Brake Lights Not Working
#1
11-14-2010 | 06:10 PM
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Brake Lights Not Working
2000 LSeries 2.2L V4. Tail light brake lights/upper brake light are not working. Checked each bulb and the elements are good (no breaks). Did have a few of the upper brake light bulbs out (noticed that a few days ago). Tail lights do work and the turn signals work as well - just no brake lights. If any of the bulbs in the upper brake light on the window fail, would that cause any type of electrical connection issue with no brake lights at all????
#3
11-14-2010 | 07:16 PM
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#4
11-14-2010 | 08:40 PM
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Joined: Jul 2008
Posts: 2,748
From: Riveria of America
Hmmmmmmmmmm -- OK
From the fuse, the signal runs on an ORG wire to the stop lamp switch, and then on LT BLU wire to the left instrument panel fuse box inside the car. From the fuse box, it now becomes three separate LT BLU wires, and goes out to each of the brake light fixtures at the rear of the car.
Use a voltmeter, and check for +12vdc on the ORG wire at the stop switch. Assuming the +12 vdc is present, jumper the switch to see if the brake lights come on. If they do, replace the brake light switch. If not, use the voltmeter to trace the LT BLU wire from the switch to the left instrument panel fuse box, and then out to the brake lights .....
Good Luck
From the fuse, the signal runs on an ORG wire to the stop lamp switch, and then on LT BLU wire to the left instrument panel fuse box inside the car. From the fuse box, it now becomes three separate LT BLU wires, and goes out to each of the brake light fixtures at the rear of the car.
Use a voltmeter, and check for +12vdc on the ORG wire at the stop switch. Assuming the +12 vdc is present, jumper the switch to see if the brake lights come on. If they do, replace the brake light switch. If not, use the voltmeter to trace the LT BLU wire from the switch to the left instrument panel fuse box, and then out to the brake lights .....
Good Luck
#5
03-25-2021 | 11:40 PM
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Joined: Mar 2021
Posts: 2
Jumper switch what do you mean
Hmmmmmmmmmm -- OK
From the fuse, the signal runs on an ORG wire to the stop lamp switch, and then on LT BLU wire to the left instrument panel fuse box inside the car. From the fuse box, it now becomes three separate LT BLU wires, and goes out to each of the brake light fixtures at the rear of the car.
Use a voltmeter, and check for +12vdc on the ORG wire at the stop switch. Assuming the +12 vdc is present, jumper the switch to see if the brake lights come on. If they do, replace the brake light switch. If not, use the voltmeter to trace the LT BLU wire from the switch to the left instrument panel fuse box, and then out to the brake lights .....
Good Luck
From the fuse, the signal runs on an ORG wire to the stop lamp switch, and then on LT BLU wire to the left instrument panel fuse box inside the car. From the fuse box, it now becomes three separate LT BLU wires, and goes out to each of the brake light fixtures at the rear of the car.
Use a voltmeter, and check for +12vdc on the ORG wire at the stop switch. Assuming the +12 vdc is present, jumper the switch to see if the brake lights come on. If they do, replace the brake light switch. If not, use the voltmeter to trace the LT BLU wire from the switch to the left instrument panel fuse box, and then out to the brake lights .....
Good Luck
I just took a picture
Last edited by Michele Doyle-blair; 03-25-2021 at 11:41 PM. Reason: I know what I was suppose to o
#7
03-26-2021 | 07:26 AM
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Joined: Jul 2005
Posts: 11,027
From: Slightly off center
Jumpering a switch means to temporarily add an electrical connection that lets electrical current flow directly from the input terminal to the output terminal as if the switch was not there.
Under normal conditions, the switch has to be closed for the current to get from the input to the output. However, if the switch is defective, that will not happen even if the switch seems to be in the closed position. This is a common troubleshooting approach as it allows you to determine if the switch itself is functioning properly.
And your picture is entirely a black box.
Under normal conditions, the switch has to be closed for the current to get from the input to the output. However, if the switch is defective, that will not happen even if the switch seems to be in the closed position. This is a common troubleshooting approach as it allows you to determine if the switch itself is functioning properly.
And your picture is entirely a black box.
