Unlock Position Sensor Signal Circuit

STEERING COLUMN: STEERING LOCK SYSTEM: Unlock Position Sensor Signal Circuit
- Unlock Position Sensor Signal Circuit

DESCRIPTION

The unlock position sensor is one of the components in the steering lock actuator. The sensor switch contact closes when the steering lock is released. The steering lock release signal is then sent to the main body ECU. Receiving the signal, the ECU permits engine start. (This prevents the engine from being started with the steering locked.)

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)

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





Standard voltage:





OK -- CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START FUNCTION
NG -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - MAIN BODY ECU)

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





(b) Disconnect the E61 connector from the main body ECU.

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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

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