Inspection Procedure

1. Remove the AM1, GAUGE, FL DOOR fuses from the instrument panel junction block.
2. Measure the resistance of the fuses.

   Standard resistance: 

   Below 1 Ω 

NG: REPLACE FUSE 

OK: GO TO NEXT STEP 

1. Remove the IG1 relay from the instrument panel junction block.
2. Measure the resistance of the relay.

   Standard resistance 

   IG1 RELAY STANDARD RESISTANCE SPECIFICATIONS
   
   

   Tester Connection	Specified Condition
   3-5	10 kΩ or higher
   3-5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

NG: REPLACE IG1 RELAY 

Fig 1: Inspecting IG1 Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO NEXT STEP 

1. Disconnect the P9 master switch connector.
2. Measure the voltage and resistance of the wire harness side connector.

   Standard voltage 

   WIRE HARNESS STANDARD VOLTAGE SPECIFICATIONS
   
   

   Tester Connection	Condition	Specified Condition
   P9-10 (B) - Body ground	Always	11 to 14 V
   P9-20 (IG) - Body ground	Ignition switch OFF	Below 1 V
   P9-20 (IG) - Body ground	Ignition switch ON	11 to 14 V

   Standard resistance 

   WIRE HARNESS STANDARD VOLTAGE SPECIFICATIONS
   
   

   Tester Connection	Specified Condition
   P9-2 (GND) - Body ground	Below 1 kΩ

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

Fig 2: Identifying P9 Master Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY