STEERING LOCK SYSTEM > Steering Lock Motor Drive Power Circuit
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DESCRIPTION
The main body ECU supplies the power to activate the motor of the steering lock actuator assembly.
The diagnosis information of the steering lock ECU is transmitted to the intelligent tester via the certification ECU (smart key ECU assembly) 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 steps 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 assembly (steering lock ECU) is replaced, with the engine switch off and the shift lever in 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.
1.CHECK VEHICLE CONDITION
a. Check the problem symptom of the steering lock system.
Result
Result Proceed to
Steering lock cannot be released A
Steering lock cannot lock B
B Go to step 5
A
2.READ VALUE USING INTELLIGENT TESTER (LOCK/UNLOCK RECEIVE)
a. Use the Data List to check if the steering lock command is functioning properly.
Entry&Start
Tester Display Measurement Item/Range Normal Condition
Diagnostic
Note
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