Question about NPN 2005 - 2008 Chevrolet Uplander Brake Pads W0133-1774856 Rear Chev

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Bcm could it be problem with signal lights

All lights and fuses are work tested on another van

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Looking for a wiring diagram of turn signal lights and stop lights for a 2008 Saturn Aura XE


https://s8.postimg.org/ew3ed6k85/saturn_aura_stop_lamps.jpg

You may have a bcm problem? The bcm controls both the brakes and turn signals. Any applicable trouble codes? Click on the link, part of wiring for brake lamps, you can check the fuse and relay. Also, check the fuse circuit for voltage, use a test light.

Mar 02, 2017 | 2008 Saturn Aura

1 Answer

2006 Chevy express 2500 instrument panel lights stopped working after two wires touched going to tow switch. No blown fuses


Which I/P lights ? Instrument cluster , radio , HVAC control panel etc.... All the I/P light's are controlled by the BCM - body control module . Do you know about electronic control modules ?
DTC B2610 Passenger Compartment Dimming 1 Circuit
The body control module (BCM) receives a variable voltage signal from the instrument panel (I/P) dimmer switch requesting to illuminate the instrument panel controls illumination lamps to a desired intensity. When this occurs, the BCM directly sends a variable voltage based on the I/P dimmer switch position on the backlight lamps control circuit, instrument panel lamps dimming control circuit, and the LED dimming signal circuit.
Voltage for the backlight lamps control circuit, instrument panel lamps dimming control circuit, and the LED dimming signal circuits is from the TBC 3 fuse 16 in the underhood fuse block directly through the BCM to these circuits.

• Perform a visual inspection for loose or poor connections at all related components. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
• A short to ground in the following circuits will cause the TBC 3 fuse to open:
- The backlight lamps control
- The instrument panel lamps dimming control
- The LED dimming signal
- Battery positive voltage from the underhood fuse block TBC 3 fuse
• An open in the TBC 3 fuse will cause the BCM to set the following DTC:
- B0951
- B2610
- B2625

DTC B2615 Passenger Compartment Dimming 2 Circuit
DTC B2620 Display Dimming Pulse Width Modulation (PWM) Input Circuit
DTC B2625 Display Dimming Pulse Width Modulation (PWM) Output Circuit
Do you know how to Test for a high resistance, an open, a short to ground, or a short to voltage in the following circuits. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
• 5-volt reference
• The dimming input
• The dimming return

Tow/Haul mode enables the operator to achieve enhanced shift performance when towing or hauling a load. When tow/haul mode is selected, the tow/haul switch input signal to the body control module (BCM) is momentarily toggled to zero volts. This signals the powertrain control module (PCM) or transmission control module (TCM) to extend the length of time between upshifts and increase transmission line pressure. Cycling the tow/haul switch again disables tow/haul mode and returns the transmission to a normal shift pattern.

After reading all the pertinent info. to your problem, doing testing ,Checking for DTC'S -diagnostic trouble codes in the BCM , checking power and ground's for the BCM an checking voltage at the tow / haul switch to and from the BCM .is where i would start . Do you know how to do electrical testing ? Read a wire diagram ? If not there are videos on youtube for learning how to do basic automotive electrical testing , how to read wiring diagrams etc... You can find free wiring diagrams at
http://www.bbbind.com/free_tsb.html The only thing with this is you don't have info. saying where componet location's are . This is were factory service info would be helpful

Jan 04, 2017 | Cars & Trucks

3 Answers

Blinkers don't work at all. Where can I find the fuse or relay? I'm very frustrated. I need help.


Chris, fuse could be down under the dash to the left kind of near where your left knee would be when you are driving or under hood (engine compartment) in the fuse/relay center.
It could also be faulty flasher, wiring, etc
I will post some trouble shooting links for you.
Press the helpful button.
1996 2000 Chrysler Town and Country Interior Fuse Check 2000 Chrysler Town...

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Fuse Box Location in 1999 Plymouth Grand Voyager Van

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Feb 15, 2016 | 2002 Chrysler Town & Country

2 Answers

Interior lights not working


You mite have a DTC - diagnostic trouble code stored in the BCM - body control module , The BCM controls the interior lights ! Have you heard of a BCM ?
DTC B2615
The body control module (BCM) receives a ground signal from the door jamb, liftglass/liftgate, or courtesy lamp switches requesting courtesy/dome lamp illumination. When this occurs, the BCM directly sends a voltage through the courtesy lamp supply voltage circuit illuminating the courtesy/dome lamps.
Conditions for Setting the DTC
?€¢
When the BCM receives a courtesy lamp illumination request signal and the courtesy lamp supply voltage circuit is shorted to ground.

?€¢
When the BCM is not receiving a courtesy lamp illumination request signal and the courtesy lamp supply voltage circuit is shorted to voltage or open only to the first splice from the BCM.

?€¢
There is a loss of the rear fuse block TBC 3 battery supply voltage to the BCM for more than 1 second

Diagnostic Aids
?€¢
Perform a visual inspection for loose or poor connections at all related components. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

?€¢
Only an open circuit up to the first splice from the BCM will set DTC B2615.

DTC B3801
The body control module (BCM) monitors the courtesy lamp switch signal circuit in order to determine when the courtesy/dome lamps should be illuminated. When the BCM senses that the courtesy lamp switch signal circuit is grounded when the switch is activated, the BCM will directly illuminate the courtesy/dome lamps. Do you know what a scan tool is ? not a code reader !
Courtesy Lamps Inoperative




GM Tech 2 Training video 1996

Aug 24, 2015 | 2004 Chevrolet Chevrolet TrailBlazer EXT

2 Answers

Brake light on driver side isn't working tried changing fuse and bulb and still no luck ?


Sometimes the housing the bulb is in has gone bad try cleaning out the prongs where the bulb goes in it that does not work replace the fixture the bulb goes in had the some thing happen to my trailblazer hope this helps

Jul 31, 2015 | 2006 Chevrolet Chevrolet Cobalt LS

2 Answers

Body control module location 2008 Chevy express 2500


Body Control Module (BCM) is located in the
Lower right side of the instrument panel behind the knee bolster !

Dec 29, 2014 | 2008 Chevrolet Express

1 Answer

ELECTRICAL PROBLEMS WITH TURN SIGNALS,EMERGENCY FLASHERS,PARKING LIGHTS


this car have DRL? day light running lamps?>? option
or manditory in canada. do tell !

so the fuses blew again, and you didnt look?
id fix either park/ hazzards.first
both work with key in pockets for EMERANGACY uses, even
when 100 miles from car, keys in pocket, by DESIGN. (all cars)
so due to that fact its a very simple system.
but in 2007, they makers do all they can to make it more complex
than ever necessary, (saves money with copper)
the 2 features are hot all the time, that means they wire to the
battery directly with ONLY a fuse, to stop fires.
so id bet it blew the fuse (got trailer wiring hacks in back>?) collision damage not fixed right>?
do you have the factory trailer option?????

park seems best., easier
it has 2 fuses to the rear.
the PARK relay closes, and powers the fuse and then lamps.
so both cant blow. left and right are Fuse 7 and 9
the BCM , (body brain puter) energizes the park relay
so seems its not.
my guess is the BCM has lost power.

in the dealer they can scan for BCM errors. and say fast what is wrong.

the list for PARK dead.
1. Ineffective or missing relay. 1. Test and replace park lamp relay if required. 2. Ineffective control circuit. 2. Test and repair open park lamp relay control circuit if required. 3. Ineffective switch. 3. Test and replace multi-function switch if required. 4. Ineffective BCM inputs or outputs. 4. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information.
here is my list
all park lamps burned out, (no way) but had it happen in 1980.....ask how? (alternator went nuts to 30v)
relay park missing or bad. (pray)
the park switch( in combo-mult- section switch is bad) nah.
The combo failed to tell BCM of this state change (comm fails)
the BCM failed to hear the command.
the BCM is bad or lost power (fuses)
the BCM failed to close the park relay.

the BCM has 3 power fuses. fues 34 is hot all time, id bet that fuse
allows the BCM to turn on parks, at any time.
others are key power, fuse 22, and 13. to BCM

the back unlocks doors, and does so via FOBs. car locked and parked and no key in ignition, so again, fuse 34 rears ugly head

i hang hat on 34, but got tired, if reading 50 pages of power distrabution and comms.
it is very complex car, and one of the first cars to do this....

Feb 05, 2014 | 2007 Jeep Liberty Sport

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 left rear turn signal is out on my 2006 Malibu. The bulb is good, but I replaced it anyway since I had the assembly apart. The left front flasher works fine as well. Before I try and replace any...


Stop lamp an hazard lights work ?
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.

Repair an open, high resistance, or short to ground in the inoperative turn signal supply voltage circuit. Refer to Circuit Testing and Wiring Repairs .
Did you complete the repair?

May 16, 2017 | 2006 Chevrolet Malibu

2 Answers

BCM Unit in 1996 Dodge Grand Caravan


The BCM Unit had to re-learn the systems when I put another unit in. The Windshield wipers use to come on whenever they wanted to without touching the button and the air conditioning stopped working all together, but now it works like new. Everything works perfectly but the only draw back is that the odometer jumped from 94,521 miles to 120,000 miles when I installed the new BCM Unit. I know that the miles were lower but I am happy that the van is running great and everything works just as they are suppose to. I believe that the air conditioner unit did not get the right signal from the BCM and so the motor started to smoke. I ran the engine for 10 minutes and it went away. Thanks again for the advice and have a blessed day. TED

Sep 08, 2008 | 1996 Dodge Caravan

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