Inspection Procedure

1. Check the DTC (See DIAGNOSTIC TROUBLE CODE CHART )

   OK: DTC B1206 is not output. 

NG: GO TO MULTIPLEX COMMUNICATION SYSTEM (DTC B1206)  (See DTC B1206 P/W MASTER SWITCH COMMUNICATION STOP )

OK: Go to next step 

1. Remove the FR DOOR RH fuse from the main body ECU RH (cowl side junction block RH)
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   FR DOOR RH fuse	Always	Below 1 Ω

NG: REPLACE FUSE (FR DOOR RH FUSE) 

OK: Go to next step 

1. Check door lock operation (See OPERATION CHECK  )

   Result 

   RESULT
   
   

   Result	Proceed to
   All doors cannot be locked through driver side door key cylinder	A
   All doors cannot be locked through multiplex network master switch	B

A: Go to step  6

B: Go to next step 

1. Replace the multiplex network master switch assembly (See REMOVAL ).

1. Check that all doors can be locked and unlocked by using the multiplex network master switch (See OPERATION CHECK  ).

   OK: All doors can be locked and unlocked with the multiplex network master switch. 

NG: REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH) 

OK: END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY IS DEFECTIVE) 

1. Connect the Techstream to the DLC3
2. Turn the engine switch on (IG).
3. Turn the Techstream on
4. Enter the following menus. Body Electrical / Body / Data List
5. Read the Data List according to the display on the Techstream

   Body (Main Body RH (Cowl Side Junction Block RH)) 

   DATA LIST
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Door Key SW-Lock	Door key linked lock switch signal / ON or OFF	ON Driver side door key cylinder turned to lock position OFF Driver side door key cylinder not turned	-
   D Door Key SW-UL	Door key linked unlock switch signal / ON or OFF	ON Driver side door key cylinder turned to unlock position OFF Driver side door key cylinder not turned	-

   OK: On the Techstream screen, ON or OFF will be displayed accordingly. 

NG: Go to step 7 

OK: REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH) 

1. Remove the front door lock assembly (driver side) (See REMOVAL  )
2. Measure the resistance according to the value(s) in the table below
   Fig 1: Identifying Front Door Lock Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Door Lock Condition	Specified Condition
   9 (L) - 7 (E)	Lock	Below 1 Ω
   9 (L) - 7 (E)	OFF	10 kΩ or higher
   10 (UL) - 7 (E)	Unlock	Below 1 Ω
   10 (UL) - 7 (E)	OFF	10 kΩ or higher

NG: REPLACE FRONT DOOR LOCK ASSEMBLY (DRIVER SIDE)  (See REMOVAL  )

OK: Go to next step 

1. Disconnect the multiplex network master switch assembly connector
2. Measure the resistance according to the value(s) in the table below

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   M2-9 (L) - M7-4 (KL)	Always	Below 1 Ω
   M2-10 (UL) - M7-14 (KUL)	Always	Below 1 Ω
   M2-7 (E) - Body ground	Always	Below 1 Ω
   M2-9 (L) - Body ground	Always	10 kΩ or higher
   M2-10 (UL) - Body ground	Always	10 kΩ or higher

Fig 2: Identifying M2 And M7 Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY  (See POWER WINDOW MASTER SWITCH )