Power Back Door System: Inspection

1. Check the resistance of the switch.

Standard: 

If the result is not as specified, replace the switch.

Fig 1: Identifying Power Back Door Off Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check that the switch illuminates.

   Standard: 

   SPECIFIED CONDITION
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) --> ILL+ (2)	Illuminates
   Battery negative (-) --> ILL- (1)

   If the result is not as specified, replace the switch assy or bulb.

   Fig 2: Identifying Power Back Door Opener/Closer Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the resistance of the switch.

Standard:

If the result is not as specified, replace the switch.

Fig 3: Identifying Power Back Door Opener/Closer Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the resistance of the switch.

Standard: 

If the result is not as specified, replace the switch.

Fig 4: Identifying Back Door Opener Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the resistance of the switch.

   Standard: 

   SWITCH POSITION SPECIFICATIONS
   
   

   Tester Connection	Switch Position	Specified Condition
   1 - 2	Push (ON)	Below 1 Ω
   	Free (OFF)	10kΩ or higher

If the result is not as specified, replace the switch.

Fig 5: Identifying Power Back Door Closer Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the resistance of the sensor.

Standard: 

If the result is not as specified, replace the sensor.

Fig 6: Identifying Power Back Door Touch Sensor Connector Terminals (LH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the resistance of the sensor.

   Standard: 

   SWITCH POSITION SPECIFICATIONS
   
   

   Tester Connection	Switch Position	Specified condition
   1 - 2	Free	Approx. 1 kΩ
   	Pressed	Less than 100 Ω

If the result is not as specified, replace the sensor.

Fig 7: Identifying Power Back Door Touch Sensor Connector Terminals (RH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the unit (See OVERHAUL ).
2. Apply battery voltage to the terminals and check the motor operation.

   Standard: 

   MEASUREMENT CONDITION SPECIFICATIONS
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) --> Terminal 7 Battery negative (-) --> Terminal 8	Open
   Battery positive (+) --> Terminal 8 Battery negative (-) --> Terminal 7	Close

3. Check the resistance of the clutch terminals.

   Standard: 

   TESTER CONNECTION SPECIFICATIONS
   
   

   Tester Connection	Specified Condition
   3 - 9	4.0 Ω

4. Reinstall the unit with the connector connected.

   If the result is not as specified, replace the drive unit.

   Fig 8: Identifying Power Back Door Drive Unit Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Check the pulse of the pulse sensor.
   1. Using an oscilloscope, check the pulse generated when the door is manually opened and closed.

   Standard (Reference): 

   TESTER CONNECTION SPECIFICATIONS
   
   

   Tester Condition	1 - 6, 5 - 6
   Tool setting	10 V/DIV., 10 ms/DIV.
   Vehicle condition	Door moving

   HINT:

   A cycle of the pulse changes between approx. 10 to 20 msec. according to the speeds that the slide door is moving.

   If the result is not as specified, replace the drive unit.

   Fig 9: Checking Pulse Of Pulse Sensor Graph

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the resistance of the buzzer.

   Standard: 

   TESTER CONNECTION SPECIFICATIONS
   
   

   Tester Condition	Specified Condition
   1 - 2	Approx. 1 kΩ

   If the result is not as specified, replace the buzzer.

   NOTE:

   • The circuit that causes the buzzer to sounds is built into the back door ECU, not around the buzzer.
   • Directly applying battery voltage to the buzzer does not cause the buzzer to sound.
   Fig 10: Identifying Back Door Warning Buzzer Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002