When I depress the brake pedal the instrument illumination lamps light. Makes no difference if the ignition switch is on or off.
Also, if I have the right turn signal selected, the right turn signal works properly until I turn the parking or headlamps on. The turn signal lamps front and rear do not flash but just stay illuminated as long as the park or headlamps are energized. If you turn off the headlights and parking lights the right turn signal begins to work properly.
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Re: When I depress the brake pedal the instrument
Sorry but i have actually worked on one of these 30 yrs ago a straight 6 and it was the foremans son in law and we had problems similar to this and in the end we stripped the loom and rebuilt it ,wasnt difficult except iam colour blind so i tagged all the cables .Now please remember that the english one many moons ago had a different wiring system with proper indicators as it had to conform to uk law and the flasher and stop lights had to be separate .Now before you start playing with it and getting yourself confused i would be inclined to remove the rear light units and check for corrosion because i think it might have a corroded earth connection either in the light units or on the earth grounding point being corroded so the lights are earthing out down another circuit rather than to ground hence the stop lights putting the side lights on and the flashers which interupt the stop light so take the light units off and start looking ,also make sure the connections have a bit of vasaline on them .Best off british with it i dont think this is a complicated issue at all and i only wish you was local as i would do it for free just to say i have worked on one when i go for coffee with all the other mechanics and we tell tall stories
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Are you sure the brake pedal switch is properly adjusted? You should be able to reach under the pedal with your finger and activate the brake lamp switch. There are two relays in the rear of the car by the brake lights which activate (you can hear them click) when the pedal/switch is depressed. Make sure you also have the correct lamps specified in the owners manual. Usually if the bulbs are no good you will get an indication on the instrument cluster.
You either have a bad brake light switch or a bad fuse that powers your brake lights. Go to your fuse panel and check the fuse first. If it checks good then check the brake light switch. The switch will be located on the brake pedal at the top. There should be two wires into the switch. One will have power at all times. as you depress the brake pedal it makes the connection in the switch to the other wire which then sends power to the brake lights and illuminates the bulbs. Use an electrical tester to make sure you have power in and power out when the brake pedal is depressed.
Turn Signal Lamps
The LT T/SIG and RT T/SIG fuses located in the underhood fuse block supplies battery positive voltage to the body control module (BCM) for turn signal and hazard lamp operation. When the turn signal switch is place in either the LEFT or RIGHT position, ground from G202 is applied through the turn signal switch signal circuit to the BCM indicating the turn signal request. In response to this signal, the BCM applies a pulsating voltage to the front and rear turn signal lamps supply voltage circuits cycling the lamps ON and OFF. The BCM also sends a message via GMLAN to the instrument panel cluster (IPC) to cycle the turn signal indicator ON and OFF depending on the position of the turn signal switch.
Ground for the turn signal lamps is supplied as follows:
• G101 provides ground for the left front turn signal lamp
• G100 provides ground for the right front turn signal lamp
• G302 provides ground for the left and right rear turn signal lamps
The LT T/SIG and RT T/SIG fuses located in the underhood fuse block are also used by the body control module (BCM) for stop lamp operation.
The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The body control module (BCM) provides both, a 5-volt reference voltage and low reference to the brake pedal position sensor. The position sensor provides an analog voltage signal back to the BCM that will increase as the brake pedal is applied. When the brake pedal is applied, the BCM will then apply battery voltage to the left and right stop lamp supply voltage circuits and the center high mounted stop lamp (CHMSL) supply voltage circuit illuminating the stop lamps. At the same time the BCM signals the transmission control module (TCM) and the engine control module (ECM) that the brakes are applied. Ground for all stop lamps is provided at G302.
The stop lamps on this vehicle will not illuminate unless the ignition is in the accessory, run, or crank positions. When the ignition is in the OFF position the stop lamps will not illuminate when the brake pedal is applied.
Did you check the fuse's. ? Wouldn't think it's a ground because right an left tail lamp Assembly's use same ground ! Did you check for B+ voltage at the bulb. with a volt meter ? Power is supplied by the BCM . Could be the tail lamp assembly
The brake light recall you got in the mail should fix the ESC light.
HYUNDAI IS RECALLING 532,633 MY 2006-2007 ACCENT, ENTOURAGE, SONATA, MY 2007 AZERA, ELANTRA AND SANTA FE, MY 2005-2007 TUCSON AND MY 2007-2008 VERACRUZ VEHICLES. THE STOP LAMP SWITCH IN THE AFFECTED VEHICLES MAY MALFUNCTION. A MALFUNCTIONING STOP LAMP SWITCH MAY CAUSE THE BRAKE LIGHTS TO NOT ILLUMINATE WHEN THE BRAKE PEDAL IS DEPRESSED OR MAY CAUSE THE BRAKE LIGHTS TO REMAIN ILLUMINATED WHEN THE BRAKE PEDAL IS RELEASED. A STOP LAMP SWITCH MALFUNCTION MAY ALSO AFFECT THE OPERATION OF THE BRAKE-TRANSMISSION SHIFT INTERLOCK FEATURE SO THE TRANSMISSION SHIFTER WOULD NOT BE ABLE TO BE SHIFTED OUT OF THE PARK POSITION. IT MAY ALSO CAUSE THE ELECTRONIC STABILITY CONTROL (ESC) MALFUNCTION LIGHT TO ILLUMINATE, AND IT MAY NOT DEACTIVATE THE CRUISE CONTROL WHEN THE BRAKE PEDAL IS DEPRESSED.
The stop lamp switch is used to judge if the acceleration system is abnormal. The stop lamp switch contains two switches monitored by the PCM. This is all covered at the dealer.
The stop lamp switch contains two switches monitored by the PCM. This will cause the issue you are having. It will illuminate the engine light also and cause the transmission to go into limp mode which is what's happening. Have replaced many for this same exact issue. This is what needs to be done next. The engine and ESC light come on together.
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Do you mean the dash computer is saying Brake lights have failed? or the dash instruments are not lit and thus indicating no faults in the system?
If you have proven the fuse and the bulbs, the next step is to prove the brake light switch. You will find this mounted on top of the brake pedal so is quite awkward to get to, You will probably need a torch aswell. Once you've located the switch, there will be a pair of wires attached to the switch either by a plug or and hopefully 2 seperate spade connections. Either way, you need to remove the connections from the switch and using a piece of wire or conductor, create a path between the 2 wires. this should illuminate the lamps (ensure ignition is switched on to test). If the lamps work from this test, you first need to check on the switch that when the pedal is depressed that the switch is springing out. if it does then a new switch will be required. If the switch does not spring out while the pedal is depressed, then it may just need freeing off or the switch adjusting.
Hope this works. Have patience while doing this because of the restricted space you are trying to work in. Good luck :-)
Look up at the top of the brake pedal under dash and you should see a switch hooked to the pedal with a LG/R and LG wire. You should have power on the LG/R wire then when you depress pedal it should have power on the LG then.
Another question does the 3rd or high mount brake lamp illuminate when pedal is depressed?