Question about 1998 GMC Jimmy

1 Answer

Courtesy lights (ceiling and door panel lights) will shut off if ignition is started but after shut off and I open and close either door the interior lights stay on long after the 20 second timer is supposed to shut them off. Thumbwheel is in the correct position. Save my battery, please. Thanks PS. It has been over 100 degrees here for over a week now.

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  • 4 more comments 
  • raynotpaul
    raynotpaul Aug 01, 2009

    Thanks for your quick response, but these lights have been on for over an hour now and counting. And this isn't a '98 Jimmy , it's a '98 GMC Sierra 2wd but I don't think it'll make any difference.

  • raynotpaul
    raynotpaul Aug 01, 2009

    Found and pulled the fuse for now.

  • raynotpaul
    raynotpaul Aug 01, 2009

    Found and pulled the fuse for now.

  • raynotpaul
    raynotpaul Aug 01, 2009

    Where do I find the timer relay? Thanks again.

  • raynotpaul
    raynotpaul Aug 01, 2009

    Where do I find the timer relay? Thanks again.

  • raynotpaul
    raynotpaul Nov 11, 2009

    Better late than never, I guess. Turns out that the passenger side door switch was working intermittently and was tightened up as best it could be. It is "sort of" broken but has been working fine for a couple of months now. Thanks for your time.

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Some lights do that on my chrysler they'll stay on for up to a minute that shouldn't kill your battery. As long as they go off you should be ok

Posted on Aug 01, 2009

  • Shawn Henderson Aug 01, 2009

    I wonder if the botton in your door is getting jammed or if your swithch is any good. You can pull the fuse to save your battery til you find out the problem i'll do a little more research get back to me and i should have the solution

  • Shawn Henderson Aug 01, 2009

    Looks like that vehicle has a timer relay that goes out so im taking that could be the problem replace the timer relay and you should be good to go

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1 Answer

I have a 2007 Buick Lucerne and the front reading lamps won't turn off.


Overhead Console Lamp and Roof Rail Courtesy/Reading Lamps
The courtesy/reading lamp is a duel purpose lamp that can be illuminated two different ways. First, the lamp can be turned ON during courtesy lamp operation as described above. Second, the lamps can be turned ON individually for reading lamp operation by the lamp switch. The BCM supplies battery voltage from the INT LAMPS fuse through the inadvertent power courtesy lamps circuit to the courtesy/reading lamps for reading lamp operation only. Ground for the courtesy lamp module or the roof/rail reading lamps is provided at G402

Courtesy Lamps
When either one of the front doors is opened, ground is applied through the door latch door open switch and the door open switch signal circuit to the door module indicting the door open position. In response to this signal, the door module sends a GMLAN serial data message to the BCM of the door open position. Or, when either one of the rear doors is opened, ground is applied through the door latch door open switch and the rear door open switch signal circuit to the BCM is indicating the rear door open position. Once a door open message or signal received, the BCM will then apply battery voltage from the CTSY/RF TRN fuse through the courtesy lamp supply voltage circuits illuminating the lamps listed below:
• Overhead console lamp
• Roof rail courtesy lamps
• Footwell courtesy lamps The BCM receives battery voltage from the INT LAMPS fuse in order to supply power to the inadvertent courtesy lamps. Inadvertent power courtesy lamp feature provides a similar function for the interior lamps as a retained accessory power feature. The BCM will energize the courtesy lamps supply voltage circuit when the BCM is in the active state (awake). When the inadvertent power courtesy lamps supply voltage circuit is energized, it supplies voltage to all the interior lights listed below. The BCM will continue to supply voltage to the interior lamps after the ignition is turned OFF so that the interior lamps may be operated.
• Overhead Console Reading Lamps
• Roof Rail Reading Lamps
• Vanity Mirror Lamps
• I/P Compartment Lamp
• Rear Compartment Courtesy Lamp
In the event that any of these lamps were to remain illuminated for a period of more than 20 minutes with the ignition switch in the OFF position and no BCM input activity, the BCM will deactivate the inadvertent power supply voltage circuit to prevent a total battery discharge condition. The BCM receives battery voltage from the CTSY/RF TRN fuse in order to supply power to the courtesy lamps. The BCM applies this voltage to the courtesy lamps through the courtesy lamp supply voltage circuits. When any door is opened, the door open switch contacts close and the BCM receives a door-open signal. If the BCM receives a door lock or unlock signal, the BCM will activate the courtesy lamp supply voltage circuit, providing battery voltage to the dome lamps and the left and right footwell courtesy lamps. The courtesy lamps can be manually activated by placing the interior lamp switch in the DOME position. For more detailed information concerning courtesy lamp operation refer to Interior Lighting Systems Description and Operation.

Jan 16, 2017 | Buick Cars & Trucks

1 Answer

Just got my 2003 explorer sport trac dome light dont come on when you open the doors but they come on when you push the button to turn them on how do I get them to come on when I open the doors?????


The instrument cluster illuminates the interior lamps when an unlock signal is received from the vehicle security module. The illuminated entry feature will be canceled when any of the following conditions are met:
  • 25 seconds have elapsed since the illuminated entry feature was activated and the interior lamp control is not activated (door ajar or courtesy lamp switch on).
  • The instrument cluster receives a request from the vehicle security module (remote transmitter lock button pressed) and the interior lamp control is not activated.
  • The ignition is in the RUN or START position and the interior lamp control is not activated.
The instrument cluster illuminates the courtesy lamps when any door is open or ajar. The courtesy lamps shuts 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 are not reactivated until the vehicle speed is less than 3 mph (5 km/h) and a new door open warning lamp signal is received.
The instrument cluster controls the courtesy lamps illuminated entry function by activating the battery saver relay.
The panel dimmer switch is integrated into the headlamp switch and controls the interior lamps by activating the instrument cluster through circuit 1034 (BK/WH).
The vehicle security module sends a signal to the instrument cluster on the UBP network circuit to indicate a request to turn the illuminated entry feature on or off.
The on-demand lamps, glove compartment assembly, homelink module, puddle lamps and illuminated vanity mirrors are controlled by the battery saver relay. The battery saver relay becomes active (relay coil is energized) when the instrument is in the awake mode, or in the sleep mode (relay coil is de-energized).

Nov 28, 2016 | 2003 Ford Explorer Sport Trac

1 Answer

My interior light won't come on in my 1999 Buick Lesabre. I have checked the bulb & the fuse. Can anyone help me with this problem? Any ideas are sincerely appreciated.


Courtesy Lights
The courtesy lights come on under the following conditions:
?€¢
Any door is opened.


?€¢
The interior lamp switch is in the ON position.


?€¢
The keyless entry transmitter unlocks the doors (illuminated entry).

When the key is removed from the ignition switch with all of the doors closed, the courtesy lights light for approximately 25 seconds before fading out.
Battery positive voltage (B+) is applied at all times through the IP fuse block CTSY LP/PWR MIR fuse 6A via CKT 640 (ORN) through the body control module (MALL) to the courtesy lights via CKT 1732 (ORN). The MALL provides a ground through CKT 156 (WHT) for the courtesy lights under the following conditions:
?€¢
The MALL receives an input from a door being opened.


?€¢
The MALL receives an input from the interior lamp being turned ON.


?€¢
The MALL receives an input from the doors being unlocked using the keyless entry transmitter.

The courtesy lamps then light.
When the courtesy lights are activated by opening and closing a door, the courtesy lights will remain on for approximately 25 seconds before fading out after all of the doors are closed. If the ignition switch is turned to START or RUN within the 25 seconds, the lights immediately begin to fade out. If a door is left open, the MALL removes battery positive voltage (B+) to the courtesy lights after 10 minutes. When the courtesy lights are activated by the interior lamp switch, the lights remain on as long as the interior lamp switch is in the ON position. When the courtesy lights are activated by unlocking the doors using the keyless entry transmitter, the lights remain on for approximately 40 seconds. If the doors are locked using the keyless entry transmitter within the 40 seconds, the lights immediately begin to fade out.
Body Control Module (MALL) Diagnostic Mode
For a detailed explanation of the MALL module diagnostic mode, refer to Body Control Module Cell 51.
What interior light ? Dome , courtesy lights etc....They don't work with switch, keyless entry , door opening ?
What

Dec 03, 2015 | Buick Cars & Trucks

2 Answers

Interior lights


This is both a courtesy and safety issue on many high end vehicles. The light from the interior lights can cast enough light to get to front door and possibly show dangers in your path. And after first getting into you car and starting it, you can check the back seat for any unwanted hitchhikers. As for the 10 minute timer, I don't know if this can be adjusted. A Chiltons/Haynes repair manual for you car may have that answer, or, the Buick dealership shop foreman. Best of luck.

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2 Answers

2009 dts inside lights stay on


this could be a door switch problem or a BCM problem. access the BCM for codes and data this will help. check to make sure the headlight switch for the interior lights is in the off position.

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1 Answer

2002 ford expedition interior lights are not on what fuse is it?


Courtesy Lamps - central junction box. fuse # F1.21 that goes to interior lamp relay in the instrument cluster and F.24 this fuse powers battery saver relay .
Interior Lighting The interior light system consists of the following:
  • front map lamp assembly
  • front door courtesy lamp
  • generic electronic module (GEM)
  • glove box lamp assembly
  • central security module
  • interior lamp switch
  • interior lamp relay
  • illuminated vanity mirrors (Navigator only)
  • reading lamp assembly
  • rear courtesy lamp
  • running board lamp
  • underhood lamp assembly
  • The generic electronic module (GEM) illuminates the interior lamps when an unlock signal is received from the remote anti-theft personality central security module. The illuminated entry feature will be canceled when any of the following conditions are met:
    • 25 seconds have elapsed since the illuminated entry feature was activated and the interior lamp control is not activated (door ajar or courtesy lamp switch on).
    • The GEM receives a request from the central security module (remote transmitter lock button pressed) and the interior lamp control is not activated.
    • The ignition is in the RUN or START position and the interior lamp control is not activated.
    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.
  • You have an electronic control module and relays involved in the operation of these lights also !

  • What

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    have you set the light switch to the courtesy light position , with the ignition on turn light switch so light is on then turn switch so light is off ,open door if light comes on that is the courtesy position if does not close door turn switch to the last position then open door light should be on close door light off,TURN IGN OFF EXIT AN LOCK VEHICLE INTERIOR LIGHTS WILL STAY ON FOR A FEW SECONDS THEN SLOWLY DIM .watch them before leaving

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    2000 chevy monte carlo door latch assy. replacement


    all the lights above the dash do not work ?????? DOME light's ??? No light's come on when you open the door or any door ? Wouldn't think all the door ajar switches bad at one time .
    Interior Lamps
    The interior lamps consists of two groups, lamps that can not be dimmed and lamps that can be dimmed. This first group consists of lamps that may not be dimmed. This Includes those lamps that may be manually turned on by placing the interior lamp switch to the DOME position, or by opening a door or a compartment:
    • Auxiliary dome lamp (SEO, RPO 6C7)
    • Dome lamp
    • instrument panel (I/P) compartment lamp
    • Inside rear view mirror lamps
    • I/P courtesy lamps
    • Reading lamps
    • Rear compartment courtesy lamp
    • Sunshade vanity mirror lamps
    Battery positive voltage is applied at all times to the DIC/RKE fuse and to the switched side of the BATT RUNDOWN PROTECTION relay in the right I/P junction block. The DIC/RKE fuse supplies battery positive voltage to the coil side of the BATT RUNDOWN PROTECTION relay. When the ignition is turned to the ON position, the body control module (BCM) provides a ground to the Inadvertent relay control circuit. This energizes the BATT RUNDOWN PROTECTION relay and applies battery positive voltage to I/P BRP fuse and to the TRK/ROOF/BRP fuse. Battery positive voltage is applied from the I/P BRP fuse to the I/P courtesy lamps, I/P compartment lamp and to the I/P compartment feed circuit to the BCM. Battery positive voltage is also applied from the TRK/ROOF/BRP fuse to the:

    If the BCM receives a door lock or unlock input signal, the BCM will activate the BATT RUNDOWN PROTECTION relay, which provides battery positive voltage to all interior courtesy lamps. When any door is opened, the door jam switch contacts close and the BCM receives a door-open input signal. The BCM then applies a ground to the theater dimming ground control circuit illuminating the courtesy and dome lamps.
    After all the doors are closed, the courtesy lamps remain illuminated for approximately 40 seconds. The courtesy lamps will also turn on and remain illuminated for approximately 15 seconds after the ignition key is removed, prior to any door being opened.
    When the headlamp switch is placed in the DOME position, the BCM receives a ground signal. The BCM then applies a ground to the theater dimming ground control circuit. This illuminates the dome and roof rail lamps.
    The courtesy lamps will normally turn off using the theater dimming feature. The BCM provides a pulse width modulated ground to all courtesy/reading, dome, and inside rear view mirror lamps for the theater dimming feature. The BCM will immediately turn off the courtesy lamps if a door lock command is received with all the doors closed, or if the ignition switch is turned to either the ON or RUN position.
    The BCM activates the interior lighting output 15 seconds after receiving the class 2 message "Airbags Deployed" from the sensing and diagnostic module (SDM). The interior lamps remain activated for 25 minutes.

    The door ajar switch is part of the lock actuator inside the door !

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    Is it an old van? Can you see on the door frame a switch does it come out when the door is opened (push in and out a few times). 3 position switch on always / off always and door switch?

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