Toyota Camry Manual page 1391

DI–364
INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand–held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine warmed up or not, the air–fuel ratio lean or rich, etc.
at the time of the malfunction.
1 Check operation of stop light.
CHECK:
Check if the stop lights go on and off normally when the brake pedal is operated and released.
OK
2 Check STP signal.
ON
Brake Pedal
Depressed
ON
NG
DIAGNOSTICS
NG
When using TOYOTA hand–held tester:
PREPARATION:
(a)
(b)
Brake Pedal
Released
CHECK:
Read the STP signal on the TOYOTA hand–held tester.
OK:
When not using TOYOTA hand–held tester:
PREPARATION:
Turn the ignition switch ON.
CHECK:
Check voltage between terminal STP of the ECM connector
and body ground.
OK:
STP (+)
A02037
OK
– ENGINE (1MZ–FE)
Check and repair stop light circuit.
Connect the TOYOTA hand–held tester to the DLC3.
Turn the ignition switch ON and push the TOYOTA hand–
held tester main switch ON.
Brake pedal is depressed: STP ...... ON
Brake pedal is released:
Brake pedal
Depressed
Released
Check for intermittent problems
(See page DI–197).
Author :
STP ...... OFF
Voltage
7.5 ∼ 14 V
Below 1.5 V
Date :
599