Multi-display Power Source Circuit: Procedure

1. Remove the RADIO NO. 2, TV and P-IG fuses from the passenger side junction block.
2. Remove the AM1 fuse from the driver side junction block.
3. Measure the resistance of the fuses.

   Standard resistance

   Below 1 Ω

NG → REPLACE FUSE 

OK: Go to next step 

1. Remove the ACC and IG1 relay from the passenger side junction block.
   Fig 1: Identifying Relay Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the relays.

   Standard resistance

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

NG → REPLACE RELAY 

OK: Go to next step 

1. Disconnect the M5 panel connector.
   Fig 2: Identifying Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance and voltage of the wire harness side connector.

   Standard resistance

   Standard voltage 

   Tester Connector	Specified Condition
   M5-11 (GND) - Body ground	Below 1 Ω

   Tester Connector	Condition	Specified Condition
   M5-10 (+B1) - Body ground	Always	10 to 14 V
   M5-20 (ACC) - Body ground	Ignition switch ACC	10 to 14 V
   M5-19 (IG) - Body ground	Ignition switch ON	10 to 14 V

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

1. Remove the instrument cluster finish panel center.
   Fig 3: Identifying Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the panel.

   Standard resistance

   Tester Connection	Specified Condition
   M5-10 (+B1) - A-12 (+B1)	Below 1 Ω
   M5-20 (ACC) - A-11 (ACC)	Below 1 Ω
   M5-19 (IG) - A-10 (IG)	Below 1 Ω
   M5-11 (GND) - A-3 (GND1)	Below 1 Ω

NG → REPAIR OR REPLACE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY CENTER 

OK → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE OR DIAGNOSTIC TROUBLE CODE CHART