Toyota Camry Manual page 317

AX2–130
INSPECTION PROCEDURE
Check operation of stop light.
Connect TOYOTA hand–held tester and check STP signal.
Check harness and connector between ECM and stop light switch.
Check and replace ECM.
AUTOMATIC TRANSAXLE – TROUBLESHOOTING
Check if the stop lights go on and off normally
when the brake pedal is operated and released.
Check and repair stop light circuit.
1. Remove the fuse cover on the instrument
panel.
2. Connect the TOYOTA hand–held tester to the
DLC 3 (OBD II connector).
3. Turn ignition switch ON and TOYOTA hand–
held tester main switch ON.
Read the STP signal on the TOYOTA hand–held
tester.
Brake pedal is depressed: STP ON
Brake pedal is released: STP OFF
Proceed to next circuit inspection shown
on matrix chart (See page AX2–81).
Repair or replace harness or connector.