Inspection Procedure

1. Connect the hand-held tester (with CAN VIM) to the DLC3.
2. Turn the power switch ON (IG) and press the hand-held tester main switch ON.
3. Select the items below in the DATA LIST and read the displays on the hand-held tester.

   Power source control ECU: 

   Fig 1: Power Source Control ECU - Data List

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: ON (power switch ON (IG)) appears on the screen. 

1. NG: Go to step 2 
2. OK: GO TO NEXT STEP 

   REPLACE POWER SOURCE CONTROL ECU 

1. NG: REPLACE RELAY 
2. OK: GO TO NEXT STEP 

1. Disconnect the 1J and 1E instrument panel J/B connectors.
2. Disconnect the P6 ECU connector.
3. Measure the resistance of the wire harness side connectors.

   Standard: 

   TESTER CONNECTION AND SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   1J-3 - P6-34 (IG1D)	Below 1 Ω
   1J-3 or P6-34 (IG1D) - Body ground	10 kΩ or higher
   1E-17 - Body ground	Below 1 Ω

   Fig 2: Disconnecting 1J And 1E Instrument Panel J/B Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
2. OK: GO TO NEXT STEP 

1. Remove the IG1 relay from the instrument panel J/B.
2. Disconnect the 1J and 1E instrument panel J/B connector.
3. Measure the resistance of the instrument panel J/B.

   Standard: 

   TESTER CONNECTION AND SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   1J-3 - Instrument panel J/B IG1 relay terminal 2	Below 1 Ω
   1E-17 - Instrument panel J/B IG1 relay terminal 1	Below 1 Ω

   Fig 3: Disconnecting 1J And 1E Instrument Panel J/B Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY 
2. OK: GO TO NEXT STEP 

   REPLACE POWER SOURCE CONTROL ECU