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.

READ VALUE OF INTELLIGENT TESTER (UNLOCK WARNING SWITCH)

Use the DATA LIST to check if the unlock warning switch is functioning properly.

Main body ECU

MAIN BODY ECU DATA LIST REFERENCE

Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
KEY UNLK WRN SW	Unlock warning switch signal / ON or OFF	ON: Key is in ignition key cylinder OFF: No key is in ignition key cylinder	-

OK: When the switch is operating, the intelligent tester should display as shown in the table.

NG: Go to step 5

OK: Go TO NEXT STEP.

READ VALUE OF INTELLIGENT TESTER (DRIVER SIDE DOOR COURTESY LIGHT SWITCH)

Use the DATA LIST to check if the door courtesy light switch is functioning properly.

Main body ECU

MAIN BODY ECU DATA LIST REFERENCE

Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
D DOR CTY SW	Driver side door courtesy light switch signal / ON or OFF	ON: Driver side door is open OFF: Driver side door is closed	-

OK: When the switch is operating, the intelligent tester should display as shown in the table.

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)

NG: Go TO NEXT STEP.

INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

Remove the front door courtesy light switch.

Measure the resistance of the switch.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
1 - Body ground	Not pushed (ON)	Below 1 Ω
1 - Body ground	Pushed (OFF)	10 kΩ or higher

Fig 1: Inspecting Front Door Courtesy Light Switch Assembly LH

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

OK: Go TO NEXT STEP.

CHECK WIRE HARNESS (ECU - SWITCH)

Disconnect the K7 switch connector.
Disconnect the IA junction block connector.

Measure the resistance of the wire harness side connectors.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Specified Condition
K7-1 - IA-21 (DCTY)	Below 1 Ω

Fig 2: Identifying K7 Switch And IA Junction Block Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)

INSPECT UNLOCK WARNING SWITCH ASSEMBLY

Remove the unlock warning switch.

Measure the resistance of the switch.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
1-- 2	Not pushed	10 kΩ or higher
1-- 2	Pushed	Below 1 Ω

Fig 3: Inspecting Unlock Warning Switch Assembly

NG: REPLACE UNLOCK WARNING SWITCH ASSEMBLY

OK: Go TO NEXT STEP.

CHECK WIRE HARNESS (SWITCH - ECU)

Disconnect the E6 switch connector.
Disconnect the IE junction block connector.

Measure the resistance of the wire harness side connectors.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Specified Condition
E6-1 - Body ground	Below 1 Ω
E6-1 - IE26 (KSW)	Below 1 Ω

Fig 4: Identifying E6 Switch And IE Junction Block Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)