Entry And Start System (For Entry Function) Back Door Entry Lock And Unlock Functions Do Not Operate

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK POWER DOOR LOCK OPERATION

CHECK WAVE ENVIRONMENT

READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

CHECK ELECTRICAL KEY ANTENNA IN KEY DIAGNOSTIC MODE

CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY ANTENNA - CERTIFICATION ECU)

INSPECT ELECTRICAL KEY ANTENNA (OUTSIDE LUGGAGE)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. The entry and start system (for Entry 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 (LandCruiser RM000000XU70G9X.html). Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.
   
2. When using the intelligent tester with the engine switch off to troubleshoot: Connect the intelligent tester to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the intelligent tester and vehicle begins.
   
3. Check that there are no electrical key transmitters in the vehicle.
   
4. When checking the entry lock operation multiple times, the lock operation may be limited to 2 consecutive operations depending on the settings. In order to perform the entry lock operation 3 or more times, an unlock operation must be performed once (any type of unlock operation is sufficient). However, only consecutive entry lock operations are limited. Using the wireless lock or other types of lock operations, it is possible to perform consecutive lock operations without this limitation.
   
5. Before replacing the certification ECU, refer to the Service Bulletin.
   

1. When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation (LandCruiser RM000002T6K07VX.html).
   

   OK:

   Door locks operate normally.
   

1. Bring the electrical key transmitter approximately 0.3 m (0.984 ft.) from the electrical key antenna (outside luggage) and perform an entry back door unlock function check (LandCruiser RM000002U9W094X.html).
   

   NOTICE:

   If the key is brought within 0.2 m (0.656 ft.) of the rear bumper, communication may not possible.

   HINT:

   If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

   OK:

   Entry function operates normally.
   

1. Connect the intelligent tester to the DLC3.
   

2. Turn the engine switch on (IG).
   

3. Turn the intelligent tester on.
   

4. Enter the following menus: Body / Main Body / Data List.
   

5. Read the Data List according to the display on the intelligent tester.
   
   

   Main Body

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Back Door Lock Pos SW	Back door lock position switch status / ON or OFF	ON: Back door unlocked OFF: Back door locked	-

   OK:

   On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.
   

1. Check the following antenna in the key diagnostic mode (LandCruiser RM000000XUC0DVX.html).
   

   1. Check the electrical key antenna (outside luggage).
      When the electrical key transmitter is brought within 0.7 to 1.0 m (2.30 to 3.28 ft.) of the electrical key antenna (outside luggage), check that the wireless door lock buzzer sounds.
      

      OK:

      Wireless door lock buzzer sounds.
      

1. Disconnect the R16 antenna connector.
   

2. Disconnect the G39 ECU connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   R16-1 (CLG5) - G39-19 (CLG8)	Always	Below 1 Ω
   R16-2 (CLGB) - G39-20 (CG8B)	Always	Below 1 Ω
   G39-19 (CLG8) - Body ground	Always	10 kΩ or higher
   G39-20 (CG8B) - Body ground	Always	10 kΩ or higher

1. Remove the electrical key antenna (outside luggage) (LandCruiser RM000002QFS049X.html).
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   1 (CLG5) - 2 (CLGB)	Always	Below 1 Ω