Question about 2002 Jeep Grand Cherokee

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Rear right signal is not working. Lightbulb is good. Which fuse controls this part?

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Did you replace the bulb. Just because it looks good doesn't mean it works. If the fuse was bad both sides would not work

Posted on May 30, 2010

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Posted on Jan 02, 2017

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I have 2008 chevy express, the turn signals flash fast, but not able to find a flasher unit. I have checked grounds, bulbs and fuses, all are good


The BCM - body control module controls turn signals . There is no flasher unit . Your best bet would be to take your vehicle to the dealer !
Turn Signal Lamps
The BCM 3, BCM 5, and BCM 6 fuses located in the underhood fuse block supply battery voltage to the body control module (BCM) for turn signal, hazard lamp, and stop lamp operation. Voltage from the BCM 5 fuse used for the front and rear left turn signals, voltage from the BCM 3 for the right front turn signal, while voltage from the BCM 6 fuse is used for the right rear turn signal. When the turn signal switch is place in either the LEFT or RIGHT position, ground from G303 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.

Ignition ON, observe the scan tool Left Turn Signal Switch parameter while using the turn signal/multifunction switch to turn the left turn signal ON and OFF. The reading should change between Active and Inactive.

Apr 08, 2017 | 2008 Chevrolet Express

1 Answer

07 cadillac cts has no brake light all fuses are good and replace the brake switch.still not working any advice


Stop Lamps
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 bass relay close and battery positive voltage is applied through the bass 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.

Do you know where the rear fuse box is ? Check BAS fuse 15amp. and the bas relay , should be marked on the inside of the fuse box lid . The rear fuse box is located

Fuse Block - Left Rear
In the passenger compartment, under the left side of the rear seat at carpet
Power and Grounding Component Views
Electrical Center Identification Views
Fuse Block - Right Rear
In the passenger compartment, under the right side of the rear seat at carpet.

If fuse and relay are ok your best would be to take to a cadillac dealer .

Jan 19, 2017 | Cadillac Cars & Trucks

3 Answers

Turn signals not working


all else on car works perfectly (other shoe drops??????)
waring 1: no scan tool, you will fail (99%)
is battery fully charged to 12.6vdc rested or at 10v?
all 4 corners dead?
not working means dead?, flashes too fast/slow or dim? or they stick on? (5 modes to fail not counting L/R and haz)
do the hazards work? (prime evidence and not stated)
most cars before 2007 have fuse marked TURN.
but not this car... its not at all like older cars....
did you scan it first after the fuse tests? any PCM scan tool.?
2009 WK jeep
the FSM chapter 8L shows the huge list of errors the lamps can fail. DTC errors.
in fact 8 blinker codes, ! DTC errors,

there is no fuse, just for turns, (trailer lamps fuse 19)

read this excerpt from the FSM book.

The turn signal system operates on battery current received on a fused ignition switch output (run) circuit so that the
turn signals will only operate with the ignition switch in the On position. The hazard warning system operates on
non-switched battery current received on a fused B(+) circuit so that the hazard warning remains operational regardless
of the ignition switch position. When the turn signal system is activated, the circuitry of the left multi-function
switch and the FCM will cause the selected (right or left) turn signal indicator, front park/turn signal lamp, front side
marker lamp and rear tail/stop/turn signal lamp to flash on and off. When the hazard warning system is activated,
the circuitry of the hazard warning switch and the FCM will cause both the right side and the left side turn signal
indicators, front park/turn signal lamps, front side marker lamps and rear tail/stop/turn signal lamps to flash on and
off. The Front Control Module (FCM) can also activate the hazard warning system lamps.
end quote)

the module front control MFC, runs this
and it uses fuse 18 , if 18 blows the module goes off line and vast things fail and huge numbers OF DTCs store.
and fuse 27 MFC
MFC needs these fuses good.
keep in mind nobody has MFC internal schematics...so........



this module drives left and right side front and rear.
electronic drivers, not fuses.
the MFC is here.
the fuses are 12,13,18, 20,27 that power MFC.


25812039-lb3yimx2pwhstnjl4tgwffiq-2-0.jpg ground this end.

Aug 07, 2015 | 2009 Jeep Grand Cherokee

2 Answers

Rear turn signal probem


Have you done any mods lately? Are you using the correct replacement bulbs? Make sure the wiring is not crossed.

Feb 02, 2015 | Cars & Trucks

1 Answer

2010 chevy equinox right rear turn signal doesnt work, replaced bulb and still the same. front works, is there a fuse for the rear light and where is the fuse located.


RT/SIG fuse #11 15amp - I/P fuse box . Fuse Block - I/P
In the center of the instrument panel, beneath the right side of the radio, in back of the right side console access panel.
This fuse is power to the BCM , When you put on the right turn signal , this is a voltage signal to the BCM . With logic ( programming ) the BCM then controls the turn signal !
Turn Signal/Hazard Lamps
The body control module (BCM) is responsible for controlling the turn signals and hazard lamps. When the turn signal switch is placed in either the left turn or right turn position, the BCM receives a signal from the turn signal switch. The BCM then sends an on-off voltage signal to either the left or right turn signals and their instrument panel cluster (IPC) indicator. When the hazard switch is pressed, the BCM receives a signal from the hazard switch. The BCM then will send an on-off voltage signal to all the turn signal lamps. All the turn signal lamps will flash including both IPC turn signal indicators.
There could be a DTC- diagnostic trouble code stored in the BCM pointing to the problem ! I suggest you take your vehicle to the dealer or a ASE certified repair shop that has the diagnostic tools to find the problem . Just so you don't waste your money replacing parts that don't fix it.
There could

Dec 14, 2012 | 2005 Chevrolet Equinox

1 Answer

My rear right turn signal does not work. The indicator light on the dash for the right turn signal flashes quicker then usual. Looking at the fuse panel, I don't know which fuse works the rear right turn...


Usually when the signal is blinking fast it just means the bulb is broken, disconnected, or the wire may have a short or break in it. take care and good luck. Especially if the front one is working.

Mar 06, 2011 | 2010 Chevrolet Cobalt

2 Answers

Rear taillights and turn signal lights not working


I asked that becauses of the wiring for the tow setup. If the previous owner had uhaul or one of the other tow companies out there install the wires for the tow package they use a crappy little product that they clamp to the wire and push a pin that cuts the casing and connects the circuit. It also seriously weakens the cables, and lets water in to the wire. Since you have a tow package I'd focus on those wires back there sounds like you may have a short. Those pins do have some wire exposure when installed right and I've seen them bundled and taped on the early 2000's explorers without being individually taped first, which leads to shorts and non working turn signals and brake lights.

Jun 02, 2009 | 2002 Ford Explorer Sport

3 Answers

Brake lights don't work. Fuse is good, bulb is good, but brakes still won't come on. GMC Sonoma 1994.


please check your brake light switch located near the brake pedal. it could be faulty.

tnx 4 using fixya,

drcool

Sep 24, 2008 | 1999 GMC Yukon

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