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Description
While driving with the cruise control, if the ecm detects that the brake pedal is depressed, the cruise control operation will be canceled. The stop light switch sends brake pedal status signals to the ecm.
When the brake pedal is not depressed, terminal st1- is equal to the positive (+) battery voltage and terminal stp is below 1 v. When the brake pedal is depressed, the ecm cancels cruise control operation.
The ecm outputs this dtc when the voltage of terminals st1- and stp are both below 1 v for 0.5 Seconds or more at the same time. The fail-safe function operates to enable normal driving even if there is a malfunction in the stop light signal circuit.

Hint:
*: W/ vehicle stability control system
Wiring diagram

Inspection procedure

Ok: display changes according to brake pedal operation described in above table.

Standard resistance:
below 1 


Standard resistance 


Standard resistance 


Standard voltage 


Standard voltage 

Replace ecm
Vehicle speed sensor
Input signal circuit abnormalDoor control receiver
Components
Removal
Remove rear door scuff plate rh
Using a screwdriver, detach the 9 claws.
Hint:
Tape the screwdriver tip before use.
Using a clip remover, detach the 2 clips and remove
the garnish.
Remove rear door opening trim
weatherstrip rh
...
If the vehicle battery
is discharged
The following procedures may be used to start the engine if the
vehicle’s battery is discharged.
You can also call your toyota dealer or a qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by fo ...
Terminals of ecu (2006/01- )
Check air conditioning amplifier
Measure the voltage and resistance of the
connectors.
Hint:
Check from the rear of the connector while it is
connected to the air conditioning amplifier.
Hint:
*: For 2gr-fe
Using an oscilloscope, check waveform 1.
A/c compressor* ...