Question about 1998 Pontiac Sunfire

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Left rear brake does not have as much stopping power as right

Changed left side did not make much difference failed inspection

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Hi
Possibly partially blocked rubber brake hose to this caliper, or the caliper pistons are seized.
Good Luck !
John.

Posted on Jan 15, 2009

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Posted on Jan 02, 2017

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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

2 Answers

Brake lights 2001 Oldsmobile aurora


switch may have failed under dash at brake pedal arm or got unplugged but BIG FEET

Sep 10, 2015 | 2001 Oldsmobile Aurora

1 Answer

Left bleaker and break light not working. Turn signal works bleaks faster than right side.


Has the vehicle been in an accident on the left rear side. First check the bulb to be sure it is not defective, trade it out with the side that works properly to test. If the bulb works well then My thought are you may have a shorted wire. The turn signal flasher works by heat build up within the flasher the heat is caused by the load of the bulbs, the load heats the metal spring causing it to open the circuit then as quickly as it cools down the circuit closes again lighting the bulbs.
There is also a possibility of a defect in the turn signal mechanism on the steering column. The turn signal switch on many models does three different things on many models that use the same bulb element / or bulb for brake and turn on rear of vehicle. It controls the circuit for brake light by sending power both left and right side rear when turn signal is in neutral position then when turn signal is in left turn the switch cancels brake light power to left side rear and supplies flasher power to left side while maintaining brake light supply to the right side rear, and so on opposite when the right turn is chosen on turn signal switch. The turn signal indicators on the dash normally run off the same circuit as front turn signal bulb only which is also controlled by turn signal switch. Front has turn signals but no brake light.
I think there is an additional load on the left side rear turn circuit and it could be either a wire that is shorted or the turn signal switch if the same bulb element is used for both functions.
Often times if trailer lighting is connected the flasher will also blink a little faster because of the extra load of additional bulbs.

Feb 15, 2015 | Cars & Trucks

1 Answer

Right rear brakes keeps messing up on a 1998 Chrysler Cirrus, we keep buying new right rear brakes about every two months or less. Can you help us out?


You have to make sure the brake system is operating properly.Change both rear brakes it sounds like the left rear brake side is not working making the right side wear out so quick.After changing the back brakes bleed them making sure you have no air in your brake lines.start bleeding them from the left rear to the right rear to the left front to right front to master cylinder.

Apr 02, 2014 | 1998 Chrysler Cirrus

1 Answer

How to wire trailer plug


hope this helps


6 pin socket

w1s.jpg

w1p.jpg

6 pin plug


7 pin socket

w2s.jpg

w2p.jpg

7 pin plug


5 pin socket

w3s.jpg

w3p.jpg

5 pin plug



7 pin socket

w4s.jpg

w4p.jpg

7 pin plug



7 pin socket

w5s.jpg

w5p.jpg

7 pin plug



7 pin socket

w6.jpg

7 pin plug





12 pin socket

w7.jpg

12 pin plug



small 6 pin round plug & socket

1 tail, clearance - brown

2 left hand turn - yellow

3 right hand turn - green

4 stop - red

5 electric brakes - blue

6 earth - white



small 7 pin round plug & socket

1 left hand turn - yellow

2 reverse - black

3 earth - white

4 right hand turn - green

5 electric brakes - blue

6 stop - red

7 tail, clearance, side markers - brown

roundskt.jpg round socket

large 5 pin round plug & socket

2 left hand turn - yellow

3 earth - white

5 right hand turn - green

6 stop - red

7 tail, clearance, side markers - brown



large 7 pin round plug & socket

1 left hand turn - yellow

2 reverse - black

3 earth - white

4 right hand turn - green

5 electric brakes - blue

6 stop - red

7 tail, clearance, side markers - brown



7 pin round heavy duty plug & socket

1 earth - white

2 left hand rear , clearance and marker - black

3 left hand turn - yellow

4 stop - red

5 right hand turn - green

6 right hand rear , clearance and marker - brown

7 reverse/auxilary - blue



7 pin flat plug & socket

1 left hand turn - yellow

2 reverse - black

3 earth - white

4 right hand turn - green

5 electric brakes - blue

6 stop - red

7 tail, clearance, side markers - brown


7_flatsocket.jpg flat socket

12 pin flat plug & socket

1 left hand turn - yellow

2 reverse - black

3 earth - white

4 right hand turn - green

5 electric brakes - blue

6 stop - red

7 tail, clearance, side markers - brown

8 battery supply - orange

9 auxiliaries - pink

10 earth - white

11 rear fog lamp - grey

12 auxiliaries - violet


Feb 02, 2013 | 2004 Toyota RAV4

1 Answer

1987 toyota camry. i change the brake light switch on the break pedal and the brake lights still dont work! where would i find the stop light relay?


Hi Earl, I do not believe there is a relay for the stop lights. Make up a test lamp and inspect the power supply from the brake light switch through to the rear lamp clusters. You will notice that the circuits connect to the lamp failure unit (When standing behind the vehicle, it is usually found on the right side, behind the carpets of the trunk (boot) and mounted on the inner frame adjacent to the right hand lid hinge.) If power is reaching, check for earth connections of the brake lights. Happy new year and regards John

Jan 06, 2013 | Cars & Trucks

2 Answers

I have a 2004 Mazda MPV with some wierd brake issues. I found what appeared to be a bad caliper on front passenger side, and replaced with a new one, yet this same wheel continues to seize up. What is...


If the caliper is seizing and it is not the caliper it is the module that controls how the brake fluid is distributed. I don't have my book in front of me at the moment but when you look under teh hood on teh drivers side you will see a block that has the brake lines coming out of it. That is part of teh ABS system is one is installed and is a master brake control hub if it ABS isn't installed. being that new I would assume it was equipped with ABS. There are a couple of ways you can test if this is teh problem. If I remember correctly the MPV brakes with all 4 brakes, that means you can, as a temp test, switch the lines to see if the caliper problem changes to the different caliper. If it does then you know for a fact it is that unit and not the caliper. Also, something to consider, the caliper that is locking maybe locking because the problem is actually the caliper on the opposite side. If the caliper on the left front is stuck in the open position, on occasion that will cause too much fluid pressure to the right front giving you the impression the problem is the right side and it isn't. This is rare but certainly a possibility. As a general rule you should always replace Calipers in pairs. If you replace the right front you should replace the left front, same with the rear calipers.

Feb 15, 2011 | 2004 Mazda MPV

2 Answers

1997 dodge ram pulling to the right please help!!!!!!!!!!!


Make sure the rubber part of the brake hose is not collapsed inside of it. If it is the brake fluid will not flow through it.
Most vehicles have a rubber hose on each side in the front and some even in the back...

Oct 31, 2009 | 1990 Toyota 4Runner

2 Answers

How to do parking brake adjustment 2002 silverado?


Adjust your service brake first and then, if need be, adjust the handbrake.
To adjust the handbrake, look for the threaded rod, which should be under the left side of the vehicle, about midway. Hold the rod from spinning, and tighten up the nut.

Aug 18, 2009 | 2002 Chevrolet Silverado 1500

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