Rear Door LH Entry Lock Function does not Operate: Procedure

1. When the master switch assembly door control switch is operated, check that the locked doors unlock.

   OK

   Door locks operate normally.

NG → See step   8 

OK: Go to next step 

1. Using the Techstream, read the Data List.
   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Dr-Door Trigger Switch	Driver side rear door outside handle lock switch / ON or OFF	ON: Entry lock switch pushed OFF: Entry lock switch not pushed	-

   OK

   On Techstream screen, item changes between ON and OFF according to above chart.

NG → See step   3 

OK → See step   10 

1. Disconnect the z28 oscillator connector.
   Fig 1: Identifying Rear Door Outside Handle And Door Electrical Key Oscillator

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the z27 handle connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z28-9 (TRG-) - z27-1 (TRG-)	Always	Below 1 Ω
   z28-9 (TRG-) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the E30 ECU connector.
   Fig 2: Identifying Certification ECU And Rear Door Outside Handle Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the z27 handle connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E30-25 (TSW3) - z27-3 (TRG+)	Always	Below 1 Ω
   E30-25 (TSW3) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Measure the resistance according to the value(s) in the table below.
   Fig 3: Identifying Rear Door Outside Handle LH Connector Terminal z27

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   z27-1 (TRG-) - z27-3 (TRG+)	Lock switch not pushed	10 kΩ or higher
   	Lock switch pushed	Below 1 Ω

NG → See step   9 

OK: Go to next step 

1. Replace the door electrical key oscillator, refer to DISASSEMBLY - Step 37 .

NEXT: Go to next step 

1. Check that the entry function operates normally.

   OK

   Operates normally.

NG → See step   10 

OK → END (DOOR ELECTRICAL OSCILLATOR IS DEFECTIVE)