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On off power light blanks and control will not operate

Posted by Robert yardley on

  • Anthony Cardenas
    Anthony Cardenas Jan 07, 2018

    Hi Robert yardley, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?

    NO CLUE what you are writing about!



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I had my passenger headlight bulb replaced. Now when I go to start my 2009 buick lacrosse, my horn honks, wipers come on, trunk pops open and loud bass static on my radio.

Who replaced the headlamp bulb ? Take it back . Everything your having problems with are all controlled by the BCM - body control module . May have crossed wire's ,shorted etc....
This vehicles BCM functions as the Power Mode Master (PMM). Refer to Power Mode Description and Operation for a complete description of the power mode functions.
Body Control Module
The various body control module (BCM) input and output circuits are described in the corresponding functional areas indicated on the BCM electrical schematics. The BCM functions include the following:
• Battery rundown protection--Inadvertent power--Refer to Interior Lighting Systems Description and Operation .
• BTSI/automatic transmission shift lock control--Refer to Automatic Transmission Shift Lock Control Description and Operation .
• Bulb check--Refer to Instrument Cluster Description and Operation .
• Chimes--Refer to Audible Warnings Description and Operation .
- Check gages
- Content theft deterrent
- Door ajar warning
- Headlamps ON
- Key-in-ignition
- Oil reset
- Park brake warning
- Seat belt not fastened
- Turn signal ON
- Vehicle theft deterrent
• Door lock interface--Refer to Power Door Locks Description and Operation .
• Exterior and interior lighting control--Refer to Exterior Lighting Systems Description and Operation .
- Automatic lighting control
- Backup lamps
- Daytime running lights (DRL)
- Fog lamps
- High/low beam head lamps
- Park brake lights
- Turn hazard lamps
• Gage control--Refer to Instrument Cluster Description and Operation .
• Heated seats--Refer to Heated Seats Description and Operation .
• Horn interface--Refer to Horns System Description and Operation .
• Instrument cluster indicator control--Refer to Instrument Cluster Description and Operation .
• Interior lighting--Refer to Interior Lighting Systems Description and Operation .
• Key-in-ignition sensing--Refer to Audible Warnings Description and Operation .
• Parking brake state sensing--Refer to Brake Warning System Description and Operation .
• Retained accessory power (RAP)--Refer to Retained Accessory Power (RAP) Description and Operation .
• Rear compartment interface--Refer to Power Door Locks Description and Operation .
• Rear defogger--Refer to Rear Window Defogger Description and Operation .
• Remote function control--Refer to Keyless Entry System Description and Operation .
• RFA communication link--Refer to Keyless Entry System Description and Operation .
• Seat belt use sensing--Refer to Seat Belt System Description and Operation .
• Theft deterrent vehicle/content--Refer to Content Theft Deterrent (CTD) Description and Operation or Immobilizer Description and Operation .
• Washer solvent level sensing--Refer to Wiper/Washer System Description and Operation .
• Wiper/washer--Refer to Wiper/Washer System Description and Operation .

May 07, 2018 | Buick Cars & Trucks

1 Answer

Frigidaire model ffu2065fw1 light and alarm works but the control module is blank???

Good Morning Friend,

I understand that the light and alarm are working fine on your Frigidaire freezer, model# FFU2065FW1. I also see that you are receiving power to the control module, however it is blank. I suggest resetting your appliance, by either unplugging it or shutting the power off at your home's circuit breaker, for 3-5 minutes. Restore power and try adjusting the temperature. I ask that you please follow up with a comment on the post, at your convenience, to advise if further troubleshooting is needed or if your appliances status has changed successfully.

-Best Regards-

Jun 21, 2014 | Frigidaire Freezers

1 Answer

My scanjet 7000n control panel is blank even after turning it on

Sounds like the main circuit board fried. You can't repair it, thus replacement is the only option. That will not guarantee normal operation and your taking a chance one way or the other.

Jan 13, 2018 | HP ScanJet Office Equipment & Supplies

1 Answer

HI i have a toro DCC control box and after coming back from holiday my sprinklers wouldnt work. I noticed on my Control box that the screen was blank so i changed the 9V battery thinking it was that. the...

Remove the battery. Unplug the timer. Make sure that the front of the timer is properly connected to the internal board. Plug the timer back in. Try to operate the timer using manual watering. The battery is only for backup, don't install it until you get the timer to operate on ac power first.

Jan 03, 2011 | Garden

1 Answer

I have a furnace 90+ . I have no power at the led, blank screen, and the blower will come on. The furnace is tied into a control panel. I can jumper the the unit at the furnace to have the A/C...

either a thermal switch is open or the pressure switch is closed at start up the system checks all of these before sending power to the T-Stat

Sep 29, 2010 | Heating & Cooling

1 Answer

I have a Samsung RF4287HARS. I opened the refrigerator compartment doors and the lights did not come on. Same condition for the freezer. I believe that the unit is operating (as i could hear the faint...

Pc code is saying there was a momentary power loss. Try resetting the control panel by depressing power frig and power freeze for more than 8 seconds. You may have to unplug the unit for 20 minutes if the compressor it very hot and not starting. You may have to depress power frig and power freeze to reset the units control panel to restart the compressor after the 20 min let the cooling system stabilize period.
If after all of this you still have issues with the lights or the unit is not working properly just repsond here and we will help you.

Thanks for Choosing FixYa. Kelly

Sep 29, 2010 | Samsung Refrigerators

1 Answer

Fan and light keep running and panel is blank

mcdevito75 here, Sounds as though the control board could be faulty, check with any appliance repair center in your area.

Jul 09, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

No power to top draw?

No power to the top drawer needs to be verified.

Are you saying the lights are blank and when you press the start buttion nothing happens?

One reason the controller can shut the power is that the heater overload protection thermal resistor has opened. Unfortunately the only way to fix this is to replace the entire heater plate at the bottom of the drawer.

To confirm if the controller is operational or not, press Keylock and Start/ Pause button together for 5 sec (press Keylock first) and see if the Lights light up. If nothing happens then either the power has shutoff as mentioned above or controller is faulty.

Feb 07, 2010 | Fisher and Paykel 23 in. DD-603SS Built-in...

1 Answer

I have a dell monitor that the power light is on but yet the screen is blank? Changed both vga cable & power with no effect?


Pls check that the your system is working or hang on the blank screen .For system check pls press the Num lock button on your keyboard its on/off or not.If your keyboard Num lock button is on/off then Problem with your Monitor might be might be EHT is faulty its better call vendor for repair.If system hanged on blank screen then problem with your RAM OR Hard disk or Operating system.
For Hard disk pls remove the power cable from Hard disk and on the system if not resolve then

Go for RAM,remove the RAM chip and re-installed another goods RAM ano on the system, If still blank screen then Problem with Operating System .Get it re-installed Operating system

Nov 16, 2009 | Dell E173FP 17" LCD Monitor

1 Answer

Blank display

If the printer control panel is blank when you turn on the printer, check the following items.
1 Make sure that the printer is plugged into an active electrical outlet receptacle that delivers the
correct voltage.
2 Make sure that the on/off switch is in the on position.
3 Make sure that the fan runs briefly, which indicates that the power supply is operational.
4 Make sure that the control-panel display wire-harness is connected. See the hint in the
procedure for Top cover.
5 Remove any HP Jetdirect or other EIO cards, and then try to turn the printer on again

Apr 04, 2008 | HP LaserJet 4250n Printer

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