Steering Lock System Steering Lock Motor Drive Power Circuit

Steering. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Steering Column. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC (CERTIFICATION ECU)

READ VALUE USING INTELLIGENT TESTER (CERTIFICATION ECU)

CHECK STEERING LOCK ACTUATOR

CHECK STEERING LOCK ACTUATOR

READ VALUE USING INTELLIGENT TESTER (CERTIFICATION ECU)

CHECK OPERATION OF ID CODE BOX

READ VALUE USING INTELLIGENT TESTER (CERTIFICATION ECU)

CHECK OPERATION OF ID CODE BOX

CHECK OPERATION OF STEERING LOCK ACTUATOR

STEERING LOCK SYSTEM - Steering Lock Motor Drive Power Circuit


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 tester via the certification ECU as the steering lock ECU is not connected to the CAN communication system.

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Steering Column.Steering System.Steering Lock System Steering Lock Motor Drive Power Circuit


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:
Before starting the inspection, 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.
1.CHECK DTC (CERTIFICATION ECU)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG) and press the intelligent tester main switch ON.

  1. Read the DTCs of the certification ECU by following the prompts displayed on the intelligent tester.

    OK:
    DTC is not output.


NG
REFER TO DTC
OK


2.READ VALUE USING INTELLIGENT TESTER (CERTIFICATION ECU)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG) and press the intelligent tester main switch ON.

  1. Select the item "Lock/Unlock Receive" in the Data List within 10 seconds of starting the engine and read the value displayed on the intelligent tester.

    Certification ECU
    Item
    		Measurement Item / Range (Display)
    		Normal Condition
    		Diagnostic Note
    Lock/Unlock Receive
    		Steering lock command reception record / YES or NO
    		YES: Steering lock/unlock signal received
    NO: Steering lock/unlock signal not received
    		-
    OK:
    YES is displayed on the tester screen.


NG
Go to step 5
OK


3.CHECK STEERING LOCK ACTUATOR
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Steering Column.Steering System.Steering Lock System Steering Lock Motor Drive Power Circuit

  1. Measure the resistance and voltage of the steering lock actuator.

    Standard resistance:
    Tester Connection
    		Specified Condition
    E6-1 (GND) - Body ground
    		Below 1 Ω
    E6-2 (SGND) - Body ground
    		Below 1 Ω
    Standard voltage:
    Tester Connection
    		Specified Condition
    E6-7 (B) - E6-1 (GND)
    		11 to 14 V
    E6-7 (B) - E6-2 (SGND)
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


4.CHECK STEERING LOCK ACTUATOR
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Steering Column.Steering System.Steering Lock System Steering Lock Motor Drive Power Circuit

  1. Immediately after turning the engine switch on (IG), inspect the voltage between terminals E6-3 (IGE) and E6-2 (SGND) of the steering lock actuator.

    Result
    Result
    		Proceed to
    Immediately after turning engine switch on (IG), condition that measurement is 1 V or less occurs
    		A
    Measurement is 11 to 14 V, and measurement never becomes 1 V or less
    		B


B
REPAIR OR REPLACE HARNESS AND CONNECTOR
A

REPLACE STEERING LOCK ACTUATOR ASSEMBLY

5.READ VALUE USING INTELLIGENT TESTER (CERTIFICATION ECU)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG) and press the intelligent tester main switch ON.

  1. Select the item "S Code Check" in the Data List and read the value displayed on the intelligent tester.

    Certification ECU
    Item
    		Measurement Item / Range (Display)
    		Normal Condition
    		Diagnostic Note
    S Code Check
    		S code match record / NG or OK
    		NG: S code not matched
    OK: S code matched
    		-
    OK:
    YES is displayed on the tester screen.


OK
Go to step 7
NG


6.CHECK OPERATION OF ID CODE BOX

  1. Replace the ID code box with a normally functioning or new one.

  1. Reconfirm the item "S Code Check" in the Data List and read the value displayed on the intelligent tester.

    Certification ECU
    Item
    		Measurement Item / Range (Display)
    		Normal Condition
    		Diagnostic Note
    S Code Check
    		S code match record / NG or OK
    		NG: S code not matched
    OK: S code matched
    		-
    OK:
    OK is displayed on the tester screen.


OK
REPLACE ID CODE BOX
NG

REPLACE CERTIFICATION ECU

7.READ VALUE USING INTELLIGENT TESTER (CERTIFICATION ECU)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG) and press the intelligent tester main switch ON.

  1. Select the item "L Code Check" in the Data List and read the value displayed on the intelligent tester.

    Certification ECU
    Item
    		Measurement Item / Range (Display)
    		Normal Condition
    		Diagnostic Note
    L Code Check
    		L code match record / NG or OK
    		NG: L code not matched
    OK: L code matched
    		-
    OK:
    OK is displayed on the tester screen.


OK
Go to step 9
NG


8.CHECK OPERATION OF ID CODE BOX

  1. Replace the ID code box with a normally functioning or new one.

  1. Reconfirm the item "L Code Check" in the Data List and read the value displayed on the intelligent tester.

    Certification ECU
    Item
    		Measurement Item / Range (Display)
    		Normal Condition
    		Diagnostic Note
    L Code Check
    		L code match record / NG or OK
    		NG: L code not matched
    OK: L code matched
    		-
    OK:
    OK is displayed on the tester screen.


OK
REPLACE ID CODE BOX
NG


9.CHECK OPERATION OF STEERING LOCK ACTUATOR

  1. Replace the steering lock actuator assembly with a normally functioning or new one.

  1. Turn the engine switch on (IG).

  1. Check the steering lock.

    OK:
    Steering lock is released and engine starts.


OK
REPLACE STEERING LOCK ACTUATOR ASSEMBLY
NG

REPLACE CERTIFICATION ECU