Inspection Procedure

1. Disconnect the K48 and K46 display connectors.
2. Measure the resistance of the multi-display connectors.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   K48-2 (HAZ) - K46-10 (GND1)	Hazard warning switch OFF	10 kΩ or higher
   K48-2 (HAZ) - K46-10 (GND1)	Hazard warning switch ON	Below 1 Ω

   OK: 

   Hazard warning switch is normal. 

Fig 1: Identifying Multi-Display (Hazard Warning Switch) Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE MULTI-DISPLAY 

OK: Go to next step 

1. Disconnect the K48 and K46 display connectors.
2. Disconnect the K25 flasher connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   K48-2 (HAZ) - K25-8 (HAZ)	Below 1 Ω
   K48-2 (HAZ) or K25-8 (HAZ) - Body ground	10 kΩ or higher
   K46-10 (GND1) - Body ground	Below 1 Ω

Fig 2: Identifying Multi-Display (Hazard Warning Switch) - Turn Signal Flasher Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE TURN SIGNAL FLASHER