Entry And Start System (For Start Function) Power Source Mode Does Not Change To On (Acc)

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - COWL SIDE JUNCTION BLOCK LH)

INSPECT COWL SIDE JUNCTION BLOCK LH (ACC RELAY)

INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

ENTRY AND START SYSTEM (for Start Function) - Power Source Mode does not Change to ON (ACC)


DESCRIPTION

If the engine switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode.
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.

Related Data List and Active Test Items
Problem Symptom
Data List Item
Active Test Item
Power source mode does not change to on (ACC) but does change to on (IG)
Power Source Control
  1. Power Supply Condition
  2. ACC Relay Monitor
-

WIRING DIAGRAM

Refer to "System Diagram" (Click here)

INSPECTION PROCEDURE

NOTICE:
  1. When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus:
    Body Electrical / Entry&Start. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
  2. The entry and start system (for Start Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (Click here). Troubleshoot the entry and start system (for Start Function) after confirming that the communication systems are functioning properly.
  3. Make sure that no DTCs are output. If any DTCs are output, proceed to the Diagnostic Trouble Code Chart (Click here).
  4. If the entry and start system is disabled through the customize function, enable the system before performing troubleshooting (Click here).
  5. Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Start Function) precaution (Click here).
  6. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
  7. After completing repairs, confirm that the problem does not occur.
1.CHECK FOR DTC

  1. Using the GTS, check for DTCs.

    Result
    Result
    		Proceed to
    DTCs are not output
    		A
    Entry and start system (for Start Function) DTCs are output
    		B


B
GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)
A


2.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - COWL SIDE JUNCTION BLOCK LH)

  1. Disconnect the E130 certification ECU (smart key ECU assembly) connector.

  1. Disconnect the 2J cowl side junction block LH connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E130-9 (ACCD) - 2J-18
    		Always
    		Below 1 Ω
    2J-1 - Body ground
    E130-9 (ACCD) or 2J-18 - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT COWL SIDE JUNCTION BLOCK LH (ACC RELAY)

  1. Remove the cowl side junction block LH.

    1. for LHD: Click here.
    2. for RHD: Click here.


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change To On (Acc)


    Text in Illustration
    *a
    		Component without harness connected
    (Cowl Side Junction Block LH)
    		-
    		-

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    2G-1 - 2I-51
    		Battery voltage not applied to terminals 2J-18 and 2J-1
    		10 kΩ or higher
    Battery voltage applied to terminals 2J-18 and 2J-1
    		Below 1 Ω
Result
Result
Proceed to
OK
A
NG
for LHD
B
for RHD
C


B
REPLACE COWL SIDE JUNCTION BLOCK LH (Click here)

C
REPLACE COWL SIDE JUNCTION BLOCK LH (Click here)
A


4.INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  1. Reconnect the E130 certification ECU (smart key ECU assembly) connector.

  1. Install the cowl side junction block LH.

    1. for LHD: Click here.
    2. for RHD: Click here.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Power Source Mode Does Not Change To On (Acc)

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E130-9 (ACCD) - Body ground
    		Engine switch off → Engine switch on (ACC)
    		1 V or less → 8.5 V or higher
    Text in Illustration
    *a
    		Component with harness connected
    (Certification ECU (Smart Key ECU Assembly))


NG
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
OK

CHECK USE SIMULATION METHOD TO CHECK (Click here)