Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Using the intelligent tester's DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.

NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Warm up the engine.
Turn the ignition switch OFF.
Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
Turn the ignition switch ON and turn the tester ON.
Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.

Follow the instructions on the tester and read the DATA LIST.

DIAGNOSTIC REFERENCE

Item	Measurement Item/Range (Display)	Normal Condition	Diagnostic Note
STOP LIGHT SW	Stop light switch status/ON or OFF	Brake pedal is depressed: ON Brake pedal is released: OFF	-

INSPECT STOP LIGHT SWITCH

Remove the A3 stop light switch.

Measure the resistance of the switch.

Standard resistance

RESISTANCE REFERENCE

Tester Connection	Switch Condition	Specified Condition
1 - 2	Pin pushed (pedal released)	Below 1 Ω
1 - 2	Pin not pushed (pedal depressed)	10 kΩ or higher
3 - 4	Pin pushed (pedal released)	10 kΩ or higher
3 - 4	Pin not pushed (pedal depressed)	Below 1 Ω

NG: REPLACE STOP LIGHT SWITCH

Fig 1: Inspecting Stop Light Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go TO NEXT STEP.

CHECK WIRE HARNESS (ECM - BATTERY)

Measure the voltage of the wire harness side connector.

Standard voltage

VOLTAGE REFERENCE

Tester Connection	Condition	Specified Condition
A9-36 (STP) - Body ground	Brake pedal is depressed	10 to 14 V
A9-36 (STP) - Body ground	Brake pedal is released	Below 1 V

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 2: Checking Wire Harness (ECM - Battery)

OK: REPLACE ECM