All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Read the Data List according to the display on the Techstream.
   MAIN BODY (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Door Lock SW-Lock	Front passenger side door control switch lock signal/ON or OFF	ON: Lock side of front passenger side door control switch pushed OFF: Lock side of front passenger side door control switch not pushed	-
   Door Lock SW-Unlock	Front passenger side door control switch unlock signal/ON or OFF	ON: Unlock side of front passenger side door control switch pushed OFF: Unlock side of front passenger side door control switch not pushed	-

   OK

   The Techstream indicates ON or OFF according to the switch operation shown in the table.

NG → See step   2 

OK → See step   5 

1. Remove the door control switch assembly. Refer to REMOVAL .
   Fig 1: Inspecting Door Control Switch Assembly

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   4 (L) - 3 (E)	Locked	Below 1 Ω
   4 (L) - 3 (E)	off	10 kΩ or higher
   2 (UL) - 3 (E)	Unlocked	Below 1 Ω
   2 (UL) - 3 (E)	off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Door Control Switch Assembly)
   *b	Unlock
   *c	Lock

NG → See step   4 

OK: Go to next step 

1. Disconnect the main body ECU (multiplex network body ECU) connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N9-2 (UL) - L7-10 (UL1)	Always	Below 1 Ω
   N9-4 (L) - L7-9 (L1)	Always	Below 1 Ω
   N9-3 (E) - Body ground	Always	Below 1 Ω
   N9-2 (UL) - Body ground	Always	10 kΩ or higher
   N9-4 (L) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   5