Inspection Procedure

1. Disconnect the M6 panel connector.
2. Disconnect the N3 ECU connector.
   Fig 1: Identifying N3 ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   M6-9 (IVO+) - N3-12 (VOI+)	Below 1 Ω
   M6-10 (IVO-) - N3-13 (VOI-)	Below 1 Ω
   M6-9 (IVO+) - Body ground	10 kΩ or higher
   M6-10 (IVO-) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

1. Remove the instrument cluster finish panel center.
   Fig 2: Identifying Instrument Cluster Finish Panel Center Connector Terminals

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

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   M6-9 (IVO+) - B-21 (IVO+)	Below 1 Ω
   M6-10 (IVO-) - B-22 (IVO-)	Below 1 Ω
   M6-8 (SLD) - B-20 (SLD)	Below 1 Ω
   M6-9 (IVO+) - Body ground	10 kΩ or higher
   M6-10 (IVO) - Body ground	10 kΩ or higher
   M6-8 (SLD) - Body ground	10 kΩ or higher

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