Rear Door UNLOCK Detection Switch LH Circuit: Procedure

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

   Tester Display	Measurement Item /Range	Normal Condition	Diagnostic Note
   Rear Lock Position SW	Door unlock detection switch signal / ON or OFF	ON: Door is unlocked OFF: Door is locked	-

   OK

   On the tester screen, each item changes between ON and OFF according to the chart above.

NG → See step   2 

OK → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE (TO 12/2010)   PROBLEM SYMPTOMS TABLE 

1. Remove the rear door lock assembly LH.
   Fig 1: Inspecting Rear Door Lock Assembly LH & Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the door unlock detection switch.

   Resistance

   Tester Connection	Door Lock Condition	Specified Condition
   Battery positive (+) → Terminal 1 Battery negative (-) → Terminal 4	ON (Door lock set to UNLOCK)	6 - 9 (Below 1 Ω)
   Battery positive (+) → Terminal 4 Battery negative (-) → Terminal 1	OFF (Door lock set to LOCK)	6 - 9 (10 kΩ or higher)

NG → REPLACE REAR DOOR LOCK ASSEMBLY LH 

OK: Go to next step 

1. Disconnect the J5 connector.
   Fig 2: Identifying Rear Door Lock LH And Instrument Panel J/B Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the body ECU from instrument panel J/B.
3. Measure the resistance of the wire harness side connectors.

   Resistance

   Tester Connection	Condition	Specified Condition
   20 (LSWL) - J5-6	Always	Below 1 Ω
   J5-9 - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → PROCEED TO  PROBLEM SYMPTOMS TABLE   NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE