Unlock Position Sensor Signal Circuit: Procedure

INSPECT STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)

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

Fig 1: Identifying Steering Lock Actuator Connector Terminals

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Standard Voltage

Tester Connection	Condition	Specified Condition
J29-4 (SLP1) - J29-2 (SGND)	Turn the engine switch off Turn the engine switch on (ACC or IG)	Below 1 V

NG → See step 2

OK → See step 4

CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - POWER SOURCE CONTROL ECU)

Disconnect the J29 connector from the steering lock actuator assembly.

Fig 2: Identifying Steering Lock Actuator And Power Source Control ECU Connector Terminals
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Disconnect the J55 connector from the power source control ECU.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
J29-4 (SLP1) - J55-26 (SLP)	Always	Below 1 Ω
J29-4 (SLP1) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK → See step 3

CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for start). Refer to HOW TO PROCEED WITH TROUBLESHOOTING
REPLACE STEERING LOCK ACTUATOR ASSEMBLY. Refer to DISASSEMBLY