B2568

SLIDING ROOF / CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2568: Lock in Back Window Panel Drive Motor RH Circuit
B2568 - Lock in Back Window Panel Drive Motor RH Circuit

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 (back window motor RH/LH) operates the back window panel.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
This DTC is also stored when the back window lock assembly (back window close switch), slide roof motor assembly (back window open switch) or slide roof motor assembly (back window half open switch) is malfunctioning. Therefore when manual operation Procedures of the back window panel is possible (the back window panel is not stuck), perform the inspection procedures for DTCs B252A, B252B and B252C.

PROCEDURE

1. INSPECT SLIDING ROOF DRIVE GEAR ASSEMBLY (BACK WINDOW MOTOR RH)

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





(b) Apply battery voltage and check operation of the back window 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 (BACK WINDOW MOTOR RH)
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (SLIDE ROOF MOTOR - SLIDING ROOF CONTROL ECU)

(a) Disconnect the P57 and P55 connectors.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK SLIDE ROOF MOTOR ASSEMBLY (HARNESS AND CONNECTOR)

(a) Disconnect the P57 and P55 connectors.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE SLIDE ROOF MOTOR ASSEMBLY (HARNESS OR CONNECTOR)

OK -- REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY