Question about Ford F-150

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When changing a bulb in the front passenger side door (courtesy light bulb), It somehow arced (touched positive to ground) and it shorted, now my dome lighs, my cargo lights (exterior) and all of my interior courtesy lights will not work, I have checked all fuses and they are all good, what seems to be the problem here? is it a relay by chance?

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  • Matthew Robinson Jul 31, 2009

    Thank you for your input, you were correct, I did in fact miss a 15 amp fuse in my dash panel, thanks again for your time!!!

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  • 103 Answers

I would double check all of the fuses,under the dash and hood. Sounds like you might have missed 1. If ALL of the fuses are good and you do not find any broken/burnt wires,,,, I am afraid you took out the GEM module. That will be costly.

Posted on Jul 31, 2009

  • Doug Windsor Jul 31, 2009

    You are very welcome.

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1 Answer

Back doors on car locked cant open


I think you have a short circuit in "that headlight wire" that is causing the fuse to keep blowing due to a dead short.
Maybe a positive voltage wire that is touching the ground (metal part) on you car or touching some other connection.

Hope this helps.

Regards.

Dec 19, 2017 | Cars & Trucks

1 Answer

Where is the courtesy light switch in the drivers door on a 1998 Navigator


courtesy light switch , is door ajar switch an it's part of the door lock actuator . Light on coming on ? Not going off ? The ajar switch is a input to the GEM module , fords BCM - body control module . The GEM will energize a relay to turn on the lights .
The GEM will illuminate the interior lamps when any door is open or ajar. The interior lamps are; the dome lamp, the rear cargo lamp, the door courtesy lamp and the side rail lamps. The courtesy lamps will shut off when the doors are closed and the illuminated entry feature is not active or when the vehicle speed is greater than 5 mph (8 km/h). The interior lamps will not be reactivated until the vehicle speed is less than 3 mph (5 km/h) and a new door open warning lamp switch is received.
The GEM controls the interior lamps illuminated entry function by activating the interior lamp relay.
Mite be a good idea to have it check for DTC'S - diagnostic trouble codes .

B1322 Driver Door Ajar Circuit Short to Ground GEM GO to Pinpoint Test B . B1323 Door Ajar Lamp Circuit Failure GEM REFER to Section 413-01 . B1325 Door Ajar Lamp Circuit Short to Battery GEM REFER to Section 413-01 . B1330 Passenger Door Ajar Circuit Short to Ground GEM REFER to Section 417-02 . B1334 Decklid Ajar Rear Door Circuit Short to Ground GEM GO to Pinpoint Test C . B1338 Door Ajar RR Circuit Short to Ground

Mar 26, 2017 | 1998 Lincoln Navigator

1 Answer

2009g6 dome light comes on all by its self why


The dome lamp switch has 3 positions: DOOR, OFF, and ON. When in the DOOR position, the dome lamp operation is controlled by the body control module (BCM).The ON position provides a ground for continuous operation. Ground is provided at G302. The OFF position turns OFF any dome lamp operation. The courtesy lamps, may be manually turned ON by placing the instrument panel (I/P) dimmer switch in the DOME position. When the dome lamp switch is in the DOOR position, the dome lamp will illuminate when a door is opened. When a door is opened, the courtesy lamps turn ON. After all the doors have been closed, the courtesy lamps will remain illuminated approximately 10 seconds after the last door closes. When the driver places the dome lamp switch in the OFF position, the dome lamp will be disabled.

Do you hear any chimes when the light comes on ? Door ajar switch problem , maybe . Picture of car with door open light lit on the instrument cluster ? When does it come on , when driving or sitting still or both ?

You mite want to take it to a qualified repair shop and have it checked for DTC'S - diagnostic trouble codes .
DTC B2555 05: Passenger Compartment Lamp Control Circuit Short to Battery or Open
The body control module (BCM) applies battery voltage to the courtesy lamps through the courtesy lamps high control circuit. When any door is opened, the door ajar switch contacts close and the BCM receives a door-open input. If the BCM receives a door lock or unlock input or a rear hatch open input, the BCM will activate the courtesy lamp high control circuit, providing battery voltage to all of the dome lamps, reading lamps, rear compartment lamp, and vanity mirror lamps. In the event that any of these lamps were to remain illuminated for more than 20 minutes with the ignition switch in the OFF position, the BCM will deactivate the courtesy lamp high control circuit to prevent a total battery discharge condition.

Do you know how to do basic automotive electrical testing ? How to test inputs and outputs of a control module ? in this case the BCM - body control module ? Find wiring diagrams at
http://www.bbbind.com/free_tsb.html also watch this video ECM Inputs and Outputs Diagnosis

Jan 19, 2017 | 2009 Pontiac G6

1 Answer

I have a 2004 Silverado and when I open the passage door none of the inside lights come on but the drivers side does please help


The left and right front door courtesy lamps are controlled, and receive voltage and ground from the drivers door module (DDM) and the passenger door module (PDM) respectively. The body control module (BCM), DDM, and the PDM communicate through class II serial data for the lamp illumination commands and the door ajar switches.
The remaining courtesy lamps are controlled and receive voltage from the BCM. Voltage for the courtesy lamp supply voltage circuit and the backup lamp supply voltage circuit is from the TBC B fuse in the instrument panel fuse block directly through the BCM to these circuits. A short to ground on either of these circuits will open the fuse. Ground is provided to the footwell lamps and all courtesy/reading lamps at G203. Ground is provided to the right middle and right rear door at G306. Ground is provided to the left middle and left rear door at G302.
There could be a DTC - diagnostic trouble code stored in the BCM
DTC B2615
The body control module (BCM) receives a ground signal from the door jamb, liftglass/liftgate if equipped, or courtesy lamp switches requesting courtesy/dome lamp illumination. When this occurs, the BCM directly sends a voltage through the courtesy lamp supply voltage circuit illuminating the courtesy/dome lamps.
Voltage for the courtesy lamp supply voltage circuit as well as the backup lamp supply voltage circuit is from the left instrument panel fuse block TBC 2B 15-amp fuse directly through the BCM to these circuits
DTC B3801
The body control module (BCM) monitors the courtesy lamp switch signal circuit in order to determine when the courtesy/dome lamps should be illuminated. When the BCM senses that the courtesy lamp switch signal circuit is grounded when the switch is activated, the BCM will illuminate the courtesy/dome lamps.
Inspect the following related body control module (BCM), driver door module (DDM), and passenger door module (PDM) data parameters. Refer to Scan Tool Data List or Scan Tool Data Definitions for typical values and definitions:
?€¢
The courtesy lamp switch


?€¢
The interior lamp defeat switch


?€¢
The door ajar switches

Was a problem found?
Go to Step 7
Go to Step 10

Oct 20, 2015 | Cars & Trucks

1 Answer

Where is the location to replace overhead lights fuse in 2003 oldsmobile aurora


Rear fuse box. INT LP 10 amp . there is also INT LP relay in the same rear fuse box .
Fuse Block - Rear
Under the rear seat, on the left side of the floor pan
The INT LP fuse in the fuse block - rear supplies battery positive voltage to the normally open switch contacts of the INT LP relay. The INT LP fuse also supplies battery positive voltage to the INT LP relay control circuit. The fuse block - rear also supplies battery positive voltage to the relay control circuit for the front courtesy lamp. The door modules communicate on a simple bus interface (SBI). When you open any door, the switch contacts of the door open switch close. When a door open signal circuit is grounded, that door module sends a message to the drivers door module (DDM) in order to indicate that a door is open. The DDM sends a class 2 message to the rear integration module (RIM) in order to indicate which door is open. The RIM activates the INT LP relay in order to provide battery positive voltage to the interior courtesy lamps. When any front door is opened, the RIM will energize the FRT CTSY lamp relay grounding the I/Pcourtsey lamps at G302. Depending on which doors are opened, front or rear, the proper interior courtesy lamps illuminate. The RIM provides a pulse width modulated ground to all interior courtesy lamps for the interior lights theater dimming feature. Some of the courtesy lamps are also used as reading lamps, each reading lamp may be manually turned on or off using it's own respective switch

Sep 24, 2015 | Oldsmobile Cars & Trucks

1 Answer

2004 yukon slt courtesy light relay location


Here is a description of the courtesy lights , there is no relay ! Controlled by the BCM - body control module !
The courtesy/illuminated entry lamps, may be manually turned on or off by placing the interior lamp switch in the ON or OFF position. If an outside door handle is lifted or a door is opened, the courtesy/illuminated entry lamps illuminate. After all the doors have been closed the courtesy/illuminated entry lamps will remain illuminated approximately 15 seconds. The courtesy/illuminated entry lamps will also turn on prior to any door being opened, and remain illuminated approximately 40 seconds when the driver removes the ignition key. When the driver places the dome lamp defeat switch in the OFF position, the courtesy/illuminated entry lamps will be disabled.
The left and right front door courtesy lamps are controlled, and receive voltage and ground from the drivers door module (DDM) and the passenger door module (PDM) respectively. The body control module (BCM), DDM, and the PDM communicate through class 2 serial data for the lamp illumination commands and the door ajar switches.
The remaining courtesy lamps are controlled and receive voltage from the BCM. Voltage for the courtesy lamp supply voltage circuit and the backup lamp supply voltage circuit is from the TBC B fuse in the instrument panel fuse block directly through the BCM to these circuits. A short to ground on either of these circuits will open the fuse. Ground is provided to the footwell lamps and all courtesy/reading lamps at G203. Ground is provided to the right middle and right rear door at G306. Ground is provided to the left middle and left rear door at G302.

Mar 17, 2015 | Cars & Trucks

1 Answer

Passenger side brake light out


If the fuse is alright (brake and running lights) and the left side brake light works I would suspect a bad ground or socket.
You could use a test light to check if you have power to the bulb. Do this while the brake pedal is depressed. First remove the bulb in question ( look at the left lens a note position of brake light) just mirror the position. With bulb removed ground one end of the test light to a bare metal body part or ground wire. Use the needle end to test the exposed contacts. You will see then once you remove the bulb. One contact is battery + and the other is the ground. While the one lead is properly grounded if the probe touches the contact and the light 'lights' that means its getting power. If either of the contacts fails to light the test light you have a fuse or wire problem.

Through steps like above you can also check the ground by hooking the probe back wards. Connect the clip to the Bat. + and probe the other contact to make sure the ground is working.

Mar 09, 2014 | 1999 Dodge Stratus

1 Answer

I have a 2000 Pontiac Grand Am and the interior stay on


Interior Lights Circuit Description
By using a feature called inadvertent power control, the body control module (BCM) supplies power to all of the following components:
• The courtesy lamps
• The dome lamps
• The rear view mirror reading lamps
• The instrument panel compartment lamp
• The rear compartment lamp
The left front door ajar switch turns the interior lamps on through the BCM by grounding CKT 394. When the left front door is open, the switch is closed. This condition provides a ground and a door open input to the BCM. The BCM then grounds the following lamps through CKT 156 in order to turn the lamps on:
• The courtesy lamps
• The dome lamp
• The rearview mirror lamps
The right front door ajar switch and the rear door ajar switches turn the interior lamps on by grounding CKT 395 from the BCM.
When the ignition key is removed from the lock cylinder, the interior lamps remain on for approximately 40 seconds.
The BCM provides an interior lamps-on delay after a door is opened. The lamps remain on for approximately 40 seconds or until the ignition switch is turned to the ON position. The 40 second lamps-on delay reduces to 4 seconds if a door is opened within 2 minutes of the ignition switch being moved from the ON position. The interior lamps immediately turn off when the vehicle begins to move.
The dome lamp OFF-DOOR-ON switch controls the dome lamp. When the switch is in the OFF position, the dome lamp remains off. When the switch is in the DOOR position, the dome lamp lights when a door is opened by the BCM grounding CKT 156. When the switch is in the ON position, ground is supplied through CKT 750. The rear view mirror reading lamps are controlled by the rear view mirror reading lamps switch or through CKT 156 from the BCM.
Voltage is supplied at all times to the BCM through the INT LPS fuse. The BCM supplies voltage to the interior lamps through CKT 1732.

Battery Run Down Protection
When the ignition switch is in the OFF position, the BCM turns off the power to all of the interior lamps after 18-22 minutes.
The BCM will reset the inadvertent power control relay output when one of the following actions is performed:
• Open or close a door.
• Turn the ignition switch to the ON position.
• Turn off any interior lamps that may be on.
• Press the power door lock switch/keyfob button.
• Press the decklid release keyfob button.

Courtesy or Dome Lamps Always On
Step
Action
Yes
No
1
Did you perform the Lighting Systems Diagnostic System Check?
YES - Go to Step 2
NO - Go to Diagnostic System Check - Lighting Systems
2
Use the Scan Tool in order to command the courtesy lamps OFF.
Do the courtesy lamps turn OFF?
YES - Go to Step 4
NO - Go to Step 3
3
Test for a short to ground in the courtesy lamps control circuit (156). Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - System OK
NO - Go to Step 7
4
Test for a short to ground in each door jamb switch circuit:
• Circuit 394-Driver door
• Circuit 395-Passenger door(s).
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - System OK
NO - Go to Step 5
5
Test each door jamb switch for proper operation. Refer to the following:
• Open switch with the door closed
• Closed switch with the door open
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find a malfunctioning door jamb switch?
YES - Go to Step 6
NO - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
6
Replace the malfunctioning door jamb switch. Refer to Door Jamb Switch Replacement in Doors.
YES - Is the repair complete?
NO - System OK
--
7
Important: Perform the set up procedure for the body control module.
Refer to Body Control Module (BCM) Programming/RPO Configuration .
Replace the body control module. Refer to Body Control Module Replacement in Body Control System.
Did you complete the replacement?
System OK
Instal the door jamb switch wire harness.
Install the door jamb switch (2).

Feb 24, 2018 | 2000 Pontiac Grand Am GT

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.

Apr 16, 2017 | 2004 Ford Crown Victoria

1 Answer

Door chime and courtesy light (under side mirror)


     You have broken wires in the flexable harness between the door and the body. Pull the rubber boot back to inspect.

Nov 15, 2008 | 2002 Ford Explorer

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