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Genchi Genbutsu
Genchi Genbutsu, Toyota Master Technician
Category: Toyota
Satisfied Customers: 4395
Experience:  Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine
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2004 toyota 4runner: cuts..reverse..vsc and TRAC lights comes on.

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i am working on a 2004 toyota 4runner. When i start all sensor lights comes on and then cuts off as it should be . When i put it in gear ( reverse or drive ) and i move about 1 foot the VSC and TRAC lights comes on.. It remains on for the entire trip. If i shut off and restart, all the lights cut off normally, and when i put it in gear and vehicle moves little it comes on again.

Genchi Genbutsu :

Did you just check the vehicle for codes in the computer?

Customer:

I used the hand held computer and it said all passed

Genchi Genbutsu :

Correct, that is what caused this condition. For future reference, leave the 4Runner running when checking codes and this won't happen. Yoy should see a code C1203 stored for Zero Point Calibration Undone. Here is the TSB that will help restore the calibration...

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Please reply back if you still have questions or need help.

 

Genchi

 

Customer: replied 6 years ago.
How to make the tire pressure light go off. All the tries including spare has correct psi

If the light comes on and stays on, then fill all 5 tires to 36 psi and the light should go off by itself.

 

If the light comes on, flashes and then stays on, then there is a problem with one of the sensors and it will need to be replaced and coded to the computer.

 

Genchi

 

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