Question about 1998 Plymouth Grand Voyager

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Power door lock relay

Drivers sliding door locks do not operate

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Check fuses, check relay operation, check switch, check actuator

Posted on Jul 25, 2013

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2 Answers

2010 express van


The BCM - body control module is what controls the power lock's , disconnecting power can cause some functions to need resetting .
Have the BCM checked for DTC'S - diagnostic trouble code's , that would be my first step . Do you know what wiring diagrams are an how to read them ? Free wiring diagrams here
http://www.bbbind.com/free-tsb Enter vehicle info. Year , make , model an engine size . Under system click on body & accessories , then under subsystem click on power lock's .

Battery Disconnect or Replacement Problems


Driver Door Unlock Operation
When any of the door lock switches are placed in the unlock position, a ground signal is applied to the BCM through the door unlock signal circuit. Upon receiveing this signal, the BCM grounds the control side of the driver door unlock relay through the driver door unlock relay control circuit. Since the other side of the driver door unlock relay winding is connected to battery voltage, the relay is energized. This causes the contacts to close and complete the path from the DRV LKS fuse through the battery voltage circuit. Voltage is then applied to the unlock side of the driver door lock actuator through the driver door lock actuator unlock control circuit. Since the other side of the the driver door lock actuator is connected to the normally closed contacts of the door lock relay to ground, the driver door unlocks.
The driver door unlock function can also be accomplished by the BCM supplying ground to the driver door unlock relay control circuit by either of the following:
• A keyless entry unlock transmission
• A lock out prevention function

DTC B3130 00: All Door Unlock Circuit
DTC B3135 00: All Door Lock Circuit

Circuit/System Description
When any of the door lock switches are placed in the lock position, a ground signal is applied to the BCM through the door lock signal circuit. Upon receiving this signal, the BCM grounds the control side of the door lock relay through the door lock relay control circuit. Since the other side of the door lock relay coil is connected to battery voltage, the relay is energized. This causes the contacts to close and complete the path from the battery voltage circuit. Voltage is then applied to the lock side of the door lock actuators through the door lock actuator lock circuits. Since the other side of the all the door lock actuators are connected to the normally closed contacts of their respective unlock relays to ground, the doors lock.

May 15, 2018 | Cars & Trucks

2 Answers

2009 malibu door lock relay located


I suggest you get one of those manuals
from www.reliable-store.com they can help you in this

Mar 08, 2018 | Cars & Trucks

1 Answer

1999 blazer Doors lock and unlock even when parked, help


Lock an unlock by them selves ? Door locks are computer controlled ,by the BCM - body control module .
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Power Door Locks Circuit Description
The power door lock system includes the following components:
• The door lock actuators
• A door lock relay
• An door unlock relay
• A driver door unlock relay
• The door lock and side window switches
• The body control module (BCM)
• The endgate lock cylinder switch /liftgate lock cylinder switch (utility)
• The keyless entry, if equipped
The door lock and liftgate mechanisms may be controlled by the following switches:
• The door lock and side window switches
• The BCM
• The endgate lock cylinder switch / liftgate lock cylinder switch (utility)
• The keyless entry, if equipped
The following locking functions are included on the vehicle:
• All the doors unlock -- All the doors will unlock, including the endgate/liftgate, when any power door unlock switch is detected. The passenger doors lock directly by pressing the lock switches. The driver door unlocks by the BCM using a driver door unlock relay.
• All the doors lock -- All the doors will lock, including the endgate/liftgate, when any power door lock switch is activated. All the lock actuators will activate directly from the power door lock switch (external to the BCM).
• The end/lift gate lock switch -- All the doors will lock or unlock from the end/lift gate lock switch.
• The lockout prevention -- This function will prevent the doors from automatically locking if the keys have been left in the ignition and the power door lock switch is operated.
The motor is protected by a built-in electronic circuit breaker (ECB). If the motor is overloaded or voltage is applied for an excessive amount of time, the ECB internal resistance increases, essentially creating an open circuit. The resistance returns to normal only after voltage is removed from the circuit, thereby restoring circuit continuity.

You have a bad switch input to the BCM !
Door lock acting up 2005 Chevy Malibu fix it here
Door Locks Go Crazy 2

Jan 07, 2018 | Cars & Trucks

2 Answers

2005 Chevy Equinox Driver & Passenger Door Unlock Relay. How To Remove & Install. They Are Power Locks. Front Doors Must Roll Windows Down Use Hand To Open Thanks. Ms. J. C.


Door Lock and Unlock Operation
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 circuit(s) to battery positive voltage. This will energize the appropriate lock or unlock relay(s). 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 lock. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked by itself using the keyless entry transmitter.
Your door locks are controlled by the BCM - body control module (a computer ) . An a scan tool is a must to diagnose system operation . Your best bet would be to take your vehicle to a qualified repair shop . The only way you could try to fix this is by changing parts ! Suppose you find an replace a door lock/ unlock relay an that doesn't fix it ? There could be DTC'S stored in the BCM . Do you know what a DTC is ?
?€¢
DTC B3132 All Door Unlock Circuit Low


?€¢
DTC B3133 All Door Unlock Circuit High




Your

Aug 10, 2016 | Cars & Trucks

1 Answer

I have power to the door lock switches on the drivers door but the locks do not work nor does the back hatch or the switch at the back hatch that controls all the locks in the vehicle. Do the locks g


Power Door Locks Circuit Description
The power door lock system incorporates door lock switches on both front doors and on the RH D-pillar, door lock motors in all passenger doors and in the RR cargo door, a door lock relay and a door lock control module.
Power for the door lock switches and the door lock control module is supplied from the CIG LTR fuse 13 through CKT 640 (ORN). Power for the door lock relay is supplied from the PWR ACCY circuit breaker through CKT 540 (ORN). Ground for the door lock relay is supplied from G202 through CKT 150 (BLK) and ground for the door lock control module is supplied from G400 through CKT 150 (BLK).
The door lock motors are reversible and both sides are connected to the normally closed contacts of the door lock relay. Those contacts of the relay are connected to G202. When any of the door lock switches are placed in the lock position, voltage is supplied through CKT 195 (LT BLU) to the relay lock coil. Since the other side of the lock coil is connected to ground, the coil is energized and it pulls the lock contacts closed. Voltage is then supplied through CKT 295 (GRY) to all the door lock motors and the doors lock. The unlock function operates in much the same manner except that when any of the switches are placed in the unlock position, voltage is supplied through CKT 194 (WHT) to the unlock coil of the relay and CKT 294 (TAN) supplies voltage to the apposite side of the door lock motor and the doors unlock.
Door Lock Control Module Description
The door lock control module is used on vehicles equipped with cargo doors. The purpose of the module is to lock the cargo doors after a lock cycle has been commanded from any of the door lock switches with the cargo doors open. When the RH cargo door is open, the module receives a ground signal from the closed contacts of the rear door jamb switch on CKT 1897 (ORN/BLK) to G400. When a lock command is received, the module retains this input until it receives an open input from the rear door jamb switch. Then the module sends a lock command through CKT 194 (WHT) to the door lock relay and the doors lock.
Rear Cargo Doors Description
The power door lock motor will not operate unless the rear cargo doors are fully closed. The power door lock motor is in the right cargo door. The contactors are on the rear cargo door opening on the body and on the right cargo door.

May 23, 2017 | 1997 GMC Yukon

1 Answer

Camry 1996 automatic power lock doen't work, but windows work.


if you can here relays when unlocking/locking check for power at door lock actuators inside doors, if you have power on lock/unlock and good earth from connector actuators are faulty.
if no power on test light when operating check output from central door lock module while operating, none coming out of module then it might need replacing.
check 30Amp power fuse for main relay under bonnet (which goes to pin 8 white/blue on module)and 10Amp gauge fuse in cab(pin 1 blue/red on module),pin 15 is also power when relay is on(red/blue) with test light, and module/ actuators.
check outputs from module pin 3 & 4
blue/red
blue/black
that go to door locks

Jul 20, 2009 | 1996 Toyota Camry

1 Answer

Driver and Passenger auto door locks are inop.


Sounds like bad wiring, or bad door lock actuators. Check for power while locking/unlocking the doors.

Jun 29, 2009 | 2003 Chevrolet Astro

1 Answer

Cannot electrically operate door locks 2002 Astro Van


Is there B+ voltage to the switch ? Check for broken wires inside the rubber boot from the body to the door .

I did check switches on doors and found good continuity. ??? Ohm test or voltage
Is there B+ voltage on the orange wire at the drivers door switch ? There are two relays one locks the other unlocks . The Cig LTR fuse supplys B+ voltage to the door switches ,not the actuators . PWR ACCY circuit breaker powers the actuators through the lock / unlock relays ! Check out wiring diagram here http://www.bbbind.com/free_tsb.html

Jun 12, 2017 | 2002 Chevrolet Astro

1 Answer

Rear side windows


This may be just a case of inadvertently hitting the window lock out n th driver door window switch by mistake. Check that first. Here's some background on window operation

Principles of Operation
The driver power window regulator motor is controlled directly by the master window/door lock/unlock switch (and its integrated "auto down" module). Power is supplied to the power window relay and the master window/door lock/unlock switch, and the passenger power window switch when the SEC/timer module grounds the coil side of the power window relay. The SEC/timer module will ground this relay when the ignition is in the ON position and will remain energized for approximately 15 minutes or until the driver or passenger door is opened.
The driver power window regulator motor is a reversible motor that is operated by applying power and ground to the motor leads to lower the window, and then reversing polarity on those leads to raise the window.
The passenger power window regulator motor is controlled directly by the passenger power window switch and can also be controlled by the master window/door lock/unlock switch. Power is supplied to the power window relay and the master window/door lock/unlock switch, and the passenger power window switch when the SEC/timer module grounds the coil side of the power window relay. The SEC/timer module will ground this relay when the ignition is in the ON position and will remain energized for approximately 15 minutes or until the driver or passenger door is opened.
The passenger power window regulator motor is a reversible motor, which is operated by applying power and ground to the motor leads to lower the window, and then reversing polarity on those leads to raise the window.
The power rear quarter glass is also directly controlled by the master window/door lock/unlock switch. The power rear quarter glass power latches also utilize reversible motors. The power rear quarter glass power latches are operated by applying power and ground to the motor leads to open the window, and then reversing polarity on those same leads to close the window.
Symptom Chart Condition Possible Sources Action
  • All windows are inoperative
  • BJB Fuse:
    • F20.
  • Circuit.
  • Power window relay.
  • Front door power window switch.
  • GO to Pinpoint Test A .
  • Single power window is inoperative
  • Front door power window switch.
  • Front door power window regulator.
  • Circuit.
  • Driver door power window switch.
  • GO to Pinpoint Test B .
  • Vent power window is inoperative — quarter window glass power latch
  • Circuit.
  • Quarter window glass switch.
  • Quarter window glass power latch.
  • GO to Pinpoint Test C .
  • The one touch down feature is inoperative
  • Master window regulator and door lock switch.
  • INSTALL a new master window/door lock/unlock switch. REFER to Switch—Master Window Door Lock/Unlock .
  • The back window will not defrost
  • CJB Fuses:
    • F30 (10A).
    • F32 (20A).
    • F34 (20A).
  • BJB Fuse:
    • F27 (45A)
  • Circuit.
  • Heated back window switch.
  • SEC/timer module.
  • Rear window defrost relay.
  • GO to Pinpoint Test D .
  • The back window defrost will not shut off automatically
  • SEC/timer module.
  • Circuit.
  • Rear window defrost relay.
  • GO to Pinpoint Test E .

Jan 28, 2009 | 1999 Mercury Villager

2 Answers

Power Locks


you need to locate the relays for those items... generally on the fuse panel.... replace the relays that control the problem you have.

Robert

Nov 26, 2008 | 2005 Chrysler Town & Country

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