Power Source Circuit: Procedure

1. Disconnect the E51 connector from the steering lock actuator assembly.
   Fig 1: Identifying E51 Connector Terminals GND And SGND

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2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester connection (Symbols)	Condition	Specified condition
   E51-1 (GND) - Body ground	Always	Below 1 Ω
   E51-2 (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 E51 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage

   Tester connection (Symbols)	Condition	Specified condition
   E51-7 (B) - E51-1 (GND)	Always	10 to 14 V
   E51-7 (B) - E51-2 (SGND)	Always	10 to 14 V

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

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