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Rear light and stoplight dont work - 2003 Ford Focus

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Well id start simple. First check your fuse, then check your relays(under the hood). If fuses are good, check the bulbs themselves, when you take them out, look at them to see if they are still linked together(by the way, wear gloves, oil from your fingers can blow out the bulbs). If the bulbs are good, pull back the carpet in the trunk are to make sure the wires are still connected. If everthing is good, id suspect it your lighting control module.

Posted on May 24, 2011

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My running lights are working just fine no brake lights any suggestions? 1999 Lincoln continental


Brake light switch ? Lighting control module , fuse's ?
The stoplight switch is protected by Fuse 32 (15A). This fuse is hot at all times. With the stoplight switch closed, power is provided to the stoplamps through the lighting control module through Circuits 9 (LG/O) and 5 (O/LB). Ground is provided to the stoplamps through Circuit 57 (BK).
Symptom Chart-Stoplamps
Refer to the Electrical and Vacuum Troubleshooting Manual for connector numbers cited in the pinpoint tests. Use Rotunda 88 Digital Multimeter 105-R0053 or equivalent to perform pinpoint tests.
Symptom Chart-Stoplamps Condition Possible Source Action
  • No Communication With Lighting Control Module
  • Circuitry.
  • Lighting control module.
  • GO to Pinpoint Test BA .
  • Stoplamps Inoperative
  • Open fuse.
  • Circuitry.
  • Lighting control module.
  • GO to Pinpoint Test
You may want to take to a repair shop !

PINPOINT TEST BB: STOPLAMPS INOPERATIVE BB1 TEST STOPLAMPS
  • Press stoplight switch.
  • Check stoplamps and rear high mount lamp.
Are lamps on? Yes No RELEASE switch and make sure that lamps turn off. CHECK Fuse 32 (15A). REPLACE open fuse if open, RESTORE vehicle, RETEST. If fuse is good, GO to BB2 . BB2 TEST STOPLIGHT SWITCH INPUT
  • Connect Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent to data link connector.
  • Enter diagnostic data link.
  • Enter lighting control module.
  • Enter PID/data monitor and record.
  • Select PID: BOO_LCM - Stoplight Switch Status.
  • Hold stoplight switch.
Does data display read ON? Yes No GO to BB5 . GO to BB3 . This is with a factory scan tool , a code reader will not work !
BB3 TEST FOR VOLTAGE AT STOPLIGHT SWITCH
  • Test for voltage at input Circuit 10 (LG/R) to stoplight switch connector C253 .
Is B+ present? Yes No GO to BB4 . SERVICE Circuit 10 (LG/R) feeding stoplight switch. RETEST system. BB4 TEST VOLTAGE OUTPUT AT STOPLIGHT SWITCH
  • Test for voltage at output Circuit 511 (LG) of switch connector C253 .
  • Press stoplight switch.
Is voltage B+ at the switch? Yes No SERVICE Circuit 511 (LG). RETEST system. REPLACE stoplight switch. RETEST system. BB5 TEST POWER TO LIGHTING CONTROL MODULE
  • Disconnect connector C207 from lighting control module.
  • Test for voltage at connector Pin C207 , Circuit 907 (Y/W) and Pin C207 , Circuit 906 (R/O).
Is voltage B+? Yes No GO to BB6 . SERVICE Circuits 906 (R/O) and/or 907 (Y/W). RETEST system. BB6 TEST OUTPUTS
  • Using jumper wires, short Pin C207 , Circuit 907 (Y/W) to Pin C207 , Circuit 9 (LG/O). Using jumper wires, short Pin C207 , Circuit 906 (R/O) to Pin C207 , Circuit 5 (O/LB).
Do stoplamps illuminate? Yes No REPLACE lighting control module. RETEST system. SERVICE Circuits 5 (O/LB) and 9 (LG/O) for open circuit or damaged bulbs. REPLACE open bulbs as necessary. RESTORE vehicle, RETEST. This is Lincoln factory service info !

Jul 04, 2015 | Lincoln Cars & Trucks

1 Answer

Brake light not working


THERE IS A FUSE, USUALLY IT WILL BE LABELED STOP. THE ONE THAT SAYS BRAKE MAY BE FOR THE ABS TWO DIFFERENT THINGS. { REPLACE THE STOP FUSE } . IF THE STOPLIGHT SWITCH IS BAD, IT IS NOT EASY TO CHANGE. IF THE TURN SIGNALS ARE WORKING IN THE REAR OF THE TRUCK, THAT MEANS THE BULBS ARE O.K. A BAD TURN SIGNAL SWITCH CAN ALSO KEEP THE STOPLIGHTS FROM WORKING, { LAST RESORT, EXPENSIVE & HARD TO REPLACE }

Dec 28, 2010 | 1996 Chevrolet C1500

1 Answer

No brakes. All lights working but brake lights. Replaced stoplight switch, checked fuels and replaced brake light relay. Still no brake lights


Check the adjustment of the stoplight switch to make sure it's totally releasing and check the ground in your rear light assembly.

Did they work and just quit??

Aug 05, 2010 | 1997 Chevrolet C1500

1 Answer

The brake lights do not work on my 2000 Mitsubishi Montero. The rear lights work but no the brake lights


check the bulbs if not the bulbs check the stoplight switch theres not to many things that will allow you to not have brakes

Mar 08, 2010 | 2001 Mitsubishi Montero

2 Answers

95' Buick regal, 3rd brake light works, tail lights work, turn signals work, stoplight switch seems to work ie 3rd brake light working, fuse is ok, changed bulbs, but no rear brake lights.


If the third brake light works and the regular ones don't, it is most likely a bad turn signal (multifunction) switch. The switch is able to kill the brakes lights to run the turn signals, and in rare circumstances does this. I've seen it several times. It could also be wiring, especially near the turn signal switch, but it is usually the switch.

Nov 25, 2009 | 1995 Buick Regal

1 Answer

My brake light remains on as if i were braking and i need to remove the fuse in order to maintain the battery what could it be


THE problem is the Stoplight switch and thats on the Brake pedal its a quear looking thing but they work very well but yours could be stuck or just shorting but dont drive without stoplights..
Get it off and get a new one..

Oct 15, 2009 | 1999 Jeep Grand Cherokee

1 Answer

2001 Toyota Camry trunk stoplights won't work


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I am glad the I was able to assist you with your problem.


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I'd really appreciate it. Thanks in advance.

Jan 22, 2009 | 2001 Toyota Camry

1 Answer

Brake lights out at separate times, but both bulbs okay.


i would double check the bulbs, i dont know much about escapes but most cars run a twin filament bulb, one is for taillights, the other for stoplights, if its not that it may be a brake sensor fault or somethings shorting out somewhere.

Jan 04, 2009 | 2005 Ford Escape

1 Answer

No brake lights


if third brake lt works it wouldn't be stoplight switch, either a wiring problem or the modules went bad again, do you have power at the modules when they are unplugged

Nov 12, 2008 | 1999 Chevrolet Silverado 1500

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