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.

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (MAIN BODY ECU)

Connect the intelligent tester (with CAN VIM) to the DLC3.
Turn the ignition switch to the ON position and press the intelligent tester main switch ON.

Select the items below in the ACTIVE TEST and then check the main body ECU operation.

Main body ECU

ACTIVE TEST REFERENCE (MAIN BODY ECU)

Item	Test Details	Diagnostic Note
ILLUMI OUTPUT	Test Details: Turn interior light and key illumination ON/OFF Vehicle Condition: Interior light SW is in DOOR position and all doors are closed	-

OK: Light comes on.

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

NG: Go TO NEXT STEP.

INSPECT FUSE (DOME)
1. Remove the DOME fuse from the engine room No. 2 relay block.
2. Measure the resistance of the fuse.
  Standard resistance:
  
  Below 1 Ω
NG: REPLACE FUSE

OK: Go TO NEXT STEP.

INSPECT ROOM LIGHT ASSEMBLY

Remove the room light assembly.

Measure the resistance of the room light switch base.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
1 - 2 1 - 3	OFF	10 kΩ or higher
1 - 2	DOOR	Below 1 Ω
1 - 3	ON	Below 1 Ω

Fig 1: Identifying Room Light Switch Base

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE ROOM LIGHT ASSEMBLY

OK: Go TO NEXT STEP.

INSPECT ROOM LIGHT BULB
1. Remove the room light assembly.
2. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, then check that the light comes on when the switch is in the DOOR position.
  OK: Light comes on.
3. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 3, then check that the light comes on when the switch is in the ON position.
  
  Fig 2: Connecting Battery To Room Light Switch Base Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: Light comes on.
NG: REPLACE BULB

OK: Go TO NEXT STEP.

CHECK HARNESS AND CONNECTOR (BATTERY - ROOM LIGHT AND MAIN BODY ECU)

Disconnect the IK instrument panel junction block connector.

Measure the voltage of the wire harness side connector.

Standard voltage

VOLTAGE SPECIFIED CONDITIONS

Tester Connection	Condition	Specified Condition
IK-2 (ILE) - Body ground	Room light switch in DOOR position	10 to 14 V

Fig 3: Identifying IK Instrument Panel Junction Block Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go TO NEXT STEP.

INSPECT MAP LIGHT BULB
1. Remove the map light assembly.
2. Connect the positive (+) lead from the battery to terminal 6 and the negative (-) lead to terminal 1, then check that the light comes on when the switch is in the DOOR position.
  
  Fig 4: Battery Connection To MAP Light Bulb Terminals (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: Light comes on.
3. Connect the positive (+) lead from the battery to terminal 6 and the negative (-) lead to terminal 7, then check that the light comes on when the switch is in the ON position.
  
  Fig 5: Battery Connection To MAP Light Bulb Terminals (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: Light comes on.
OK: Go to step 8

NG: Go TO NEXT STEP.
INSPECT MAP LIGHT
1. Replace the map light bulb with a normally functioning one or a new one.
2. Connect the positive (+) lead from the battery to terminal 6 and the negative (-) lead to terminal 1, then check that the light comes on when the switch is in the DOOR position.
  
  Fig 6: Battery Connection To MAP Light Bulb Terminals (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: Light comes on.
3. Connect the positive (+) lead from the battery to terminal 6 and the negative (-) lead to terminal 7, then check that the light comes on when the switch is in the ON position.
  
  Fig 7: Battery Connection To MAP Light Bulb Terminals (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: Light comes on.
NG: REPLACE MAP LIGHT ASSEMBLY

OK: REPLACE MAP LIGHT BULB

CHECK WIRE HARNESS (BATTERY - MAP LIGHT AND MAIN BODY ECU)

Disconnect the IK instrument panel junction block connector.

Measure the voltage of the wire harness side connector.

Standard voltage

VOLTAGE SPECIFIED CONDITIONS

Tester Connection	Condition	Specified Condition
IK-2 (ILE) - Body ground	Room light switch in DOOR position	10 to 14 V

Fig 8: Identifying IK Instrument Panel Junction Block Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go TO NEXT STEP.

INSPECT IGNITION KEY CYLINDER LIGHT
1. w/Engine Immobilizer System
  1. Remove the transponder key amplifier (ignition key cylinder light).
  2. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 6, then check that the light comes on.
    
    Fig 9: Inspecting Ignition Key Cylinder Light (w/Engine Immobilizer System)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    OK: Light comes on.
2. w/o Engine Immobilizer System
  1. Remove the ignition key cylinder light.
  2. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, then check that the light comes on.
    
    Fig 10: Inspecting Ignition Key Cylinder Light (w/o Engine Immobilizer System)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    OK: Light comes on.
NG: REPLACE IGNITION KEY CYLINDER LIGHT

OK: Go TO NEXT STEP.

CHECK WIRE HARNESS (BATTERY - MAIN BODY ECU)

Disconnect the IE instrument panel junction block connector.

Measure the voltage of the wire harness side connector.

VOLTAGE SPECIFIED CONDITIONS

Tester Connection	Specified Condition
IE-27 (ILE) - Body ground	10 to 14 V

Fig 11: Locating IE Instrument Panel Junction Block Connector

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK