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Home >> Lexus >> 2012 >> ES 350 V6-3.5L (2GR-FE) >> Repair and Diagnosis >> Steering and Suspension >> Steering >> Steering Column >> Testing and Inspection >> Component Tests and General Diagnostics >> Steering Lock System >> Power Source Circuit
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Power Source Circuit





STEERING COLUMN: STEERING LOCK SYSTEM: Power Source Circuit
- Power Source Circuit

DESCRIPTION

This circuit supplies voltage from the battery to terminal B of the steering lock ECU. This circuit is used as power source for the steering lock CPU, motor, communication, and peripheral circuits.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BODY GROUND)

(a) Disconnect the E78 connector from the steering lock actuator assembly.





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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BATTERY)

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





Standard voltage:





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

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