Question about 1999 Jeep Cherokee

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Turn signals Both turn signals stopped working.

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  • nick_tinafin Oct 22, 2008

    2000 cherokee sport/ where is the location of the flasher for the signal lights?



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Change the flasher

Posted on Sep 24, 2008


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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

Left turn signal stops working

Had simular problem with wife 2000 Jeep Cherookee.
My signal light were not working at all.Check flasher relay under steering colum

Nov 28, 2012 | 2000 Jeep Grand Cherokee

1 Answer

Turn signals stopped working

Sounds like the flasher is out. Really cheap fix. New ones are about $5-10.

Feb 17, 2012 | 1995 Mitsubishi Eclipse

1 Answer

1997 Chevy Tahoe both turn signals stopped working

Sounds like the flasher unit to me. Normally the emergency flasher and turn signal are separate.

Jul 21, 2009 | 2001 Chevrolet Tahoe

1 Answer

Turn signal problems on 98 Grand Voyager

Replace the turn signal relay. (daylight running lights and turn signal in one unit) It costs about 50 dollars.

Jun 21, 2009 | 1998 Plymouth Grand Voyager

1 Answer

Turn signal lights stop working. Neither the right or left turn signal work. Heard a noise before it stop working. The flashing started slowing down and stop blinking. Now it doesn't work at all. What

most likely its the turn signal relay. which is under the hood. in the fuse box. also make sure ur running lights are working if they are connected to the turn signal.

May 08, 2009 | 1993 Nissan Pathfinder

1 Answer

Turn signal not blinking

Yes, u can repair this, Check the flasher, it controls the turn signals and probably needs to be replaced. Usually mounted on the fuse block. Let me know how u make out.

Nov 12, 2008 | 2001 Oldsmobile Bravada

1 Answer

Turn signal

Now replace the flasher unit! Frankster016

Oct 25, 2008 | 2002 Nissan Xterra

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