Question about 1990 Chevrolet S-10 Blazer

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Turn signals i have no power to the fuse for the turn and bu lights, the fuse is good

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Flasher relay under dash or grounds need cleaned

Posted on Jan 16, 2009

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SOURCE: no turn signals, no tail lights and fuses are good

Replace the non-working tail light bulb. Try replacing the bulbs for the turn signals. If that doesn't work, replace the relay.

Posted on May 24, 2009

  • 245 Answers

SOURCE: The left turn signal stopped working, then the

20amp turn on four ways and parking lights go around replace any bad bulbs turn of for ways tern key on tern right tern on go around se if blinking tern on left and se if not chang flash thears 2 flashers switch the tow to se witch is bade.chek fuse for the right amp look inside fuse cover for right amp

Posted on Jan 26, 2010

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1988 chevy 1500 everythingworks exept brake light turn signal ok tailghts ok no brake lights


Since the turns work in the back, that means the brake bulbs are good. Brake lights and turn signal lights share the same filament in the bulb.
There is a fuse for the brake lights. Then, there is a brake light switch on the brake pedal. You need a voltmeter or test light, after checking that fuse is good. Need to check if fuse has power on it. This is one of those fuses that are hot at all times-as long as battery is connected, voltage should be going through the fuse and up to the brake light switch. Check for power both places. The switch on the pedal is a simple on-off switch. When brake is depressed, the spring loaded switch is turned on-passing power on towards the brake lights.
But then the brake wire goes into the turn signal switch before going on to the brake bulbs...however, since your turns work good, I doubt if there is a problem in the turn switch. First check if the brake light switch is sending power on when switch is on.
Let me know what you find. Good luck.

Nov 27, 2013 | 2000 Ford Focus

1 Answer

1990 Ford f250 brake lights and turn signals won't work - checked all fuses, flasher and bulbs and all are good, what could problem be??


Well the brake light and turn signal circuits are on two different fuses, but they both go thru the turn signal switch.
So I would start by checking for power in and out of the turn signal switch for each circuit.

Apr 07, 2013 | 1990 Ford F250

1 Answer

Iv got an 88 F150 4x4 iv got turn signals light fuse is good got power at break switch need no break lights and is there suppost 2 b 1 r 2 wires coming out of fuse box


Do you have power at both sides of the brake switch when the brake is applied? If so it sounds like the turn signal switch is bad. try turning on and off the 4 ways a few times. sometimes this will clean the connections and it will start working.
The power goes through the fuse to the brake switch. from the brake switch to the turn signal switch from the turn signal switch to the tail lights. If the 4 ways are on the power goes through the 4 way fuse to the 4 way flashers then to both sides.
If the turn signal is on and the brake is on, the turn switch cansles the power from the brake and uses power from a 3 fuse and flasher for the side that the turn signal is called for.
If I typed to fast let me know. I can answer any questions you might have.
If this helped you please vote 4 thumbs up. :-)
good Luck and God Bless

Jun 07, 2011 | 1988 Ford F 150

2 Answers

Will advance auto check the fuses?


All you can do, is ask
They are parts people,not mechanics,
so don't expect much.

Mar 03, 2011 | Jeep Grand Cherokee Cars & Trucks

1 Answer

Have a 1999 Chev. Suburban. Problem is with brake lights. Top panel (on roof) works but neither side panel works. Replaced circut boards in tail lights, new bulbs, and all fuses are good. What next?


WITH A GOOD FUSE TESTER, TEST ALL THE FUSES FUSEBOX UNDER THE HOOD & INSIDE THE VEHICLE. IF THE FUSES ARE ALL GOOD WITH THE TESTER YOU MUST HAVE A BAD BRAKE LIGHT SWITCH OR A BAD TURN SIGNAL SWITCH. THE BRAKE LIGHT CIRCUIT GOES UP THROUGH THE TURN SIGNAL SWITCH & THEN TO THE BRAKE LIGHTS. FIRST OF ALL IS THE BRAKE LIGHT SWITCH GOOD ? THE ORANGE WIRE FEEDS THE BRAKE LIGHT SWITCH, THE WHITE WIRE PUTS POWER TO THE TURN SIGNAL SWITCH, SO THE LIGHTS CAN BE USED AS TURN LIGHTS OR BRAKE LIGHTS. , PUT A TESTER IN THE WHITE WIRE & PRESS ON THE BRAKE PEDAL. IF THE TEST LIGHT LIGHTS UP, BRAKE LIGHT SWITCH IS GOOD, BY THE WAY THE BRAKE LIGHT FUSE MAY BE LABELED" STOP", THE FUSE LABELED" BRAKE" IS FOR THE ABS SYSTEM. TO CHECK THE TURN SIGNAL SWITCH FOR BRAKE LIGHTS, REMOVE THE PLASTIC COVER FROM UNDER THE STEERING WHEEL, PRESS ON THE BRAKE PEDAL, PUT THE TESTER IN THE SMALL YELLOW WIRE, THEN THE SMALL GREEN WIRE. IF THERE IS NO POWER IN EITHER WIRE, THE TURN SIGNAL SWITCH IS BAD.

Jan 11, 2011 | 1999 Chevrolet Suburban

1 Answer

Can`t locate the fuse for the Brake switch. Brake light not working as well as 4 ways. Also shifter locked in Park


There are 3 fuses related to the problems you mentioned. fuse #13 20amp for the stop lights/fuse #15 5amp for the generic elec. module/powertrain ctl.
module/anti lock brake module and one you need the
shift interlock. Fuse # 28 10amp for the brk. shift
interlock/day running lights/bu lamp/tlr bu lamp and
4wd shift on the fly solenoid. The fuse block is behind
the panel on the left lower dash. You can check these fuse's first. But also, use a 12v test light to
check for power out of the bl switch on top of the
brake peddle assy. There is a red/lt green wire from
the bl switch into the colum to the shift lock actuator
check for power at this wire with brake peddle pushed
down. If the fuse's are good but no pwr. out of the
switch, replace the switch. Hope this helps.

Mar 22, 2010 | 1999 Ford Super Duty F 450

1 Answer

The left turn signal stopped working, then the right. Now the blower and the abs light is on. I changed the turn signal switch/hazzerd/wipers. And the 10 amp fuse keeps blowing. Marked turn/bu/abs


20amp turn on four ways and parking lights go around replace any bad bulbs turn of for ways tern key on tern right tern on go around se if blinking tern on left and se if not chang flash thears 2 flashers switch the tow to se witch is bade.chek fuse for the right amp look inside fuse cover for right amp

Jan 26, 2010 | 2000 Dodge Caravan

1 Answer

Checked all fuses-good, swapped bulbs-good, hazard lights-good, head lights good, turn signals-good but no brake lights. 1995 chevy silverado


Does the turn signals or hazards work in the rear?? Yes... it may be the brake switch or the turn signal switch (power goes from battery, to the brake switch then to the turn signal switch, then to the lights. No? .. again.. possibly turn signal switch or the wiring between cab and bed.

Jun 04, 2009 | 1996 Chevrolet K1500

2 Answers

No turn signals or side brake lights on 94 chevy suburban


the problen is probably the turn signal switch with a test light check for power at brake switch if no power check for power at turn signal switch the brake lights are incorperated through the turn signal switch

Oct 18, 2008 | 1994 Chevrolet Suburban

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