Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello & Welcome,
I just want to verify that this is 2001 Sunfire, as you have the optional information area with a Ford Windstar.
Also, did you test all the fuses with a test light or multimeter, while they were in the vehicle?
Hi again, sorry for the delay - I was off line for a while.
What I was looking to see is if you actually checked for power at the components, like the switch and flasher and bulbs, when you were trying to use them.
I understand about early wake up calls. I have them all the time.
I will see if I can get a schematic that will show where you can test for power to the lights. I believe there are separate fuses for the brakes, hazards, and turn signals, so there will be a few places to test.
Check back tomorrow and I should have that for you here.
Take Care, Greg A.
Hi again, Hope you got some sleep.
Here is the schematic that shows the main components of the brake lights, and the turn and hazard lights.
I forgot to ask you if the center brake light works. If it does, that proves that Stop/Haz fuse is good and the brake light switch (on the brake pedal) is good too.
If that is the case, then you will notice that the signal then goes to the turn signal switch, and then to the brake lights in the back of the vehicle.
What I would do is use a test light or multimeter to see if there is power getting to each of the bulbs, when the brake pedal is pressed. If you find no power, then you could turn on the hazard flasher and check again. You can also check that power is making it to the flasher module and it is coming out, in pulses, when the hazard switch is turned on. The pin numbers and wires colors are shown on the schematic.
Please let me know what you find to that point, and we can continue of necessary.
Testing for power at the components is key. I would start at the brake light switch, at the brake pedal. Power should always be at the Orange wire (pin A), and should appear on the White wire (pin B) when the pedal is pressed.
Please let me know what you find.
You are quite welcome,
I am glad you found the issues & restored operation to your long disfunctional speed control.
I just wanted to let you know also that you gave me a chuckle with your description of the "upside-down" troubleshooting process. I always like to refer that kind of work to the younger crowd now.