B2557

SLIDING ROOF / CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2557: Motor Lock in Roof Drive Motor(LH)
B2557 - Motor Lock in Roof Drive Motor(LH)

DESCRIPTION

The sliding roof control ECU assembly operates the roof panels, luggage door, back window panel and package trays in the specified order while the sliding roof switch assembly is operated. The sliding roof drive gear assembly LH (roof motor LH) operates the roof panel while adjusting the speed of the right and left side motors.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Before starting troubleshooting, manually move Procedures the roof links to check that they are not sticking or binding.

PROCEDURE

1. INSPECT SLIDING ROOF DRIVE GEAR ASSEMBLY LH (ROOF MOTOR LH)

(a) Remove the sliding roof drive gear assembly LH (roof motor LH).





(b) Apply battery voltage and check operation of the roof motor.

OK:





(c) Connect an electrical tester DC 400 A probe to the wire harness of the motor.

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

(d) Measure the current according to the value(s) in the table below.

NOTICE:
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:





Text in Illustration





NG -- REPLACE SLIDING ROOF DRIVE GEAR ASSEMBLY LH (ROOF MOTOR LH)

OK -- REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY