Steering Lock Motor Drive Power Circuit

Steering Lock Motor Drive Power Circuit

DESCRIPTION
The main body ECU supplies the power to activate the motor of the steering lock actuator.

The diagnosis information of the steering lock ECU is transmitted to the tester via the certification ECU as the steering lock ECU is not connected to the CAN communication system.

WIRING DIAGRAM:

INSPECTION PROCEDURE

HINT:
When the engine switch is off, the main body ECU may occasionally go into a non-active state called sleep mode. Therefore, before proceeding with the inspection, it is necessary to perform the following step to wake up the ECU:
With the engine switch off, open the driver door. Then (with the engine switch still off) open and close any door several times at 1.5 second intervals.

NOTICE: If the steering lock actuator (steering lock ECU) is replaced, with the engine switch off and the shift lever on P, open and close the driver side door to record the current lock position into the steering lock ECU. If this is not performed, the engine may not start.

Step 1(Part 1):

Steps 1(Part 2)-3:

Step 4:

Steps 5-6(Part 1):

Step 6(Part 2):