No brake lights help
08-01-2014, 06:31 PM
#11
Senior Member
I think in A/T the ENGINE WILL STALL everytime you stop if the
BOO (Brake On/Off) Sensor is not working.
The PCM is using this BOO Sensor to engage/disengage the Torque Converter Clutch.
BOO (Brake On/Off) Sensor is not working.
The PCM is using this BOO Sensor to engage/disengage the Torque Converter Clutch.
Last edited by w0lvez; 08-01-2014 at 06:34 PM.
08-01-2014, 06:46 PM
#12
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Runs just fine, I can release it from Park etc as well. Both switches are changed now so rules that out.
The fact that all 3 lights are out makes me think a fundamental wiring issue. I am sure that the rear stop lights and the middle light will be different circuits.
I just need to identify where the power loss is happening. Not to sharp with electrics but I will get there.
The fact that all 3 lights are out makes me think a fundamental wiring issue. I am sure that the rear stop lights and the middle light will be different circuits.
I just need to identify where the power loss is happening. Not to sharp with electrics but I will get there.
08-01-2014, 07:18 PM
#13
Senior Member
Runs just fine, I can release it from Park etc as well. Both switches are changed now so rules that out.
The fact that all 3 lights are out makes me think a fundamental wiring issue. I am sure that the rear stop lights and the middle light will be different circuits.
I just need to identify where the power loss is happening. Not to sharp with electrics but I will get there.
The fact that all 3 lights are out makes me think a fundamental wiring issue. I am sure that the rear stop lights and the middle light will be different circuits.
I just need to identify where the power loss is happening. Not to sharp with electrics but I will get there.
If you pull the tail light housings (easy to do) you can inspect the wiring further.
08-01-2014, 11:41 PM
#14
Senior Member
Runs just fine, I can release it from Park etc as well. Both switches are changed now so rules that out.
The fact that all 3 lights are out makes me think a fundamental wiring issue. I am sure that the rear stop lights and the middle light will be different circuits.
I just need to identify where the power loss is happening. Not to sharp with electrics but I will get there.
The fact that all 3 lights are out makes me think a fundamental wiring issue. I am sure that the rear stop lights and the middle light will be different circuits.
I just need to identify where the power loss is happening. Not to sharp with electrics but I will get there.
If the brake lights are burned or not working it will cause rough idle on drive including the 3rd Brake Light,
Are you Sure fuse #15 is good?
Last edited by w0lvez; 08-01-2014 at 11:54 PM.
08-02-2014, 01:26 AM
#15
Does it really cause rough idle if just your 3rd brake light is not working? Mine is not working and it idles and runs perfect.
08-02-2014, 02:11 AM
#16
Senior Member
Does your Engine Idle Smoothly in Drive while stepping the brakes just like in Neutral all the time?
Last edited by w0lvez; 08-02-2014 at 02:16 AM.
08-02-2014, 04:33 AM
#17
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No issues with the drivability of the Truck. So that makes me think all inputs to the switches and GEM is fine.
If the parking switch was broke it wouldn't shift out of Park I don't think.
I think I need to try and see where the power is not getting through to at each point of both circuits.
If the parking switch was broke it wouldn't shift out of Park I don't think.
I think I need to try and see where the power is not getting through to at each point of both circuits.
08-02-2014, 07:18 AM
#18
Senior Member
No issues with the drivability of the Truck. So that makes me think all inputs to the switches and GEM is fine.
If the parking switch was broke it wouldn't shift out of Park I don't think.
I think I need to try and see where the power is not getting through to at each point of both circuits.
If the parking switch was broke it wouldn't shift out of Park I don't think.
I think I need to try and see where the power is not getting through to at each point of both circuits.
Last edited by w0lvez; 08-02-2014 at 07:27 AM.
08-02-2014, 07:25 AM
#19
Senior Member
08-02-2014, 07:43 AM
#20
Senior Member
REPLACING YOUR BRAKE LIGHTS BULB WILL SOLVE THE PROBLEM.
All your Brake Lights are burned out triggering the fail Safe mode.
All your Brake Lights are burned out triggering the fail Safe mode.
Last edited by w0lvez; 08-02-2014 at 07:46 AM.