Inspection Procedure

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

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   Door locks operate normally	OK
   Door locks do not operate normally	NG

NG: GO TO POWER DOOR LOCK CONTROL SYSTEM 

OK: Go to next step 

1. Using the Techstream, read the Data List.

   Rear Left Door (Rear door ECU LH) 

   MEASUREMENT ITEM/DISPLAY CHART
   
   

   Tester Display	Measurement Item/Display	Normal Condition	Diagnostic Note
   Outside Handle Trigger SW	Rear LH side door outside handle lock switch / ON or OFF	ON: Rear LH side door outside handle lock switch is pushed OFF: Rear LH side door outside handle lock switch is not pushed	-

   OK: On the screen, item changes between ON and OFF according to above chart. 

NG: Go to step  4

OK: Go to next step 

1. Replace the rear door ECU LH with a new one or normally functioning one (see INSTALLATION ).
2. Check that the entry function operates normally.

   OK: Operates normally 

NG: REPLACE CERTIFICATION ECU 

OK: END (REAR DOOR ECU LH IS DEFECTIVE) 

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

   Standard resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   d1-1 (TRG-) - d1-3 (TRG+)	ON	Below 1 Ω
   d1-1 (TRG-) - d1-3 (TRG+)	OFF	10 kΩ or higher

   Fig 1: Identifying d1 Handle Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE REAR DOOR OUTSIDE HANDLE LH  (See INSTALLATION )

OK: Go to next step 

Fig 2: Identifying d1 Handle Connector And O14 ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the d1 handle connector.
2. Disconnect the O14 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   d1-3 (TRG+) - O14-20 (TRG+)	Always	Below 1 Ω
   d1-3 (TRG+) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 3: Identifying d1 Handle Connector And d2 Oscillator Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the d1 handle connector.
2. Disconnect the d2 oscillator connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   d1-1 (TRG-) - d2-9 (TRG-)	Always	Below 1 Ω
   d1-1 (TRG-) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door electrical key oscillator with a new one or normally functioning one (see INSTALLATION ).
2. Check that the entry function operates normally.

   OK: Operates normally 

NG: Go to step 8 

OK: Go to next step 

1. Replace the rear door ECU LH with a new one or normally functioning one (see INSTALLATION ).
2. Check that the entry function operates normally.

   OK: Operates normally 

NG: REPLACE CERTIFICATION ECU 

OK: END (REAR DOOR ECU LH IS DEFECTIVE)