Trunk / Liftgate Motor: Testing and Inspection

ENGINE HOOD / DOOR: POWER BACK DOOR DRIVE UNIT: INSPECTION

INSPECTION

1. INSPECT POWER BACK DOOR DRIVE UNIT






(a) Remove the unit.
(b) Apply battery voltage to the terminals and check the motor operation.
Standard:





If the result is not as specified, replace the drive unit.
(c) Check the resistance of the clutch terminals.
Resistance:





If the result is not as specified, replace the drive unit.
(d) Reinstall the unit with the connector connected.






(e) 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):






If the result is not as specified, replace the drive unit.
HINT: A cycle of the pulse changes between approx. 10 to 20 msec. according to the speeds that the slide door is moving.

(f) With the connector connected, check the voltage of the terminals of the power back door drive unit connector.