Inspection Procedure

1. Disconnect the DA and DD J/B connectors.
2. Disconnect the K73 ECU connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   DD-2 - K73-11 (ACCD)	Below 1 Ω
   DA-5 - Body ground	Below 1 Ω
   DD-7 - Body ground	Below 1 Ω

Fig 1: Identifying DA And DD J/B Connectors And K73 ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

1. Disconnect the DD and DM J/B connectors.
2. Measure the resistance of the J/B connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   DM-1 - DD-27 or DD-26	When battery voltage is not applied to terminals DD-2 and DD-7 or DA-5	10 kΩ or higher
   DM-1 - DD-27 or DD-26	When battery voltage is applied to terminals DM-1 and DD-7 or DA-5	Below 1 Ω

Fig 2: Identifying DD And DM J/B Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE COWL SIDE J/B RH 

OK: REPLACE POWER SOURCE CONTROL ECU