DTC B256B: Lock in Side Package Tray Motor RH Circuit: Procedure

1. Remove the side package tray trim motor RH.
   Fig 1: Identifying No. 1 Package Tray Trim Hinge (Side Package Tray Trim Motor RH)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Apply battery voltage to the motor connector according to the table below.

   OK

   Measurement Condition	Specified Condition
   Battery positive (+) → Terminal 2 Battery negative (-) → Terminal 1	Motor gear rotates counterclockwise
   Battery positive (+) → Terminal 1 Battery negative (-) → Terminal 2	Motor gear rotates clockwise

3. Connect an electrical tester DC 400 A probe to the wire harness of the motor.
   NOTE:

   Match the arrow mark of the probe with the direction of the current flow.

4. Measure the current according to the value(s) in the table below.
   NOTE:

   Make sure to perform the inspection after the motor cools down sufficiently. Otherwise the result may not meet the specified condition due to protection circuit operation in the motor.

   Standard Current

   Measurement Condition	Specified Condition
   Battery positive (+) → Terminal 2 Battery negative (-) → Terminal 1	Below 0.4 A

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Side Package Tray Trim Motor RH)
   *2	Motor Gear
   *3	Clockwise
   *4	Counterclockwise

NG → REPLACE NO. 1 PACKAGE TRAY TRIM HINGE (SIDE PACKAGE TRAY TRIM MOTOR RH) 

OK: Go to next step 

1. Disconnect the h9 and Q36 connectors.
   Fig 2: Identifying H9 & Q36 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
   Q36-1 (SMR+) - Q36-2 (SMR-)	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	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 h9 and A connectors.
   Fig 3: Identifying H9 & 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
   h9-4 (SMR+) - A-2	Always	Below 1 Ω
   h9-5 (SMR-) - A-1	Always	Below 1 Ω
   h9-4 (SMR+) - h9-5 (SMR-)	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (No. 1 Package Tray Trim Hinge)

NG → REPLACE NO. 1 PACKAGE TRAY TRIM HINGE (HARNESS OR CONNECTOR) 

OK → REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY