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. Read the DATA LIST according to the displays on the 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. Disconnect the 3I J/B connector.
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
   3I-2 - P6-35 (IG2D)	Below 1 Ω
   3I-3 - Body ground	Below 1 Ω

   Fig 2: Disconnecting 3I J/B Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

1. Disconnect the 3I and 3K J/B connectors.
2. Measure the resistance of the J/B connectors.

   Standard: 

   TESTER CONNECTION AND SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   3K-1 - 3I-4	When battery voltage is not applied to terminals 3I-2 and 3I-3	10 kΩ or higher
   3K-1 - 3I-4	When battery voltage is applied to terminals 3I-2 and 3I-3	Below 1 Ω

   Fig 3: Tester Connection And Specified Condition Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   REPLACE POWER SOURCE CONTROL ECU