Entry And Start System Room Oscillator Does Not Recognize Key

Body Electrical. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Door Lock. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DOOR CONTROL TRANSMITTER (OPERATION)

READ VALUE USING INTELLIGENT TESTER (INDOOR ELECTRICAL KEY OSCILLATOR)

CHECK WIRE HARNESS (INDOOR ELECTRICAL KEY OSCILLATOR - CERTIFICATION ECU)

CHECK INDOOR ELECTRICAL KEY OSCILLATOR (OPERATION)

ENTRY AND START SYSTEM - Room Oscillator does not Recognize Key


DESCRIPTION

If the entry ignition function does not operate, place the key in the vehicle and check whether the engine control system starts. If the engine control system starts (the ID code box outputs a starts permission signal to the engine control system and the engine control system starts), it can be assumed that only the entry ignition system is malfunctioning.
The certification ECU uses the indoor electrical key oscillator to send a request signal to the key when: 1) the driver side door is opened and closed, or 2) the ignition switch is turned from on (ACC) to off or off to on (ACC). Then, the key transmits its ID code to the door control receiver. The ID code, which is then sent to the certification ECU, is verified by the certification ECU and the verification result is sent to the ID code box. Turning the ignition switch from on (ACC) to off stops the engine control system.
The ID code box and the certification ECU communicate encryption codes to each other using the LIN communication line. When the return code from the certification ECU matches the ID code in the memory, the ID code box sends an engine control system start permission signal to the ECM. With the clutch pedal*1 (brake pedal*2) depressed, pressing the engine switch starts the engine. With the engine running, pressing the engine switch stops engine.

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Door Lock.Power Door Lock Control System.Entry And Start System Room Oscillator Does Not Recognize Key


INSPECTION PROCEDURE

1.CHECK DOOR CONTROL TRANSMITTER (OPERATION)

  1. Temporarily replace the door control transmitter with a new or normally functioning one (RAV4_ACA30 RM000001VRW002X.html).

  1. Check that the wireless door lock and unlock functions operate normally.

    OK:
    Wireless door lock and unlock functions operate normally.


NG
END (DOOR CONTROL TRANSMITTER IS DEFECTIVE)
OK


2.READ VALUE USING INTELLIGENT TESTER (INDOOR ELECTRICAL KEY OSCILLATOR)

  1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the indoor electrical key oscillator (front, rear) operates.

    Certification ECU:
    Item
    		Test Details
    		Diagnostic Note
    Fr-Seat Inside Transmitter
    		Indoor electrical key oscillator (front) ON / OFF
    		-
    Inside Trunk/Backdoor Transmitter
    		Indoor electrical key oscillator (rear) ON / OFF
    		-
    OK:
    When key is brought close to indoor electrical key oscillator, oscillator is turned OFF and indicator on key illuminates.


OK
REPLACE ECU AGGREGATION BOX (CERTIFICATION ECU)
NG


3.CHECK WIRE HARNESS (INDOOR ELECTRICAL KEY OSCILLATOR - CERTIFICATION ECU)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Door Lock.Power Door Lock Control System.Entry And Start System Room Oscillator Does Not Recognize Key

  1. Disconnect the L14*1 and K23*2 oscillator connectors.

  1. Disconnect the E63 ECU connector.

  1. Measure the resistance of the wire harness side connectors.

    HINT:
    *1: for Front
    *2: for Rear

    Standard resistance:
    for Front:
    Tester Connection
    		Specified Condition
    L14-1 (CLG3) - E63-11 (CLG5)
    		Below 1 Ω
    L14-3 (CLGB) - E63-12 (CG5B)
    L14-1 (CLG3) or E63-11 (CLG5) - Body ground
    		10 kΩ or higher
    L14-3 (CLGB) or E63-12 (CG5B) - Body ground
    for Rear:
    Tester Connection
    		Specified Condition
    K23-1 (CLG6) - E63-15 (CLG7)
    		Below 1 Ω
    K23-3 (CLGB) - E63-16 (CG7B)
    K23-1 (CLG6) or E63-15 (CLG7) - Body ground
    		10 kΩ or higher
    K23-3 (CLGB) or E63-16 (CG7B) - Body ground


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


4.CHECK INDOOR ELECTRICAL KEY OSCILLATOR (OPERATION)

  1. Carry the key into the vehicle.

  1. Temporarily replace the indoor electrical key oscillator with a new or normally functioning one.

  1. Depress the clutch pedal*1 (brake pedal*2) and check that the engine switch indicator illuminates in green.

    HINT:
    *1: for Manual Transaxle
    *2: except Manual Transaxle
    OK:
    Engine switch indicator illuminates in green.


OK
END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)
NG

REPLACE ECU AGGREGATION BOX (CERTIFICATION ECU)