Inspection Procedure

1. Disconnect the M7 connector.
2. Measure the voltage and resistance according to the value (s) in the table below.

   Voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   M7-9 (CPUB) - Body ground	Always	10 to 14 V
   M7-10 (BDR) - Body ground	Always	10 to 14 V
   M7-20 (SIG) - Body ground	Engine switch on (IG)	10 to 14 V

   Fig 1: Identifying M7 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   M7-2 (GND) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE