Tacoma PreRunner Reg Cab 2WD L4-2.7L (3RZ-FE) (1999)
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Brake Signal: Testing and Inspection
Engine
CIRCUIT DESCRIPTION
This signal is used to detect when the brakes have been applied. The BK signal voltage is the same as the voltage supplied to the stop lights.
The BK signal is used mainly to control the fuel cut-off engine speed. (The fuel cut-off engine speed is reduced slightly when the vehicle is braking.)
DETECTING CONDITIONS
WIRING DIAGRAM
Step 1
