Question about 2005 Ford Mustang

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Head lamps turn on

My head lghts turn on when i take my e brake off and the light switch is in off position

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I would say they are day time running lights when you apply the e brake they shut off thats normal

Posted on Jan 15, 2009

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Posted on Jan 02, 2017

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04 Nissan maxima tail lghts don't always come on right away thought maybe headlight switch not sure need help


Download 2004 Nissan Maxima Lighting System Section LT PDF Manual 190 Pages Do you know how to do electrical testing with volt ohm meter ? Do you know what a BCM is ? COMPUTER !
Control of the parking, license plate, and tail lamp operation is dependent upon the position of the lighting switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM (body control module) receives input signal requesting the parking, license plate, side marker and tail lamps to illuminate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. This relay, when energized, directs power to the parking, license plate, rear side marker and tail lamps, which then illuminate.
Testing starts at 134

Feb 05, 2017 | 2004 Nissan Maxima

1 Answer

How to turn bright lights off on 2003 cts


Could be a bad dimmer switch or a stuck high beam relay or the ( DIM ) dash integrated module .
Headlamp Low or High Beams Always On

2

  1. Turn the headlamp switch to the OFF position.
  2. Verify that the transmission shift lever is in the PARK position for vehicles equipped with automatic transmissions or the parking brake is applied for vehicles with manual transmissions.
  3. Expose the sunload sensor to a bright light.
  4. Turn the windshield wipers to the OFF position.
  5. Turn ON the ignition, with the engine OFF.
Are the head lamps ON? YES or NO

3

  1. Turn OFF the ignition.
  2. Install a scan tool.
  3. Turn ON the ignition, with the engine OFF.
  4. Turn the headlamp switch to the OFF position.
  5. With a scan tool, observe the Head Lamp Switch parameter in the Dash Integration Module (DIM) Inputs data list.
Does the scan tool indicate that the Head Lamp Switch parameter is OFF?
I would think you probably don't have a GM Tech 2 factory scan tool , this is a very involved diagnostic flow chart an you can't diagnose it very easily without the factory scan tool . You could replace parts an get lucky . I would start with the high beam relay in the under hood fuse / relay center . Do you know what a relay is , not to talk down to you because I don't what you know . The relay is energized by the DIM - dash integrated module . You may want to take this to a ASE certified repair shop or the dealer !
I would



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Jul 31, 2015 | 2003 Cadillac CTS

1 Answer

Where is the stop lamp or brake lamp fuse and panel for a 2007 cadillac cts?


Kevin , this is a very complex way of stoplamp control , I will post GM service Description and Operation of how they work an let you deside if you want to tackle this ! Do the center high mount brake lights work ?
The brake pedal position sensor is a resistive device used to sense the action of the driver's application of the brake pedal. The brake pedal position sensor provides an analog signal that will increase as the brake pedal is pressed.
The brake pedal position sensor receives both a 5-volt reference voltage and a low reference signal from the electronic brake control module (EBCM). When the brake pedal is pressed, a variable signal is applied from the brake pedal position sensor to the EBCM through the brake sensor signal circuit. The fuse block left rear supplies battery positive voltage to the bass relay switch through the BASS fuse. One side of the bass relay coil is permanently grounded at G402. The EBCM supplies voltage to the bass relay coil upon receiving the signal from the brake pedal position sensor. The switch contacts of the bas relay close and battery positive voltage is applied through the bas relay switch to the center high mounted stop lamp (CHMSL), and to the turn signal/hazard flasher module through the stop lamp switch signal circuit. The ground for the CHMSL is applied from G402. The turn signal/hazard flasher module then supplies voltage to the left and right stop lamps in the tail lamp assemblies that have ground at G401 and G402. For export vehicles the stop lamps receive battery positive voltage directly from the bass relay.

There could be a code stored in the EBCM - electronic brake control module - DTC B3903 Stop Lamp Relay Circuit
DTC C0278 Brake Pedal Position Sensor Not Calibrated
there are several other codes that pertane to the brake lights . you could try Replaceing the bas relay !
Fuse Block - Left Rear
In the passenger compartment, under the left side of the rear seat at carpet.

Jun 28, 2015 | 2007 Cadillac CTS 3.6L

3 Answers

Why the brake light works and tail light don't work Chevrolet avalanche 2003


they are dual filament bulbs so the tail light filament might have blown and not the stop light , replace the bulb to check

Jul 18, 2014 | 2003 Chevrolet Avalanche

1 Answer

2001 Monte Carlo SS 3.8 v6 Rear park lights are out as well as the dash lights, brake lights work headlights work front running and park lights work, all turn signal lights work. replaced headlight switch...


Park, Tail, Marker Lamps, and License
The park, tail and marker lamps, including the license lamps, turn on when the headlamp switch is placed in either the PARK or the HEAD position, or anytime the headlamps are requested. The RT I/P #1 fuse in the RH I/P fuse block supplies battery positive voltage to both the park lamp relay switch contacts and to the park lamp relay coil circuit. The park lamp relay coil is controlled by the body control module (BCM). When the headlamp switch is placed in the PARK position, the BCM energizes the park lamp relay coil control circuit.
Current flows from the park lamp relay switch to both front and rear park lamp fuses and to their respective park/tail lamps. The front park lamps are grounded at G101. The rear park lamps are grounded at G302. The license plate lamps are a part of the rear park lamp circuit and are grounded at G302. The inadvertent power control feature prevents the park lamps from remaining on more than 10 minutes if left on. If the park lamps are turned on after the ignition switch has been turned OFF, or is in the ACCY position, they will remain on until turned off or until the battery runs dead.

Did you the REAR PARK LP fuse 15 amp in the right insturment panel fuse box.

Jul 18, 2017 | 2001 Chevrolet Monte Carlo

1 Answer

I have a 99 Pontiac Sunfire, 2.2L and my turn signals quit working. I replaced the combination switch and the flasher/hazard relay, and still no joy. The problem was intermittent, and now it's just dead....


It will turn on when I hit the button and the turn signals do work. All of this has led to my ABS lights to come on as well. ??????????? Your best bet , take it to a qualified repair shop or learn to do better explanation's ! Or lean to do automotive electrical testing .
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
Electric Testing Techniques You Need to Know

How to Use Multimeter to Troubleshoot Common Problems

Do you know what a wiring diagram is ? How to use a DVOM - digital volt ohm meter ? Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year make ,model and engine size. Under system click on lighting ,then under subsystem click on turn signals . Click the search button then the blue links .Check power an ground circuits ! This is how we diagnose electrical faults , not just replacing parts .

Turn Lamps
Voltage is applied through the TURN fuse and the turn/hazard flasher when the ignition switch is in the following positions:
• RUN
• BULB TEST
• START
The voltage travels to the contact in the hazard switch. The hazard switch is located in the turn/hazard-headlamp switch assembly. This contact is normally closed.
When the left turn signal is turned on, voltage is applied to the following components.
• The left turn indicator
• The left front park/turn lamp circuit 14
• The left rear turn lamp circuit 18
The turn lamps turn on immediately. The current flow heats up the timing element. The timing element is located in the turn/hazard flasher. The timing element repeatedly opens and closes the circuit. This action causes the turn lamps to begin flashing.
The voltage that is applied to the left front park/turn lamp is also applied to the left front marker lamp. If the headlamp switch is in the OFF position, the left front marker lamp will find a path to ground through one of the following lamps. The following lamps provide low resistance paths to ground:
• The right front marker lamp
• The right turn indicator
• The right front park/turn lamps
• The left front park/turn lamps
The left front marker lamp flashes with the turn lamps. The voltage drop across the marker lamp is much higher than the voltage drop across the other lamps. The lamps that are used for the ground path will not flash.
When the headlamp switch is in either the PARK or HEAD positions, voltage is applied through the following components:
• The EXT LP fuse
• The marker lamps
• The park lamps
When the left turn signal is turned on, the left marker lamp will have voltage at both connections. The left marker lamp does not light. When the turn/hazard flasher stops the voltage to the turn lamps, the marker lamp is grounded through the turn lamp. The marker lamp does not go on. The left front marker lamp flashes in the following manner:
• The left front marker lamp flashes on when the turn filament of the left front park/turn lamp goes off.
• The left front marker lamp flashes off when the turn filament of the left front park/turn lamp goes on.
Voltage is applied to the right lamps in the same manner, when the right turn signal is turned on.
Hazard Lamps
Voltage is applied at all times through the following components to the normally open contact of the hazard switch in the turn/hazard-headlamp switch assembly:
• The STOP HAZ fuse
• The turn/hazard flasher
When the hazard switch is turned on, voltage is applied to the following components:
• The front turn lamps
• The rear turn lamps
The following lamps flash on and off:
• All of the turn lamps
• Both of the turn indicators
The front marker lamps flash with the hazard lamps on, just as the front marker lamps flash when the turn lamps are on. If the headlamp switch is in the OFF position, the front marker lamps flash on when the hazard lamps are on. The front marker lights will flash on when the hazard lamps are on if the headlamp switch is in one of the following positions:
• PARK
• HEAD
When the hazard lamps are on, the following conditions apply:
• The turn circuit is always open.
• The turn/hazard flasher controls the lamp.
Park/Marker Lamps
Voltage is applied through the EXT LP fuse, to the headlamp switch at all times. Voltage is applied to the park lamps and the marker lamps when the headlamp switch is in the following positions:
• PARK
• HEAD
The front marker lamps are grounded through the turn filament of the respective front park/turn lamp. The front marker lamps light as a result.
Stop Lamps
Voltage is applied through the STOP HAZ fuse to the brake switch at all times. When the brake pedal is depressed, the brake switch closes. This action applies voltage through the turn/hazard-headlamp switch assembly to the following lamps:
• The high mounted stop lamp assembly
• The left tail/stop-turn lamps
• The right tail/stop-turn lamps


Jun 30, 2017 | 1999 Pontiac Sunfire

3 Answers

Jaguar x type brake lights stay on


the brake light switch has either moved out of the bracket just above the brake light pedal or the brake light switch itself is faulty.
look just above the brake pedal, there should be a switch on a bracket so that when you press the brake pedal the spring plunger piece of the switch moves out and the lights come on. make sure the plunger goes in when the brake pedal goes back to normal position.if the lights stay on when the plunger is pushed in the switch is faulty and needs changing, quite common. hope this helps

Apr 07, 2009 | 2003 Jaguar X-Type

2 Answers

When the headlight switch is turned on the lighs dont come on


you could have a blown head lamp fuse , bad earth at the head lamps or the switch could be u/s what sort of car is it

Mar 06, 2009 | 1992 Chevrolet K1500

2 Answers

99 chevy auto lamp problem


WHAT YOU MIGHT CHECK IS THE FUSE FOR TAILLIGHTS, OR DASH LIGHTS. THEY WORK OFF THE SAME FUSE. IF THE FUSE IS BLOWN THE HEADLIGHTS WORK BUT NO TAIL OR DASH LIGHTS

Feb 16, 2009 | 1999 Chevrolet Silverado 1500

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