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

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

Select the item below in the ACTIVE TEST and then check the relay operation.

Main body ECU

ACTIVE TEST REFERENCE (MAIN BODY ECU)

Item	Test Details/Display (Range)	Diagnostic Note
HAZARD	HAZARD ON/OFF	-

OK: All hazard warning signal lights flash.

OK: Go to step 5

NG: Go TO NEXT STEP.

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

OK: Go TO NEXT STEP.

CHECK WIRE HARNESS (TURN SIGNAL FLASHER RELAY - BATTERY)

Remove the turn signal flasher relay from the instrument panel junction block.

Measure the voltage of the wire harness side connector.

Standard voltage

VOLTAGE SPECIFIED CONDITIONS

Tester Connection	Specified Condition
Junction Block turn signal flasher Relay terminal 4 (+B) - Body ground	10 to 14 V

Fig 1: Locating Turn Signal Flasher Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go TO NEXT STEP.

CHECK OPERATION OF TURN SIGNAL FLASHER RELAY (Marking: FLSH)

Replace the turn signal flasher relay with a normally functioning one or a new one.
Check that the appropriate turn signal light flashes.
Connect the intelligent tester (with CAN VIM) to the DLC3.
Turn the ignition switch ON and press the intelligent tester main switch ON.

Select the item below in the ACTIVE TEST and then check the relay operation.

Main body ECU

MAIN BODY ECU ACTIVE TEST REFERENCE

Item	Test Details / Display (Range)	Diagnostic Note
HAZARD	HAZARD ON / OFF	-

OK: All hazard warning signal lights flash.

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (JUNCTION BLOCK - HAZARD WARNING SIGNAL SWITCH)

OK: REPLACE TURN SIGNAL FLASHER RELAY

INSPECT HAZARD WARNING SIGNAL SWITCH

Remove the hazard warning signal switch.

Measure the resistance of the switch.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Condition	Specified Condition
1 - 4	OFF	10 kΩ or higher
1 - 4	ON	Below 23.4 Ω

Fig 2: Identifying Hazard Warning Signal Switch Connector Terminals

NG: REPLACE HAZARD WARNING SIGNAL SWITCH

OK: REPAIR OR REPLACE HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH - BODY GROUND)