Question about 2002 Harley Davidson FLSTF - FLSTFI Fat Boy

1 Answer

Rea stop lt doesnt work with foot control brake lts and turn signals work as always with Front brake lever Is there another brake Lt. switch beyond first one from mastercylinder of rear brake lt. Brake Lt works with front Brake and first switch from rear master cylinder shows good cant imagine bad wire or connect??

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  • Harley Davidson Master
  • 42,898 Answers

Hi Anonymous, this problem is usually cause by the front brake light switch being out of alignment or the button not retracting all the way keeping your brake light on in a closed circuit, depending on your model year. 1996 and earlier models the right handlebar switch housing had to be tight up against the front brake control housing in order for the front brake light switch button to be fully compressed to stop continuity. In 1997 and later models the button was alot shorter and was more of an alignment issue in the switch housing. Rear brake light switches located in the rear brake line TEE can also fail in the closed circuit condition but extremely rare, usually they fail in an open circuit condition where the brake light is not able to activate. For a free wiring diagram please visit the website below and good luck. Harley Davidson Wiring Diagrams and Schematics

Posted on May 27, 2015

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6ya6ya
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Posted on Jan 02, 2017

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rtpflh
  • 546 Answers

SOURCE: when I use the front brake the brake light

remove switch cover on front brake master cylinder.support assembly. check connections at brake cyl.switch,check wires were not 'pinched' by cover against handle bar

Posted on Sep 28, 2009

  • 8404 Answers

SOURCE: My rear tail light does not work when the front

You should have two filaments in the reat taillight lamp, one for tail light and one for brake light. You are not confusing these filaments/functions are you?

What you seem to be saying to me is that you have a lamp that had no tail light filament (burned out) but does have a brake light filament still intact.

Remove the light and check it visually and/or with a contunity tester.

I hope this helps you ...

If I misunderstood your question, please ask me again

a

Posted on Oct 02, 2009

wd4ity
  • 4565 Answers

SOURCE: harley 1998 ultra wiring schematic

Sorry but I don't have a wiring diagram that I can send you but I may can offer a bit of help.

Your passing lamps are simply wired into a hot circuit somewhere. A lot of schematics don't show them because they are considered "add ons". They also may have a fuse inline with the "hot" wire. They have only one wire that connects them to the bike with the rest being inside the "light bar" itself. Find the wire coming out of the center of the "light bar" and trace it back to where it hooks up. Sorry but that's the best I can do on this one.

On your front brake light, there is a switch located inside your right hand switch housing where your throttle is located. It is a plunger type switch that is activated when you pull the front brake lever. A simple test of the switch is to loosen the bolts of the master cylinder and slide it towards the center of the handlebars. If the switch is good, the brake light will come on. If the switch is bad, it will not.

To get to the switch, you'll have to take the right hand switch housing apart. First, loosen the throttle cables at the adjusters and then remove the two bolts that hold the switch housing halves together. Carefully open up the switch housing. You will see the small switch in the front of the housing. You'll have to desolder the wires, replace the switch with a new one, and resolder the wires to the new switch.

Reassembly is the reverse of the disassembly. Make sure you slide the master cylinder all the way back against the switch housing or the brake light will stay on constantly. Readjust the throttle cables and check for proper operation. You don't want your throttle sticking.

Good Luck
Steve

Posted on Jun 15, 2010

wd4ity
  • 4565 Answers

SOURCE: Right foot pedal doesn't light tail light when

More than likely, the problem is the rear brake pressure switch. Find the rear brake master cylinder and follow the metal line that comes out of the back of it until you come to a switch with two sets of wires connected to it. This is the pressure switch. To replace it, simply screw the old one out and screw the new one in. Do not press the foot pedal with the old switch removed. You should not even have to bleed the brake if you do it right. Have the new switch ready to screw in before you take the old one out. One out the other one right back in.

Good luck
Steve

Posted on Nov 12, 2010

  • 8909 Answers

SOURCE: right hand indicator turns on when front &

Check the earthing on the rear lamp cluster, especialy the break lamp earth.

Posted on Feb 13, 2011

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1 Answer

08 Buick lucerne cxl. Third brake light works as well as front signal lights. No rear brake lights or turn signals. Tail lights and headlights and third brake lights works. Bulbs good. Help


Stop Lamps
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 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 is applied, the BCM will then apply battery voltage to the left and right stop/turn signal 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 applies battery voltage through the signal circuit to the transmission control module (TCM) and the engine control module (ECM) indicating that the brakes are applied.
Ground for the stop lamps is supplied as follows:
• G402 provides ground for the left rear stop/tail/turn signal lamps
• G403 provides ground for the right rear stop/tail/turn signal lamps
• G301 provides ground for the CHMSL
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.
Battery voltage from the LT TRN/SIG and RT TRN/SIG fuses located in the rear fuse block is also used by the body control module (BCM) for stop lamp operation.

Turn Signal Lamps
Battery voltage supplied to the body control module (BCM) from the fuses listed below is used for turn signal and hazard lamp operation.
• LT TRN/SIG fuse for the left turn signals
• CTSY/RF TRN fuse for the right front turn signal
• RR TRN/SIG fuse for the right rear turn signal
When the turn signal switch is place in either the LEFT or RIGHT position, ground from G300 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. At the same time the BCM sends a GMLAN serial data message to the instrument panel cluster (IPC) to cycle the appropriate turn signal indicator ON and OFF.
Ground for the turn signal lamps is supplied as follows:
• G104 provides ground for the left and right front turn signal lamps
• G402 provides ground for the left rear stop/tail/turn signal lamps
• G403 provides ground for the right rear stop/tail/turn signal lamps

Do you have a factory scan tool (tech2) ? Your best bet , take it to the dealer .

Sep 08, 2017 | Buick Cars & Trucks

1 Answer

I had replaced headlight switch but i still need to take fuse off to turn off dashlights and parking lights.


What we Know -
1: Regardless of whether the Hd. Lt. Sw. is On or Off, the Pk. Lts. stay on.
2: The only way to turn them Off is pull the fuse.

Therefore, for some reason, the Pk. Lt. fuse is alive all the time instead of only when the Hd. Lt. Sw. is on.

The most likely cause is at the fuse block. The wires going to the Pk. and Dash Lts. has been connected to the wrong fuse.
Using a meter or test light, locate the fuse that is only alive with the Pk. Lt. Sw. on. This is where the Pk. Lt. wires have to go.

Apr 14, 2014 | 2003 Acura 3.2TL

3 Answers

Only Rt turn signal works no matter if switch is in Lt or Rt position


The multi-function switch could be defective. The L/R position signals go to the instrument cluster then they are bussed on computer data lines to the front control module to develop the outputs that light the turn lamps. The defect could be in the instrument cluster, the front control module, or even the PCM

Nov 05, 2012 | 2008 Mitsubishi Raider

1 Answer

2009 Impala rear lights not working


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

Jul 19, 2017 | Cars & Trucks

1 Answer

Where is the Hazard/Turn Signal Module Located


Hi. Turn the blinker on and feel your way down to the flasher unit. You will be able to feel it when it is clicking. Replace that unit and that should fix it. Good luck.

Dec 08, 2011 | Cars & Trucks

2 Answers

My brake lights are not working at all. The fuses are not blown


Hi!!
Check the Brake Pedal Position Switch on top of the brake pedal, the Lt Green w/Red stripe wire should always have 12v+, when brake pedal is depressed the Lt Green wire should have 12v+ also, if no power on Lt. Green w/Red wire, check fuse # 2 20A, if no power on Lt. Green wire when pedal depressed, REPLACE Switch, If there is power on both wires when pedal is depressed, check IVD STOP LAMP RELAY on the Aux. Relay Box 1 located at the Left Front of the Engine Compartment.
Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

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1 Answer

Radio fuse


# 18 for radio and it is a 20amp...see below for all #'s got to and amps... 1-20amp-pwr outlet frt. 2-10amp-rear fog lights(export only)
3-15 amp-horn 4-10amp-hedlt low beam rt
5-10amp-hedlt low beam lft 6-20amp-bodycontrolmodule/pwr dr locks 7-spare 8-spare 9-10amp- rt pk lt /rt tail lt/trailer tow lt/cluster
10-spare 11-15 amp-flasher 12-15 amp-stop lts
13-10amp-bodycontrolmodule/cmtc/cluster 14-spare
15-10amp-pdc fuel pmp & auto shutdownrelays/skis
16-20amp-pwr outlet rear 17-15amp-rear wiper 18-20amp-radio choke relay 19-20amp-frt fog lts/trailer tow stop and turn lts
20-20amp-sunroof 21-spare 22-10amp-wiperswitch/frt and rear washer 23-10amp-lft park lt/lft tail lt 24-10amp-pdc blower motor relay 25-10amp-heatseatswitch/hvac controlhead/trailor tow battery charge 26-10amp-hedlt highbeam rt 27-10amp-hedlt highbeam lft
28-spare 29-15amp-heated seat module 30-10amp-heated mirrors/rearwindowdefrosterindicator 31-20amp-cigarlighter
32-10amp-radio/frtdoorlockswitches/bodycontrolmodule
33-10amp-skis/diagnostic connector 34-15amp-cluster/courtesy lts/radio/bodycontrolmodule/maplights/cmtc/underhood lt/vanity lts
35-spare 36-10amp-ignition run/start-orc/lft and rt siacm
37-10amp-ignition run only-orc 38-10amp-abs module/brake shift interlock solenoid 39-10amp-rear window defroster relay/flasher/backup lts

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5 Answers

2002 jeep liberty interior fuse diagram


1-20amp-pwr outlet frt. 2-10amp-rear fog lights(export only)
3-15 amp-horn 4-10amp-hedlt low beam rt
5-10amp-hedlt low beam lft 6-20amp-bodycontrolmodule/pwr dr locks 7-spare 8-spare 9-10amp- rt pk lt /rt tail lt/trailer tow lt/cluster
10-spare 11-15 amp-flasher 12-15 amp-stop lts
13-10amp-bodycontrolmodule/cmtc/cluster 14-spare
15-10amp-pdc fuel pmp & auto shutdownrelays/skis
16-20amp-pwr outlet rear 17-15amp-rear wiper 18-20amp-radio choke relay 19-20amp-frt fog lts/trailer tow stop and turn lts
20-20amp-sunroof 21-spare 22-10amp-wiperswitch/frt and rear washer 23-10amp-lft park lt/lft tail lt 24-10amp-pdc blower motor relay 25-10amp-heatseatswitch/hvac controlhead/trailor tow battery charge 26-10amp-hedlt highbeam rt 27-10amp-hedlt highbeam lft
28-spare 29-15amp-heated seat module 30-10amp-heated mirrors/rearwindowdefrosterindicator 31-20amp-cigarlighter
32-10amp-radio/frtdoorlockswitches/bodycontrolmodule
33-10amp-skis/diagnostic connector 34-15amp-cluster/courtesy lts/radio/bodycontrolmodule/maplights/cmtc/underhood lt/vanity lts
35-spare 36-10amp-ignition run/start-orc/lft and rt siacm
37-10amp-ignition run only-orc 38-10amp-abs module/brake shift interlock solenoid 39-10amp-rear window defroster relay/flasher/backup lts

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2 Answers

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1 Answer

!996 1100 LT Brake lights always on!


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