Power Source Circuit: Procedure

1. Disconnect the E78 connector from the steering lock actuator assembly.
   Fig 1: Identifying Steering Lock Actuator Assembly Connector Terminal E78

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E78-1 (GND) - Body ground	Always	Below 1 Ω
   E78-2 (SGND) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Measure the voltage according to the value(s) in the table below.
   Fig 2: Identifying Steering Lock Actuator Assembly Connector Terminal E78

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage

   Tester Connection	Condition	Specified Condition
   E78-7 (B) - E78-1 (GND)	Always	10 to 14 V
   E78-7 (B) - E78-2 (SGND)	Always	10 to 14 V

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BATTERY)