Question about 2004 Toyota Tacoma

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No dome light on tacoma

Feed wire to dome light on quad cab reads .32 volts when door is open. reading lights on rear view mirror work. comments based on looking at wiring diagram. wiring diagram also shows power windows

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  • Toyota Master
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The dome light gets 12 volt battery power at all times. The door switch, when the door is opened, allows the current to flow to ground, and completes the circuit. The door switch allows the ground to be made. Measure for 12 volts at the wiring connector, and measure for direct short at the ground wire, with the door open. The Ground wire is white with a black tracer.

Posted on Feb 27, 2009

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My dome lights mirrors or door locks want work if i have my door cloosed but if i turn dome light switch all the way on with door open it all works if i cut my dome light switch off with doors open mirrors...


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Dome light now working on a 2011 enclave. i looked at dome switch. what do i need to do?


Hello! If you have a multimeter and a little experience using it I'll send a very easy test procedure...If you do not have a meter send a comment...Remove the lens cover from the dome light...You'll see two wires...Orange and Black...Set the meter to read 12 volts...With the drivers door open Read across the Orange and Black wires with the dome switch off...If you do not read 12 volts the door switch is bad...
If you do read 12 volts turn the dome switch to on...if the bulb is good...The dome light switch is defective...But I doubt you will read 12 volts on the Orange wire to ground...More then likely the door switch is defective...Gently pry the door panel off...Use a screw driver with shrink tubing over the tip...
The wire colors on the switch are Tan and Yellow...It is a part of the latch assembly...You can replace it yourself, however since it's a 2011 its a warranty item...On the difficulty scale of 1 to 10 replacing the door switch is a 4...Guru.......Saailer

Feb 16, 2011 | Buick Enclave Cars & Trucks

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Replace passenger mirror


glass and motor availbable separately

Removal
NOTE: Do not remove the mirror assembly when repairing the individual mirror part. Individual mirror parts can be installed without removing the mirror assembly.
  1. Remove the front door trim panel; refer to Section 501-05.
  1. Remove the outside rear view mirror access water shield.
    gn1881a.gif
  1. Remove the speaker.
    1. Remove the screws.
    1. Disconnect and remove the speaker.
    gn1882a.gif
  1. Disconnect the outside rear view mirror electrical connector.
    gn1883a.gif
  1. Remove the outside rear view mirror.
    1. Remove the nuts.
    1. Remove the outside rear view mirror.
      • Feed the outside rear view mirror wiring through the opening in the front door.
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Oct 26, 2010 | 2003 Ford Ranger Regular Cab

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The rear cargo light won't turn off. This happened after I replaced a rear turn signal tail light bulb and a fuse for the horn. (These went out at the same time.) When the blinker light and horn were...


Hello! The instigator of this problem appears to be the the rear cargo lamp; Official name is rear dome light. You'll need a multimeter set on the X10 ohm scale to shoot this trouble. Leave the rear dome light bulb out. There are two switches involved; #1 the rear dome light on/off. #2 the right hand front door switch.

Pull the horn fuse out, remove the rear dome light cover, drop the rear dome light down to access the wiring and close all doors on the vehicle. Connect one lead of the ohm meter to the white wire and the other to body ground. If you read any resistance one or both of the two switches (dome light switch or right hand front door switch) is remaining closed when all doors are closed. Next disconnect the black lead from the dome light switch and see if reading changes to zero. If it does this is indicating that the dome light switch is defective. If it does not, disconnect the right hand door switch and take another reading at the same location. If you still measure any resistance, the black wire of the rear dome light is shorted to ground, if not then the right hand door switch is the culprit.

The reason the right hand door switch and not the left hand door switch is involved is the fact that opening the left front door would turn on the front dome light as well as the rear light. If both dome lights are staying on with all doors closed I would then involve both door switches in this test procedure. If your vehicle is a four door model then disconnect one door switch at a time while performing this test procedure.

The horn fuse also supplies power to the rear dome light, and I suspect the two events are related.


Guru..............saailer

Dec 13, 2009 | 1991 Chevrolet S-10 Blazer

1 Answer

2004 crown vic interior lights stay on


Don't think you have a door ajar switch problem , more then like the lighting control module is the culprit . Does the door ajar light on the instrument cluster stay lit ?
The interior lighting can be separated into two distinct modes of operation: the courtesy lighting and the demand lighting. The lighting control module (LCM) controls all of the interior lighting in the vehicle, as described in the following text.
The front dome lamps, rear reading lamps, and instrument panel courtesy lamps, can be illuminated either by opening any of the vehicle doors (courtesy lamp function) or by depressing the headlamp switch (demand lamp function).
When any door is open, the door ajar switch grounds an input to the LCM which then sends power to the courtesy lamps. The voltage sent to the courtesy lamps gradually increases from 0 volts to 12 volts within 500 ms (± 50 ms), to achieve the theater lighting effect. When the door(s) are closed the door ajar switch(es) break(s) the ground to the LCM input which then gradually reduces the power from 12 volts to 0 volts within 5 seconds. (± .5 second).
When the headlamp switch is depressed it grounds an input to the LCM which in turn sends 12 volts to the front dome lamps, rear reading lamps, and instrument panel courtesy lamps. When the headlamp switch is depressed a second time, it breaks the ground to the LCM input which then ceases to send power to the front dome lamps, rear reading lamps, and instrument panel courtesy lamps.

The battery saver will disrupt power to the courtesy lamps after 10 minutes, the demand lamps after 30 minutes, and the headlamps after 10 minutes. Turning the ignition switch to the RUN or ACC position will terminate the battery saver feature by disabling the interrupt timers and reinstate power to the lamps.
Do you know what DTC'S are ? diagnostic trouble codes !
LCM Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1322 Driver Door Ajar Circuit Short to Ground LCM Go To Pinpoint Test F . B1442 Door Handle Switch Circuit Failure LCM Go To Pinpoint Test G . B1445 Door Handle Switch Circuit Short to Ground LCM Go To Pinpoint Test G . B1563 Door Ajar Circuit Failure LCM Go To Pinpoint Test C . B1566 Door Ajar Circuit Short to Ground LCM Go To Pinpoint Test H . B1685 Lamp Dome Input Circuit Failure LCM Go To Pinpoint Test I . B1687 Lamp Dome Input Circuit Short to Battery LCM Go To Pinpoint Test I . - All Other DTCs LCM REFER to Section 419-10 .

PINPOINT TEST C: THE COURTESY LAMPS STAY ON CONTINUOUSLY CONDITIONS DETAILS/RESULTS/ACTIONS C1 CHECK THE SYSTEM OPERATION Open and close each door, making sure that each door is completely closed.
  • Are the courtesy lamps still illuminated after the 25 second time-out period?
Yes GO to C2 .

No The system is operating correctly. C2 TEST DOME LAMP SWITCH Depress the dome lamp switch.
  • Are the courtesy lamps still illuminated?
Yes DEPRESS the dome lamp switch a second time. GO to C3 .

No The system is operating correctly. C3 CHECK THE LIGHTING CONTROL MODULE
LCM C2145a

  • Are the courtesy lamps still illuminated?
Yes REPAIR circuit 53 (BK/LB). REPEAT the self-test. CLEAR the DTCs.

No INSTALL a new LCM. REFER to Section 419-10 . REPEAT the self-test. CLEAR the DTCs.

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1 Answer

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your door close switch is non-functional. its located in the door jamb. its a black button the size of a shirt button. usually held in by one or two screws.

there is one for each door.

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2004 Tacoma Quad Cab, Personal light and interior light on same circuit. Personal works works, interior does not, in manual nor door position. Interior light hot wire reds .3 volts. Interior light has...


Some other ares to check should include you room light switch, door courtesy switch, the wiring harness, or it could possibly be you body ecu.

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