Luggage Room Light Circuit: Procedure

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

READ VALUE USING TECHSTREAM

Connect the Techstream to the DLC3.
Turn the ignition switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Body / Data List.

Read the display on the Techstream.

BODY (BODY ECU)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Luggage Courtesy Switch	Luggage courtesy switch / ON or OFF	ON: Luggage compartment door is open OFF: Luggage compartment door is closed	-

Normal conditions listed above are displayed.

OK → See step 4

NG: Go to next step

INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY
1. Inspect luggage compartment door lock assembly. Refer to INSPECTION .
  OK
  
  Luggage compartment door lock assembly is normal.
NG → REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

OK: Go to next step

CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL J/B ASSEMBLY - BODY GROUND)

Disconnect the D6 connector from body ECU.

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

Fig 1: Identifying D6 Body ECU Connector Terminals

Standard resistance

Tester Connection	Condition	Specified Condition
D6-25 - Body ground	Luggage compartment door is open	Below 1 Ω
D6-25 - Body ground	Luggage compartment door is closed	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK HARNESS AND CONNECTOR (BATTERY - INSTRUMENT PANEL J/B ASSEMBLY)
1. Using a service wire, connect terminal D6-26 on the wire harness side and body ground.
  
  Fig 2: Identifying D6 Body ECU Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK
  
  Luggage room light comes on.
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

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