DTC B2560: Motor Lock in Roof Lock Motor: Procedure

1. Remove the sliding roof drive gear sub-assembly (roof front lock motor).
   Fig 1: Identifying Sliding Roof Drive Gear Sub-Assembly (Roof Front Lock Motor)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Apply battery voltage and check operation of the roof front lock motor.

   OK

   Measurement Condition	Specified Condition
   Battery positive (+) → 1 (HLM+) Battery negative (-) → 2 (HLM-)	Motor gear rotates counterclockwise
   Battery positive (+) → 2 (HLM-) Battery negative (-) → 1 (HLM+)	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 (+) → 2 (HLM-) Battery negative (-) → 1 (HLM+)	0.1 to 1.6 A

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Sliding Roof Drive Gear Sub-assembly)
   *2	Motor Gear
   *3	Clockwise
   *4	Counterclockwise

NG → REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY 

OK: Go to next step 

1. Check that the wire harness of the roof front lock switch has not been pinched by the body.
2. Disconnect the e2 connector.
   Fig 2: Identifying E2 Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1

   Component without harness connected (Removable Roof Lock Sub-assembly)

   *2

   Roof Front Lock Switch

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   1 (RLR) - 2 (RLRE)	Switch pressed	Below 1 Ω
   1 (RLR) - Body ground	Switch not pressed	10 kΩ or higher
   1 (RLR) - 2 (RLRE)	Switch not pressed	10 kΩ or higher

NG → REPLACE REMOVABLE ROOF LOCK SUB-ASSEMBLY (ROOF FRONT LOCK SWITCH) 

OK: Go to next step 

1. Disconnect the e2 and P53 connectors.
   Fig 3: Identifying E2 & 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
   e2-1 (RLR) - P53-21 (RLR)	Always	Below 1 Ω
   e2-2 (RLRE) - Body ground	Always	Below 1 Ω
   P53-21 (RLR) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Removable Roof Lock Sub-assembly)
   *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 e1 and e2 connectors.
   Fig 4: Identifying E1 & E2 Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Apply battery voltage to the motor connector and measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 (RLR) - 2 (RLRE)	Battery positive (+) → 1 (HLM+) Battery negative (-) → 2 (HLM-) (Removable roof lock unlocks)	Below 1 Ω
   1 (RLR) - 2 (RLRE)	Battery positive (+) → 2 (HLM-) Battery negative (-) → 1 (HLM+) (Removable roof lock unlocks)	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Removable Roof Lock Sub-assembly)
   *2	Component without harness connected (Sliding Roof Drive Gear Sub-assembly)

NG → REPLACE REMOVABLE ROOF LOCK SUB-ASSEMBLY (ROOF FRONT LOCK SWITCH) 

OK → REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY