DTC B255B: Luggage Door Closer Neutral Position Switch RH Abnormal Operation: Procedure

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 / Retractable Hardtop / Data List.
5. Read the Data List according to the display on the Techstream.
   RETRACTABLE HARDTOP (SLIDING ROOF CONTROL ECU ASSEMBLY)
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   RH Closer Position SW	Closer position switch RH signal/ON or OFF	ON: Closer position switch RH on (luggage door fully closed) OFF: Closer position switch RH off (luggage door not fully closed)	-

   OK

   The Techstream display changes according to condition as shown in the table.

NG → See step   2 

OK → REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY 

1. Disconnect the P58 and P59 connectors.
2. Check the on/off condition of the position switch built in the luggage door closer assembly RH.
3. Confirm that the position switch changes when battery voltage is applied to the luggage door closer assembly RH motor side connector.
   Fig 1: Identifying P58 & P59 Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard

   Position Switch Condition	Condition	Specified Condition
   Position Switch ON	Battery positive (+) → Terminal 2 Battery negative (-) → Terminal 1	Position switch changes to off
   Position Switch OFF	Battery positive (+) → Terminal 1 Battery negative (-) → Terminal 2	Position switch changes to on

   NOTE:

   As soon as operation of the position switch is checked, disconnect the battery.

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Luggage Compartment Door Hinge Assembly RH (Luggage Door Closer Assembly RH))
   *2	Luggage Compartment Door Hinge Assembly RH (Position Switch)

NG → REPLACE LUGGAGE COMPARTMENT DOOR HINGE ASSEMBLY RH (LUGGAGE DOOR CLOSER ASSEMBLY RH) 

OK: Go to next step 

1. Disconnect the P58, P59 and P53 connectors.
   Fig 2: Identifying P58, P59 & P53 Connectors

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P58-6 (LCRS) - P53-2 (LCRS)	Always	Below 1 Ω
   P53-2 (LCRS) - Body ground	Always	10 kΩ or higher
   P59-2 (LCRE) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Luggage Compartment Door Hinge Assembly RH)
   *2	Front view of wire harness connector (to Sliding Roof Control ECU Assembly)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the P58, P59 and A connectors.
   Fig 3: Identifying P58, P59 & A Connectors

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P59-2 (LCRE) - A-1	Always	Below 1 Ω
   P58-6 (LCRS) - A-2	Always	Below 1 Ω
   P58-6 (LCRS) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Luggage Compartment Door Hinge Assembly RH)

NG → REPLACE LUGGAGE COMPARTMENT DOOR HINGE ASSEMBLY RH (HARNESS OR CONNECTOR) 

OK → REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY