Inspection Procedure

1. Remove the AM1 and D-IG fuses from the driver side J/B.
2. Remove the D/C CUT fuse from the engine room No. 1 R/B.
3. Remove the MPX-B2 fuse from the passenger side J/B.
4. Measure the resistance of the fuses.

Standard: Below 1 Ω 

NG: REPLACE FUSE 

OK: GO TO NEXT STEP 

1. Remove the relay from the driver side J/B.
2. Measure the resistance of the relay.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   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)

   Fig 1: Identifying Relay Test terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE RELAY 

OK: GO TO NEXT STEP 

1. Disconnect C8 meter connector.
2. Measure the voltage and resistance of the wire harness side connector.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   C8-12 (ES) - Body ground	Below 1 Ω
   C8-13 (B) - Body ground	10 to 14 V

   Fig 2: Identifying C8 Meter Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: EPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: GO TO NEXT STEP 

1. Remove the IG1 relay from the driver side J/B.
2. Disconnect the C8 meter connector.
3. Measure the voltage and resistance of the wire harness connectors.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   J/B IG1 relay terminal 3 - C8-1 (IG)+	Always	Below 1 Ω
   J/B IG1 relay terminal 2 - Body ground	Always	Below 1 Ω
   J/B IG1 relay terminal 1 - Body ground	Ignition switch ON	10 to 14 V
   J/B IG1 relay terminal 5 - Body ground	Always	10 to 14 V

   Fig 3: Identifying IG1 Relay And C8 Meter Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE COMBINATION METER ASSY (See  COMBINATION METER ASSY  )