Inspection Procedure

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

   OK: Door locks operate normally. 

NG: GO TO POWER DOOR LOCK CONTROL SYSTEM  (See PROBLEM SYMPTOMS TABLE )

OK: Go to next step 

1. Using the Techstream, read the Data List.

   Smart Access 

   DIAGNOSTIC NOTE NORMAL CONDITION CHART
   
   

   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: Go to step 3 

OK: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  (See REMOVAL  )

1. Disconnect the z28 oscillator connector.
2. Disconnect the z27 handle connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   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

   Fig 1: Identifying z28 Oscillator Connector And z27 Handle Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the E30 ECU connector.
2. Disconnect the z27 handle connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   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

   Fig 2: Identifying E30 ECU Connector And z27 Handle Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   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

   Fig 3: Identifying Rear Door Outside Handle LH Connector Terminal z27

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE REAR DOOR OUTSIDE HANDLE  (See DISASSEMBLY )

OK: Go to next step 

1. Replace the door electrical key oscillator (See DISASSEMBLY )

1. Check that the entry function operates normally

   OK: Operates normally. 

NG: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  (See REMOVAL  )

OK: END (DOOR ELECTRICAL OSCILLATOR IS DEFECTIVE)