Inspection Procedure: Procedure

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

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Door Courtesy SW	Driver side door courtesy switch signal/ON or OFF	ON: Driver side door is open OFF: Driver side door is closed	-
   P Door Courtesy SW	Front passenger side door courtesy switch signal/ON or OFF	ON: Front passenger side door is open OFF: Front passenger side door is closed	-
   RR Door Courtesy SW	Rear door courtesy switch RH signal/ON or OFF	ON: Rear door RH is open OFF: Rear door RH is closed	-
   RL Door Courtesy SW	Rear door courtesy switch LH signal/ON or OFF	ON: Rear door LH is open OFF: Rear door LH is closed	-
   Luggage Courtesy SW	Luggage compartment door courtesy switch signal/ON or OFF	ON: Luggage compartment door is open OFF: Luggage compartment door is closed	-

   OK

   Normal conditions listed above are displayed.

NG → See step   2 

OK → See step   4 

1. Inspect the front door courtesy switch. Refer to INSPECTION , rear door courtesy switch. Refer to INSPECTION , or luggage compartment door courtesy switch. Refer to INSPECTION .

   OK

   Door courtesy switches are normal.

NG → REPLACE DOOR COURTESY SWITCH 

OK: Go to next step 

1. Disconnect the E50*1 or E61*2 main body ECU connector.
   Fig 1: Checking Harness & Connector (Instrument Panel Junction Block - Switch)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 2A and 2E instrument panel junction block connectors.
3. Disconnect the L18 door lock assembly connector.
4. Disconnect each door courtesy switch connector.
5. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Front LH 

   Front RH 

   Rear LH 

   Rear RH 

   Luggage Compartment Door 

   Tester Connection	Condition	Specified Condition
   2A-21 (DCTY) - L3-1	Always	Below 1 Ω
   L3-1 - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   2E-20 (PCTY) - M1-1	Always	Below 1 Ω
   M1-1 - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   E50-8 (LCTY)*1 - L5-1 E61-13 (LCTY)*2 - L5-1	Always	Below 1 Ω
   L5-1 - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   2E-19 (RCTY) - M3-1	Always	Below 1 Ω
   M3-1 - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   2A-7 (LGCY) - L18-3	Always	Below 1 Ω
   L18-3 - Body ground	Always	10 kΩ or higher
   L18-2 - Body ground	Always	Below 1 Ω

   HINT: 

   • *1: w/ Smart Key System
   • *2: w/o Smart Key System

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)