Entry And Start System (For Entry Function) Front Passenger Side 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 HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - CERTIFICATION ECU)

CHECK CERTIFICATION ECU (OUTPUT SIGNAL)

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER SIDE)

CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (OPERATION)

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. Bring the electrical key transmitter approximately 0.3 m (0.984 ft.) from the door outside handle (for front passenger side) and perform a front passenger side door entry lock and unlock operation check (LandCruiser RM000002U9W094X.html).
   

   NOTICE:

   If the key is brought within 0.2 m (0.656 ft.) of the door handle, communication is not possible.

   HINT:

   1. When the electrical key transmitter is brought near the front passenger side door outside handle, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      
   2. If the operation check is normal, 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
   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 LHD
      
   2. *2: for RHD
      

   OK:

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

1. Disconnect the N1*1 or O1*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
   N1-3 (ANT2) - G38-6 (CG2B)	Always	Below 1 Ω
   N1-6 (ANT1) - G38-5 (CLG2)	Always	Below 1 Ω
   N1-5 (B) - G38-33 (POS2)	Always	Below 1 Ω
   N1-2 (GND) - Body ground	Always	Below 1 Ω
   G38-6 (CG2B) - Body ground	Always	10 kΩ or higher
   G38-5 (CLG2) - Body ground	Always	10 kΩ or higher
   G38-33 (POS2) - Body ground	Always	10 kΩ or higher

   for RHD:

   Tester Connection	Condition	Specified Condition
   O1-3 (ANT2) - G38-6 (CG2B)	Always	Below 1 Ω
   O1-6 (ANT1) - G38-5 (CLG2)	Always	Below 1 Ω
   O1-5 (B) - G38-33 (POS2)	Always	Below 1 Ω
   O1-2 (GND) - Body ground	Always	Below 1 Ω
   G38-6 (CG2B) - Body ground	Always	10 kΩ or higher
   G38-5 (CLG2) - Body ground	Always	10 kΩ or higher
   G38-33 (POS2) - Body ground	Always	10 kΩ or higher

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

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

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

   Standard Voltage:

   for LHD:

   Tester Connection	Switch Condition	Specified Condition
   N1-3 (ANT2) - N1-6 (ANT1)	Engine switch off, all doors closed, key not in cabin and transmitter lock switch not pressed → pressed	No pulse generation → Pulse generation
   N1-5 (B) - Body ground	Engine switch off → on (IG)	9 to 14 V → Below 2 V

   for RHD:

   Tester Connection	Switch Condition	Specified Condition
   O1-3 (ANT2) - O1-6 (ANT1)	Engine switch off, all doors closed, key not in cabin and transmitter lock switch not pressed → pressed	No pulse generation → Pulse generation
   O1-5 (B) - Body ground	Engine switch off → on (IG)	9 to 14 V → Below 2 V

   Text in Illustration

   *A	for LHD
   *B	for RHD
   *a	Front view of wire harness connector (to Front Door Outside Handle Assembly [for Front Passenger Side])

1. Temporarily replace the front door outside handle assembly (for front passenger side) with a new or normally functioning one (LandCruiser RM0000011QF0H5X.html).
   

1. Check that the entry functions operate normally (LandCruiser RM000002U9W094X.html).
   

   OK:

   Entry functions operate normally.