Question about Infiniti FX35

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Hi there can you tell me if the rear led lamps for the infinity fx 35 have a feed back circuit for the brake light and indicator circuits as i work for a import company in the uk and i need to to know weather i can split the brake light and indicator circuit to comply with european sva standards. many thanks

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  • neilbikema Aug 19, 2008

    the year is 2005 3.5l v6 infinity fx 35

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What year?

Posted on Aug 13, 2008

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My brake lights are staying on even when I unplug the brake light switch


The brake light switch is an input to the BCM - body control module , do you know about BCM'S - electronic module ?
Stop Lamps
When the driver presses the brake pedal, the switch contacts open and battery positive voltage is interrupted to the BCM. The BCM then supplies voltage to both the turn/stop lamp supply voltage circuit and trailer rear turn/stop lamp supply voltage circuits. The BCM also supplies voltage to the CHMSL though a dedicated circuit.

could have DTC'S stored in the BCM
DTC B3445 00: Stop Lamp Circuit
Circuit/System Description
The stop lamp switch is used to sense the action of the driver application of the brake pedal. The body control module (BCM) provides a low reference signal and a B+ reference voltage to the stop lamp switch. When the stop lamp switch contacts close indicating the brakes have been applied, the BCM will apply battery voltage to stop lamp relay control circuit and the center high mounted stop lamp (CHMSL). When the stop lamp relay receives battery voltage from the BCM, the relay coil is energized and the stop lamp relay switch contacts close applying battery voltage to the STOP LAMPS fuse to illuminate the left and right stop lamps.

DTC C0277 00: Brake Pedal Position Sensor Calibration Not Learned
DTC C0297 00: Brake Applied Output Circuit
DTC C0890 00: Device Voltage Reference Output 3 Circuit Voltage Out of Range

In the event that DTC C0277, C0297, or C0890 sets as current in the body control module (BCM) is an indication of a possible internal BCM malfunction or programming error. There are no external circuits available to diagnose on this vehicle with respect to these DTCs.
Your best bet would be to take your vehicle to a qualified repair shop or the Cadillac dealer.

Jul 17, 2016 | 2008 Cadillac Escalade

1 Answer

All brake lights and traction light Or on the dash and my brake lights will not work 2006 Cadillac CTS


The traction control system is part of ABS control module an if the light is on there is A DTC - diagnostic trouble code stored in the EBCM - electronic brake control module ! The brake pedal position sensor is an input to the EBCM , when you press the brake pedal the EBCM then energizes the BAS relay in the left rear fuse box turning on the brake lamps !
There could be a DTC like
DTC B3903
The electronic brake control module (EBCM) supplies voltage to the BAS relay coil side voltage supply circuit when the stop lamps are active. The coil side control circuit of the BASS relay is permanently grounded at G402.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B3903 Stop Lamp Relay Circuit
Or
DTC C0278
The brake pedal position sensor (BPP) is a potentiometer. The electronic brake control module (EBCM) supplies a 5-volt reference circuit and low reference circuit to the BPP sensor. The BPP sensor signal circuit is a direct input to the EBCM. The EBCM determines the BPP based on the voltage from the BPP sensor. The EBCM converts the BPP sensor feed back voltage to a digital signal and puts it on the class 2 communication bus.
DTC C0282 Brake Pedal Position Sensor Circuit Range/Performance
DTC C0283 Brake Pedal Position Sensor Circuit Low
DTC C0284 Brake Pedal Position Sensor Circuit High
DTC C0880 Device Voltage Reference Output 2 Circuit
You may want to take this to the dealer !

Jul 14, 2015 | Cadillac Cars & Trucks

1 Answer

Back up lights not working


auto or sticK? tranny?

you need a schematic, and FSM
the circuit is complex (why alludes me) im looking now
see page 108 and 158 here PPD pages.
http://www.jeep4x4center.com/jeep-service-manuals/Jeep_Wrangler_YJ/1993/Wiring_Diagrams.swf#pagemode=bookmarks&toolbar=1

so many connections...
the car with A/T has 2 backup switches.
the PRNDL (jeep is 1-2-D-R)
and a tranny mounted back up switch
both have 12v as inputs. and both can glow the reverse lamps
page 158
see Feed12, that is power.
see it feed both switches and the merge to the lamp feed.
why 2 switches, ive not a clue.
my guess, is its for redundancy.
if the PRNDL fails the real gear switch BU, works and lamps still glow.
so yours is busted 2 time.
Fuse 6 feeds The Feed12,
so use a voltmeter and check the voltages a page 158
a few tests there tells you, is the feed lost before or after the 2 switches.



Mar 06, 2014 | 1994 Jeep Wrangler

1 Answer

Hit bumps and lights will come on and go off or partial come on


dash lights are Park dimmer, adjust the dimmer it might have dead spots in the control try that.
the fuse blow is easy.
1: the brake light feed line is shorted. the fuse saved the fire.

there are only 2 ways (i have 4-5) to fix shorts.
1: look, inspect the the whole brake feed path (stop lights)
collision damage, pack rats eat it (we have em) or uhaul dudes hacked up your wiring for trailer usage/??? hitch /lights from H3LL>

2: did you know the old style stop lamps can short( brass shell)
replace them for $3
3: i use 2 ways to find this , and ohm meter on the circuit
with no lamps in socket, 0 ohms or near shorted, infinity good.
or i use my fancy current limited power supply and back feed
the lamp circuit , fuse pulled.
my power supply shows (set to 5amps) shows 5amps.
its short, with one eye on that dial
i pull all connectors on the brake feed line

bam this connector cut current to zero so the short of to rear.
i pull more, conns. bam, again. the soort is near left rear tail ight
omg, look here wire damage, howd i miss that/?
or trailer hacks right there....
there is another way.
some shops have a fuse Circuit breaker tool $5
it modifies a stock fuse for a CB. at 5amps
so same deal pull connectors to find short.
there is a 5 th way but the tools is very expensive called a TDR
its a short radar, that tells you how many inches away is the short.
(we had them in the military, i loved mine, true love )
it measure the speed of light (near). (joking,) but 1/2true.

I help my wife remover her shorts all the time.. Grin.

Jan 16, 2014 | 2004 Toyota Tacoma

1 Answer

On my z71 1996 model rear bake lights don't work but the third light works, could it be the brake switch ?


No, it is not the brake lamp switch. If the brake lamp switch was not working, the high mount (3rd) brake lamp would also not function.
Chevrolet trucks are notorious for bad tail lamp circuit boards.

Disconnect the electrical connector from the circuit boards. Check for power at the circuit board connector (with the brake pedal depressed) on each side. The brake/turn lamp circuit for the left side is the YELLOW wire. The brake/turn lamp circuit for the right side is the GREEN wire. If there is power at the connector, check the GROUND (BLACK wires) to make sure they are getting a good ground. If the power and ground circuits are OK at the connector, replace the circuit boards.

NOTE: DORMAN makes a kit that includes circuit boards for both sides it is DORMAN Part Number 70001

If there is no power on the YELLOW and GREEN wires at the circuit board connectors, the most likely cause would be a defective turn signal switch.

Apr 28, 2012 | 1996 Chevrolet K1500

1 Answer

The Rear Lamp Failure light comes on, and Ii have no been able to locate where this is located. I do not have an owners manual. I have checked the tail lights, brake lights, even the tag lights, and I am...


Nice SUV, I have the same with 5.2L V8 Limited!!!

Are you sure that there are no lights out?pay attention to the third brake light because it has 3 bulbs and if one is outit will give you that message.also make sure that all of the bulbs are the right ones.

I used to get the "Rear Lamp Failure" message on my '93 Limited after the lights were on for a few minutes... it went away when I changed the rear bulbs to the same brand. The Lamp Outage Module (located in the LR quarter panel, near the fuel filler) is looking for differences in current flow between the left and right side bulbs.

You probably need a new lamp outage module...
CIRCUIT OPERATION
The Lamp Outage Module (LOM) determines if a rear lighting lamp is not operating. When the ignition switch is in the START or RUN position, circuit A1 from fuse 8 in the Power Distribution Center (PDC) connects to circuit A21. Circuit A21 feeds circuit F87 through fuse 5 in the junction block. Circuits F87 feeds the LOM.
- Circuit G46 from the LOM connects to the Vehicle Information Center (VIC) . When the LOM senses a inoperative lamp, the VIC displays the data to the vehicle operator.
- Circuit L90 which feeds the tail lamps and side marker lamps, connects to the LOM. From the LOM, circuit L90 continues to the license plate lamps. Circuits L21 and L22 from the LOM power the tail lamps and side marker lamps.
- Circuit L50 from the stop lamp switch connects to the LOM. From the LOM, circuits L73 and L74 power the stop lamps and circuit L87 powers the Center High Mounted Stop Lamps (CHMSL) . Circuit Z1 grounds the LOM.


If you need tha owners and repair manual about your ZJ Grand Cherokee, just keep in touch and send me one comment.

Hope this helps (remember to rate this answer).

Jan 14, 2011 | 1993 Jeep Grand Cherokee

1 Answer

1999 GMC Envoy: replaced both GE 3057 lamps in left rear light assembly. Lamps both light. However depressing brake pedal does not initiate brake light. The righ rear brake light does work. The high mount...


The high mount brake light has its own fuse, so check that first. The high mount bulb is generally a stabdard type (there may be more than one bulb) or you can replace with an LED. As for the left rear bulbs not working when depressing brake pedal, check the bulbs again for any spring that may be broken. If the bulbs are still good, make sure there is sufficient contact with the socket. If still not working, have someone check it out further.

Feb 15, 2010 | 1999 GMC Jimmy

1 Answer

I have a 1999 pontiac grand am and the reverse lights and brake lights work but i can not get the tail lights to work. I discovered that the reverse light on the bottom of the car is missing the connector...


Pin
Wire Color
Circuit No.
Function
A
BRN
9
Parklamp Feed
B
LT GRN
24
Backup Lamp Feed
C
BLK
750
Ground
Pin
Wire Color
Circuit No.
Function
A
BRN
9
Parklamp Feed
B
LT GRN
24
Backup Lamp Feed
C
BLK
750
Ground
Pin
Wire Color
Circuit No.
Function
A
BRN
9
Parklamp Feed
B
LT GRN
24
Backup Lamp Feed
C
BLK
750
Ground
Find 3 wire connector going to lense in trunk Pin
Wire Color
Circuit No.
Function
A
BRN
9
Parklamp Feed
B
LT GRN
24
Backup Lamp Feed
C
BLK
750
Ground
Pin
Wire Color
Circuit No.
Function
A
BRN
9
Parklamp Feed
B
LT GRN
24
Backup Lamp Feed
C
BLK
750
Ground
brown wire light green wire & black blk is grd moke sure its good, lit grn back up lights,drk Pin
Wire Color
Circuit No.
Function
A
BRN
9
Parklamp Feed
B
LT GRN
24
Backup Lamp Feed
C
BLK
750
Ground
brn tail lights turn parking lights on & with a test light back probe connector no power to brown? ck fuse trace harness to switch wires all good bad switch if you know how to use ohm meter you could use that to ck for shorts on continuity Pin
Wire Color
Circuit No.
Function
A
BRN
9
Parklamp Feed
B
LT GRN
24
Backup Lamp Feed
C
BLK
750
Ground

Aug 30, 2009 | 1999 Pontiac Grand Am GT

1 Answer

Rear window break light


You either have a 'single filament' bulb installed in a 'dual filament' brake lamp socket ... OR .. you have a 'dual filament' bulb short circuited internally. Check your rear brake lamp bulbs (supposed to be 'dual filament' - two contacts on their bottoms). When you step on the brake pedal, do your dash lights LIGHT UP? A 'cross circuit' exists between brake lamp circuit and parking lamps circuit.

Apr 15, 2009 | 2001 Hyundai Elantra

1 Answer

Gauge lights and tail lights do not come on unless brake pedal is pressed


Hi ...... the brake pedal circuit is 'live' even when the ignition is switched off. Its sounds like you have a 'short' between the brake circuits and the rest, my guess would be at the back of the car. Have you had any work done lately ? Or heavy object in the boot/trunk ? Check ither side of the boot/trunk (behind or near rear lights) for chaffed, broken or melted wires. Make up a simple bulb testing lamp, one 12v bulb with a wire on positive and one on negative and place these wires into/on the wires going to your rear lights (neg' to earth) ......... this will tell you if the circuit has power going to it and by going back along the route you'll pinpoint the damaged or problem area. First step is to make sure both rear light clusters have good earthing points.
Let us know how you get on.

Dec 22, 2008 | 2003 Mitsubishi Montero Sport

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