Question about 1986 Toyota Pickup 4WD

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Can not get them to lock

Door lock fuses

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  • Toyota Master
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Are you saying the keyless fobs are all dead.
what?
did you try them both?
did they even have FOBS in 1986? im too lazy now to look
you tell me.

Posted on Dec 29, 2013

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1 Answer

Power door lock for a 2001 Buick century fuse


Door locks fuse 20 amp - location , instrument panel fuse box .
Fuse Block-I/P
Right side of the IP, in the right front door opening

Doubt fuse is the problem , door lock's are controlled by the BCM - body control module .

Apr 20, 2018 | Buick Cars & Trucks

1 Answer

2007 Saturn ion 3 door locks fuse location


Power door lock's are controlled by the BCM - body control module . Are you familiar with automotive electronic's ?
Door Lock System Components
The power door lock system consists of the following components:
• Driver door lock switch--Uses a single signal wire for both lock and unlock switch activations
• Front passenger door lock switch--Uses a single signal wire for both lock and unlock switch activations
• Body control module (BCM)--Class 2 module which requires programming when replaced
• Reversible door lock actuators in each of the doors
• Body control module PWR 15A fuse--Located in the body control module fuse panel, supplies power for the door lock system

Door Lock and Unlock Operation
The BCM PWR fuse supplies battery positive voltage to the BCM for the door lock system.
The BCM supplies and monitors a reference voltage to the door lock switch through the door lock switch lock/unlock signal circuit. The door lock switch also receives a constant ground source. If a door lock switch is placed in the lock position, the reference voltage is taken directly to ground and the BCM senses 0.0 volts on the signal circuit. If a door lock switch is placed in the unlock position, the reference voltage is taken to ground through a 1.5K ohm resistor that is internal to the door lock switches and senses approximately 2.9 volts on the signal circuit. This is how the BCM determines what portion of the door lock switch was activated.
The BCM, upon receipt of a door lock switch lock or unlock signal, will switch the appropriate door lock actuator control circuits to battery positive voltage. The opposing side of the door lock actuators are connected to ground internally within the BCM through the other door lock actuator control circuit and the doors will lock or unlock appropriately.
Vehicles without keyless entry have two internal drivers in the BCM to control the door lock actuators. All door lock and all door unlock. Vehicles equipped with keyless entry have three internal drivers in the BCM. 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.

Nov 26, 2017 | Saturn Cars & Trucks

1 Answer

Why does the fuse immediately blow on my power door locks? how to fix this?


You have a short somewhere in the system. Maybe one of the lock actuators or a switch. To test disconnect all locks and switch then replace fuse if don't blow start with driver door and reconnect lock check fuse see if it blew if not reconnect switch active lock check fuse see if ok. Continue with each door separate using same steps until fuse no good you will have found short. Replace shorted part.

Apr 30, 2016 | Cars & Trucks

1 Answer

2008 Chevy Impala LTZ: car wont lock or unlock with the power lock/unlock buttons on the remote or car door. It makes a clicking sound though when I attempt to. Is this a blown fuse? Or something else


Where do you here the clicking sound ? in the door , behind instrument panel ? I don't think a blown fuse would do this , possibly a relay ! do you know what a relay is ? This is Chevy factory service information !
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.
There are three pcb relays integrated into the instrument panel fuse box ( non replaceable ) door unlock pcb relay drivers door -door unlock pcb relay an door lock pcb relay ! The BCM controls these relays ! Do you know what a BCM is ?
Circuit/System Description
The DR/LCK fuse supplies battery positive voltage to the I/P fuse block for the door lock system. The body control module (BCM) supplies and monitors a reference voltage to the door lock switch through the door lock switch lock/unlock signal circuit. The door lock switch also receives a constant ground source. If a door lock switch is placed in the lock position or unlock position, the reference voltage is taken directly to ground and the BCM detects the voltage drop on the signal circuit.
The BCM, upon receipt of a door lock switch lock or unlock signal, will switch the appropriate door lock actuator control circuits to battery positive voltage. The opposing side of the door lock actuators are connected to ground internally within the BCM through the other door lock actuator control circuit and the doors will lock or unlock appropriately.
With out have a factory GM tech 2 scan tool ,It would be best if you took this to a Chevy dealer . The first part of diagnosing this problem is to hook up a scan tool !

Wiht
There
How to test computer controlled door locks

Aug 25, 2015 | Cars & Trucks

3 Answers

2001 volvo v70 tailgate lock/unlock relay location. Tailgate not locking checked fuses, no sound from tailgate, however do get click sound from fuse area.


Check the wiring to the rear hatch. The cables break and cause a variety fo problems like yours. You will have to take the plastic cover off and expose the cables.

Mar 01, 2015 | 2001 Volvo V70

2 Answers

I have a 1998 chevy suburban. The dome lights don't work. checked fuse box under hood. All good. Are there other fuses on the truck?


Instrument Panel Fuse Block
The instrument panel fuse block access door is
located on the driver side edge of the instrument panel.

Pull off the cover to access the fuse block.

The vehicle may not use all of the fuses shown.

Fuses Usage
1 Rear Seats
2 Rear Accessory Power Outlet
3 Steering Wheel Controls Back light
4 Driver Door Module
5 Dome Lamps, Driver Side Turn Signal
6 Driver Side Turn Signal, Stop lamp
7 Instrument Panel Back Lighting
8 Passenger Side Turn Signal, Stop lamp
9 Passenger Door Module, Driver Unlock
10 Power Door Lock 2 (Unlock Feature)
11 Power Door Lock 2 (Lock Feature)
12 Stop lamps, Centre High Mounted Stop lamp
13 Rear Climate Controls
14 Power Mirror
15 Body Control Module (BCM)
16 Accessory Power Outlets
17 Interior Lamps
18 Power Door Lock 1 (Unlock Feature)
19 Rear Seat Entertainment
20 Ultrasonic Rear Parking Assist, Power Liftgate
21 Power Door Lock 1 (Lock Feature)
22 Driver Information Centre (DIC)
23 Rear Wiper
24 Cooled Seats
25 Driver Seat Module, Remote Key less Entry System
26 Driver Power Door Lock (Unlock Feature)

Aug 23, 2011 | Chevrolet Suburban 2500 Cars & Trucks

1 Answer

Where is the door lock relay located on a 1999 ford explorer? Electric door locks blows fuses. After replacing a fuse, the door locks will only work for a short time then blows fuse. I know the fuse/relay...


  • Aux Relay Box #4 is in the rear driver's side removable panel with the tire jack.
  • This Relay box holds the Door Lock / Unlock relays (ice cube type). It also holds the Driver Door Unlock Relay and the ACC Lights Relay (rectangular relays).
  • Oct 17, 2010 | 1999 Ford Explorer

    1 Answer

    My power door locks stopped working. When I press


    The locks don't work from any switch or just the driver's door switch ? The door locks are controlled by the BCM - body control module , that's were the clicking you hear is coming from there are no fuse's that are marked for the locks , fuse's for the BCM .

    Door Lock System Components
    The power door lock system consists of the following components:
    • Driver door lock switch -- Uses a single signal wire for both lock and unlock switch activations
    • Front passenger door lock switch -- Uses a single signal wire for both lock and unlock switch activations
    • BCM -- Class 2 module which requires programming when replaced
    • Reversible door lock actuators in each of the doors
    • BCM PWR 15A fuse -- Located in the BCM fuse panel, supplies power for the door lock system

    The BCM PWR fuse supplies battery positive voltage to the BCM for the door lock system.
    The BCM supplies and monitors a reference voltage to the door lock switch through the door lock switch lock/unlock signal circuit. The door lock switch also receives a constant ground source. If a door lock switch is placed in the lock position, the reference voltage is taken directly to ground and the BCM senses 0.0 volts on the signal circuit. If a door lock switch is placed in the unlock position, the reference voltage is taken to ground through a 15k ohm resister that is internal to the door lock switches and senses approximately 2.9 volts on the signal circuit. This is how the BCM determines what portion of the door lock switch was activated.
    The BCM, upon receipt of a door lock switch lock or unlock signal, will switch the appropriate door lock actuator control circuits to battery positive voltage. The opposing side of the door lock actuators are connected to ground internally within the BCM through the other door lock actuator control circuit and the doors will lock or unlock appropriately.
    Vehicles without keyless entry have two internal drivers in the BCM to control the door lock actuators. All door lock and all door unlock. Vehicles equipped with keyless entry have three internal drivers in the BCM. 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.

    Body Control Module (BCM)
    Lower center of the I/P, just below the HVAC control assembly

    Mar 04, 2018 | 2004 Saturn ION

    2 Answers

    Power door locks on a 2004 chevy tahoe don't work


    The door locks on my 1999 tahoe stopped working and I checked the fuse, which was fine. The problem turned out to be that the fuse for my cigarette lighter was bad and for some reason it also must be working in order for the door locks to work. Put in a new cigarette lighter fuse and the door locks worked again!

    Jan 19, 2010 | 2004 Chevrolet Tahoe

    1 Answer

    Door locks stopped working


    check also the fuse of the door lock.

    Apr 15, 2009 | 2000 Volvo S70

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