B2564

SLIDING ROOF / CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2564: Difference between RH and LH Roof Drive Motor Pulse
B2564 - Difference between RH and LH Roof Drive Motor Pulse

DESCRIPTION

The sliding roof control ECU assembly controls the speed of the roof panels using pulse signals that are generated by the rotation of the sliding roof drive gear assembly RH (roof motor RH) and sliding roof drive gear assembly LH (roof motor LH).





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 RH (ROOF MOTOR RH)

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





(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 RH (ROOF MOTOR RH)
OK -- Continue to next step.

2. 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