Entry And Start System (For Entry Function) Driver Side Door Entry Lock Function Does Not Operate

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK POWER DOOR LOCK OPERATION

READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)

READ VALUE USING INTELLIGENT TESTER (LOCK SENSOR)

CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - CERTIFICATION ECU)

CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (LOCK SENSOR)

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. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output (LandCruiser RM000002BZF06SX.html).
   
5. 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.
   
6. 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. 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
   FR Door Lock Pos*1	Front RH side door lock position switch signal / UNLOCK or LOCK	UNLOCK: Front RH side door unlocked LOCK: Front RH side door locked	-
   FL Door Lock Pos*2	Front LH side door lock position switch signal / UNLOCK or LOCK	UNLOCK: Front LH side door unlocked LOCK: Front LH side door locked	-

   1. *1: for RHD
      
   2. *2: for LHD
      

   OK:

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

1. Using the intelligent tester, read the Data List (LandCruiser RM000000XUF0BSX.html).
   
   

   Entry&Start

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D-Door Trigger Switch	Driver side door lock sensor / ON or OFF	ON: Driver side door lock sensor touched OFF: Driver side door lock sensor not touched	-

   OK:

   "ON" (lock sensor is touched) and "OFF" (lock sensor is not touched) appear on the screen.
   

1. Disconnect the O1*1 or N1*2 handle connector.
   

   1. *1: for LHD
      
   2. *2: for RHD
      

2. Disconnect the G38 ECU connector.
   

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

   Standard Resistance:

   for LHD:

   Tester Connection	Condition	Specified Condition
   O1-1 (TRG+) - G38-18 (TSW1)	Always	Below 1 Ω
   G38-18 (TSW1) - Body ground	Always	10 kΩ or higher
   G38-15 (E) - Body ground	Always	Below 1 Ω

   for RHD:

   Tester Connection	Condition	Specified Condition
   N1-1 (TRG+) - G38-18 (TSW1)	Always	Below 1 Ω
   G38-18 (TSW1) - Body ground	Always	10 kΩ or higher
   G38-15 (E) - Body ground	Always	Below 1 Ω

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

   
   
   
   
   

   Text in Illustration

   *a

   Component with harness connected (Certification ECU)

   -

   -

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   G38-18 (TSW1) - G38-15 (E)	Engine switch off, all doors closed and lock sensor (for driver side) off → on	Pulse generation → Below 2 V