced or damaged insulation can allow moisture to enter the wiring causing corrosion. The conductor can corrode inside the insulation, with little visible evidence. Look for swollen and stiff sections of wire in the suspect circuits.


?€¢
Wiring which has been pinched, cut, or its insulation rubbed through may cause an intermittent open or short as the bare area touches other wiring or parts of the vehicle.


?€¢
Wiring that comes in contact with hot or exhaust components


?€¢
Refer to Inducing Intermittent Fault Conditions in order to duplicate the conditions required, in order to verify the customer concern.


?€¢
Refer to Testing for Electrical Intermittents for test procedures to detect intermittent open, high resistance, short to ground, and short to voltage conditions.


?€¢
Refer to Scan Tool Snapshot Procedure for advanced intermittent diagnosis and Vehicle Data Recorder operation.


You should take it to a ASE certified repair shop if not familiar with Automotive electronics !

Jul 14, 2015 | Cars & Trucks

2 Answers

Why won't the passenger door unlock?


Door Lock System Controls
The Power Door Lock System is controlled by the body control module (BCM) and can be activated by any one of the following:
?€¢
A door lock switch lock or unlock actuation

?€¢
A keyless entry transmitter actuation

?€¢
An automatic door lock or unlock actuation

?€¢
A last door closed locking (LDCL) actuation
If the driver door cylinder switch feature of the vehicle is functional, the locks may also be operated by a driver door cylinder switch lock or unlock activation.
Power Door Lock Switch Operation
Each door lock switch is wired to the body control module (BCM) through a separate door lock/unlock signal circuit. While these circuits are separated between the BCM and respective door lock switch, they are connected into a single circuit within the BCM. The BCM supplies voltage through the door lock/unlock signal circuits to each door lock switch. When either door lock switch is operated, this supply voltage is pulled to ground, providing the BCM with the required lock or unlock signal. In order for the BCM to distinguish between a lock and unlock signal, the lock switch contains two separate paths for this voltage to flow to the same body ground. When the switch is operated to the unlock position, the supply voltage flows to ground through a 1.5 K?© resistor. When the switch is operated to the lock position, the supply voltage flows to ground through a different part of the switch circuit, which has no resistor. The BCM then interprets the flow of voltage as a lock or unlock request and powers the door lock actuators to the appropriate lock or unlock position.
I'll post a youtube video on how to test the power door locks computer controlled , check it out ! Your problem could be a switch or the lock actuator , BCM , wiring etc.... you need to test it to see !
I'll
How to test computer controlled door locks

Mar 22, 2014 | 2008 Saturn Aura

1 Answer

How do i program the remote for my car?


PROGRAMMING REMOTE KEYLESS ENTRY TRANSMITTERS (RKE)

1. Install scan tool

2. Turn the ignition switch to ON - do not start engine

3. Select "Remote Function Actuation" with the scan tool

4. Select "Special Functions"

5. Select "Program Key Fobs"

6. Select the number of key fobs to be programmed

7. Press and hold the LOCK and UNLOCK buttons on the first transmitter simultaneously for approximately 15 seconds. The door locks should cycle (Lock and unlock) to confirm that the programming of the first fob is complete.

8. If you are programming more than one transmitter, repeat the previous step for each transmitter for up to four transmitters in total.

9. Remove the scan tool

10. Exit the vehicle and operate transmitter functions to verify correct programming and operation.

Apr 20, 2011 | 2003 Saturn L-Series

1 Answer

I bought a 1996 Subaru Impreza L 4dr 5speed AWD that runs and starts fine but when I was installing fog lights i noticed that there appears to be an alarm hooked up (it says "code alarm elite DM...


Battery Constant 12v+ Positive Wire (+): Black/Yellow
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Blue/Red
Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Red
Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Red/Yellow
Accessory Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): Red
Parking Light Positive Wire Location: Low In Drivers Kick Panel

Power Door Lock Negative Wire (-): Add Actuator. This vehicle uses a central door locking system. When connecting a keyless entry, you will need to add a door lock actuator and some units will also require (2) extra relays.
Power Door Lock Negative Wire Location: To Drivers Door Only

Power Door Unlock Negative Wire (-): Add Actuator. This vehicle uses a central door locking system. When connecting a keyless entry, you will need to add a door lock actuator and some units will also require (2) extra relays.
Power Door Unlock Negative Wire Location: To Drivers Door Only

Door Trigger Negative Wire (-): Red/White
Door Trigger Negative Wire Location: In Black Plug, Above Hood Release

Domelight Supervision Wire: Use Door Trigger, Requires Relay
Domelight Supervision Wire Location: N/A

Horn Negative Wire (-): Red/Green
Horn Negative Wire Location: At Steering Column Harness

Tachometer Wire Negative Wire (-): Black/Blue
Tachometer Wire Negative Wire Location: At ECM, Under Drivers Side Dash

Brake Light Positive Wire (+): White/Black
Brake Light Positive Wire Location: At Switch Above Brake Pedal

CODE ALARM SYSTEM

Used on:
Impreza 1996-2001
Legacy 1995-1999
Forester 1998-2000

codealarmremote2.jpgBattery GP-23A

Lock: Left button will lock all doors. Double chirp indicates locked.
Unlock: Right button will unlock driver's door only. Hold unlock button app 6 seconds, it will unlock all doors including rear gate. Single chirp indicated unlock.
If the car chirps or lights flash 4x the alarm was triggered.
Panic. Press both buttons to activate emergency honk and flashing lights.
Valet mode: With optional alarm onlyPress the red alarm button on the left of the steering wheel. The light will quickly double flash. To re-set back to normal mode, press the red alarm light button again

Battery failed and lights flashing?
Parking lights will flash when the vehicle's battery is disconnected and reconnected.
To stop lights from flashing, either:
Press remote transmitter "UNLOCK" button once OR turn the ignition switch to the "ON" position and press programming button for one second (see below).
The vehicle interior (courtesy) light and door open warning light (DOOR AJAR indicator) will then illuminate for 60 seconds when the ignition is turned off, or until the doors are locked with the remote transmitter. Yes, the dashboard instrument panel lights will flash when the parking lights flash.

Programming or Overriding the Alarm when you have lost the remote
Open driver's door.
Turn ignition key to 'On'
Press and *hold programming button* in (see diagram, button under dashboard)
After 15 seconds the the door locks will cycle 3 times. Do not release Programming button.
Press lock (left) button the remotes to be programmed. The door locks will cycle one time. Exit programming mode by releasing Programming button under dashboard and turning key to off.


codealarmremote1.jpgCode Alarm Programming Button is under dashboard on the kick panel by the driver's left knee, left of the steering column. If you can't find it, it might still be tucked up in the wiring harness higher up in that same general area. The botton is recessed in a plastic ring (see diagram).
This button must be pressed while programming remotes or if the battery was disconnected and the lights are flashing.

Jan 05, 2011 | Subaru Impreza Cars & Trucks

1 Answer

Thank you for your response , been going crazy here...got panel off enough to put hand in but don't know where to pull to unlock door.



Jaguar 2000-06 - Locks & Lock Systems
Power Door Locks - Removal & Installation

Door Lock Switch
Door Lock Diagnosis & Testing

  1. Visually inspect the following:
    Misaligned door(s), hood or luggage compartment lid Door latches Actuating rod Exterior door handle Interior door handle Door lock cylinder Cable Luggage compartment lid exterior release switch Fuse(s) Wiring harness Electrical connector Door lock actuator Remote transmitter batteries Vehicle battery Remote transmitter Door lock switch Front electronic module
  2. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

Door Lock Motor
Coupe And Convertible
  1. Turn ignition key to position II.
  2. Motor door glass to fully raised position.
  3. Turn ignition key to position O.
  4. Disconnect the negative battery cable.
  5. Remove door casing for access.
  6. Remove door water shedder.
  7. Position PVC secondary water shedder for access.
  8. Slacken and remove the door glass rear runner lower securing screws.
  9. Reposition door glass rear runner. Mark the position of the glass rear runner upper securing screw.
  10. Slacken and remove the upper securing screw and move the runner away from the glass.
  11. Disconnect door handle and lock barrel (driver door only) operating rods from latch links.
  12. Slacken and remove the three latch assembly securing screws and position latch for access.
  13. Remove latch motor harness multiplug from mounting bracket and disconnect multiplug.
  14. Release operating cable from door handle. Move inner door handle to the locked position. Remove operating cable outer abutment from support bracket. Disconnect cable inner from door inner handle.
  15. Remove lock motor assembly from door.
  16. To install, reverse removal procedure.

    zjlimited_378.jpg

    Fig. Removing door lock actuator


Sedan
  1. Remove the door window glass
  2. Detach the interior door handle.
  3. Detach the actuator remote cable from the interior door handle.
  4. Remove the interior door handle.
  5. Detach the door window glass run.
  6. Remove the exterior door handle retaining screws.
  7. Remove the front door actuator retaining screws.
  8. Reposition the front door actuator and exterior handle.
  9. Remove the front door actuator and exterior handle.
  10. Disconnect the front door actuator remote cable.
  11. Detach the door lock cylinder connecting rod (1).
  12. Detach the exterior door handle connecting rod (2).
  13. Remove the front door actuator (3).
  14. To install, reverse removal procedure.

    zjlimited_379.jpg

    Fig. Removing door lock motor-Sedan



Hope this helps.

Dec 31, 2010 | 2002 Jaguar X-Type

2 Answers

Power locks are unlocking but not locking only the driver side locks and unlocks


the rubber pads on the door lock actuating lever are worn or the actuators are weak. They would need to be tested and looked at to determine this problem

Jun 25, 2010 | 2000 Chevrolet Tahoe

1 Answer

How do i reprogram electronic door locks


Programming Electronic Door Lock Control System NOTE: The electronic door lock control processor (14B001) erases all previous keyless entry remote transmitter (15K601) from memory when the keyless entry remote transmitters are programmed or reprogrammed. The electronic door lock control processor can store up to four keyless entry remote transmitters in memory.


  • To program (or reprogram) keyless entry remote transmitter into the electronic door lock control processor, perform the following steps:
  1. Turn ignition switch to the RUN position and momentarily short the two terminals of the program connector taped to the wire assembly and located behind the glove compartment. All doors should lock and then unlock. Remove shorting pin.
  1. Press any button on keyless entry remote transmitter. All doors should lock and then unlock to verify the keyless entry remote transmitter has been programmed. If door locks do not respond, press button again (up to three times maximum with the same keyless entry remote transmitter).
  1. Repeat the above step to program additional keyless entry remote transmitters into the electronic door lock control processor (up to four keyless entry remote transmitters maximum).
  1. Turn ignition switch OFF. All doors should lock and then unlock.
  1. Check operation.

Jun 05, 2010 | 1997 Ford Windstar

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