Question about 1998 Mazda 626

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Interior lights work when switch is on... but do not work when door is open, its not getting a ground form the switches in the door... I need to know how the ground form the switches link up with the ground in the dome light...

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SOME OF THE SWITCHES ARE SELF GROUNDING AND SOME HAVE A GROUND WIRE YOU WILL HAVE TO REMOVE A SWITCH TO SEE WHICH IS YOU CASE

Posted on Sep 05, 2009

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Dome lights won't work on my 2005 Chevy equinox


The courtesy lamp supply voltage circuit of the body control module (BCM) supplies battery positive voltage to the dome lamp, the liftgate lamps, and the map lamps. When any door is opened, the door jamb switch contacts close providing a door open input to the BCM. The BCM then provides a ground to the interior lamps with the switch in the AUTO position. The interior lamps receive a ground at G401 with the switch in the ON position.
The following lamps may be manually turned ON by placing the interior lamp switch in the ON position, or by opening a door while the switch is in the AUTO position.
?€¢
The dome lamp


?€¢
The liftgate lamps


?€¢
Courtesy/map lights


You can't turn them on manually ?
This could be a BCM problem , this best left to a ASE certified repair shop or the dealer .

Dec 27, 2015 | 2005 Chevrolet Equinox

1 Answer

Can't get dome lights on when door is opener even with override switch off?


The following lamps may be manually turned ON by placing the interior lamp switch in the ON position, or by opening a door while the switch is in the AUTO position.
?€¢
The dome lamp


?€¢
The liftgate lamps


?€¢
Courtesy/map lights

The courtesy lamp supply voltage circuit of the body control module (BCM) supplies battery positive voltage to the dome lamp, the liftgate lamps, and the map lamps. When any door is opened, the door jamb switch contacts close providing a door open input to the BCM. The BCM then provides a ground to the interior lamps with the switch in the AUTO position. The interior lamps receive a ground at G401 with the switch in the ON position.
Important: If the liftgate is opened after all the modules go to sleep, the dome light will not come on. The liftgate ajar switch input to the BCM will not wake up the BCM once it has gone to sleep, so the dome light will not come on. Once the BCM gets an input to wake it up, from remote keyless entry (RKE) or a door handle, the dome light will turn on when the liftgate is opened.
If the driver inadvertently leaves any interior lamp ON, the BCM will turn it OFF after a 20 minute time-out.
The courtesy lamps will turn OFF immediately if the ignition switch is turned to the ON position or approximately 20 seconds after all doors are closed.
The courtesy lamps are controlled by the body control module (BCM). Inputs from the dome lamp switch and the door ajar switches are monitored by the BCM. When a door ajar switch is closed, or the dome lamp switch is turned to the ON position, the BCM supplies the B+ for the courtesy lamps.
With out a factory Tech2 scan tool or equivalent an knowing how these systems work ,you best bet is to take your vehicle to the dealer or some other ASE certified repair shop !

Sep 04, 2015 | 2009 Buick Enclave

2 Answers

Where is the interior light relay on 2001 ford windstar


Your interior lights are controlled by the GEM - generic electronic module !
Battery Saver The battery saver relay is controlled by the generic electronic module (GEM) and is located in the fuse junction panel. The battery saver relay is designed to supply B+ voltage to the following:
  • dome and map lamp switches
  • visor lamps
  • glove box lamp switch
  • interior lamp switch
  • interior courtesy lamp relay
  • delayed accessory relay
The function of the battery saver relay is to prevent excessive battery drain by interior lighting circuits. The GEM supplies a ground signal to the battery saver relay anytime one of the wake-up inputs of the GEM is activated to operate the battery saver relay. A wake-up command is sent when:
  • any door becomes ajar or is opened or closed.
  • the ignition key is inserted or removed.
  • the ignition switch is turned from OFF to RUN.
  • the ignition switch is turned from OFF to ACC.
  • a wake-up request is received from the remote anti-theft personality (RAP) module (if equipped).
  • The GEM will maintain the ground input with ignition in RUN or for 40 minutes from the last input activation with ignition in the OFF position. After 40 minutes the ground signal is discontinued.
This de-engergizes the battery saver relay preventing B+ voltage supply to the controlled switches and circuits.
  • Courtesy Lamp On Continuously
  • Short to power.
  • Damaged switch.
  • Generic electronic module.
  • GO to Pinpoint Test AF .
PINPOINT TEST AF: COURTESY LAMPS ON CONTINUOUSLY AF1 PRELIMINARY CHECKS
  • Check connections for clean tight fit.
  • Check for loose or damaged wires.
Do components and wiring check OK? Yes No GO to AF2 . SERVICE or REPLACE as required. GO to AF2 . AF2 CHECK CIRCUIT 53 (BK/LB)
  • Remove interior lamp relay.
  • Measure voltage at interior lamp relay connector Pin 87, Circuit 53 (BK/LB).
Is voltage greater than 0 volts? Yes No SERVICE Circuit 53 (BK/LB) for short to B+. RESTORE vehicle. RETEST system. GO to AF3 . AF3 CHECK CIRCUIT 434 (LB/BK)
  • Measure resistance between interior lamp relay connector Pin 85, Circuit 434 (LB/BK) and ground.
Is resistance 5 ohms or less? Yes No SERVICE Circuit 434 (LB/BK) for short to ground. RESTORE vehicle. RETEST system. REPLACE interior lamp relay. RESTORE vehicle. RETEST system. Interior lamp relay is located in the Instrument panel fuse box .
I/P Fuse Panel (Located Below Driver's Side of I/P )

Feb 28, 2015 | 2001 Ford Windstar

1 Answer

Interior lights


Door switch operation when drivers door pin switch open position; poor ground circuit control. Try wiggle testing pin switch. Harness is routed from door switch along floor board rocker sill.

Nov 27, 2012 | 2001 Chrysler Sebring

1 Answer

None of interior lights do not come on when I open the door.


Does your dome light turn on manually? If not you may need a bulb. If the light works manually, be sure it is set for using the door switch. All that said, the door switch often fails because it has a bad grounding to the door post. Try improving the switches mounting. If you can remove the wire from the switch and touch it to a good ground and the lite works......youi need a new switch

Mar 20, 2011 | 1997 GMC Sierra

1 Answer

Dome light doesn't work nor does the cargo light, both have power when grounded.


Oddly enough if the lights get power and work when grounded, then all the door switches that act as grounds must have gone bad at the same time. Although most interior light also have a switch directly on the fixture that allows being turn always on or always off, as well as working when the door ground switch is opened.

Sep 28, 2010 | Chevrolet Silverado 1500 Cars & Trucks

2 Answers

The interer light does not turn on on my 1995 honda accord


there should be a switch on the light it self switch is in wrong poiston.

Apr 09, 2009 | 1994 Honda Accord

1 Answer

Interior light and diagnostic plug doesn't work


The data link gets it's power from fuse no. 3(20 amp) in the interior fuse panel,which also is the power for cig. lighter. This fuse gets it's power from fuse no. 103 in the battery junction box (50 amp).

For the interior lights the door adjar switches in the door send a signal to the GEM module.It then grounds the coil side of the interior lamp relay. The switch on the dash that you turn on manually also grounds the coil side of the interior lamp relay so that would mean that everyrhing after the GEM is ok.Are the lights not turning on from any door including the deck lid? If not then problem would have to be in the GEM module.

Feb 26, 2009 | 2000 Ford Expedition

1 Answer

1997 Toyota corolla - warning noise when lights left on - not working on drivers side!


The ground circuit for the driver side door switch is compromised, or the door switch is bad. Try this: Remove the black rubber cover from the door swich. Using a 10 millimeter wrench or socket, loosen & tighten the switch retention bolt. See if the dome light flickers. If so, the ground on the switch is bad, & just needs cleaned up. If not, remove the switch, and touch the wire behind the switch to the body,or the bolt hole. If the dome light lights, you need a door switch. Your problem is entirely in the door switch/ground/wiring. Hope this helps, and thanks for choosing FixYa.

Oct 27, 2008 | 1997 Toyota Corolla

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