Rear Door RH Entry Lock And Unlock Functions Do Not Operate: Procedure

1. Check that the manual door lock and unlock function operates normally.

   OK

   Manual door lock and unlock function operates normally.

NG → GO TO POWER DOOR LOCK CONTROL SYSTEM 

OK: Go to next step 

1. Check the DATA LIST for proper functioning of the door lock position switch.
   MULTIPLEX NETWORK DOOR ECU REAR RH:
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Door Unlock Detection Switch	Door unlock detection switch / ON or OFF	ON: Door is unlocked OFF: Door is locked	-

   OK

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

NG → GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Rear Door RH LOCK / UNLOCK Functions do not Operate) 

OK: Go to next step 

1. Select the ACTIVE TEST, use the Techstream to generate a control command, and then check that the oscillator operates.
   CERTIFICATION ECU:
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Pr-Seat Outside Transmitter	Rear RH side transmitter	ON/OFF	-

   OK

   When key is brought close to door oscillator that is OFF, indicator light on key illuminates.

OK → REPLACE CERTIFICATION ECU ASSEMBLY 

NG: Go to next step 

Fig 1: Identifying U33 ECU Connector And R2 Oscillator Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the U33 ECU connector.
2. Disconnect the r2 oscillator connector.
3. Measure the resistance of the wire harness side connector.

   Standard resistance

   Tester Connection	Specified Condition
   U33-10 (CLG4) - r2-10 (CLG)	Below 1 Ω
   U33-11 (CG4B) - r2-5 (CLGB)	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

Fig 2: Identifying Antenna R1 Connector & Oscillator R2 Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the r2 oscillator connector.
2. Disconnect the r1 antenna connector.
3. Measure the resistance and voltage of the wire harness side connector.

   Standard resistance

   Tester Connection	Specified Condition
   r2-2 (SGT) - r1-6 (SGT)	Below 1 Ω
   r2-3 (ANT1) - r1-5 (ANT1)	Below 1 Ω
   r2-8 (ANT2) - r1-2 (ANT2)	Below 1 Ω
   r2-9 (TRG-) - r1-1 (TRG-)	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

Fig 3: Identifying R2 Oscillator And O2 ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the r2 oscillator connector.
2. Disconnect the O2 ECU connector.
3. Measure the resistance of the wire harness side connector.

   Standard resistance

   Tester Connection	Specified Condition
   r2-1 (+B) - O2-7 (OSCB)	Below 1 Ω
   r2-7 (GND) - O2-20 (OSCE)	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

Fig 4: Identifying R1 Antenna Connector And O2 ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the r1 antenna connector.
2. Disconnect the O2 ECU connector.
3. Measure the resistance of the wire harness side connector.

   Standard resistance

   Tester Connection	Specified Condition
   r1-3 (TRG+) - O2-18 (TRG+)	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

1. After replacing the electrical key antenna rear RH with a normal one, check that the entry lock and unlock functions operate normally.

   OK

   Entry lock and unlock functions operate normally.

OK → END (ELECTRICAL KEY ANTENNA REAR RH IS DEFECTIVE) 

NG: Go to next step 

1. After replacing the door electrical key oscillator rear RH with a normal one, check that the entry lock and unlock functions operate normally.

   OK

   Entry lock and unlock functions operate normally.

NG → REPLACE CERTIFICATION ECU ASSEMBLY 

OK → END (DOOR ELECTRICAL KEY OSCILLATOR REAR RH IS DEFECTIVE)