B2509

CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2509: Short in Pulse Width Modulation Motor RH Circuit

DTC B2509 - Short in Pulse Width Modulation Motor RH Circuit

DESCRIPTION

The pulse width modulation motor circuit includes the roof drive motor, luggage door drive motor and luggage closer motor.
The sliding roof control ECU drives these motors using this same circuit.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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




(a) Remove the sliding roof drive gear RH Removal.
(b) Apply battery voltage to the drive gear terminals and check operation of the sliding roof drive gear RH.
OK:






NG -- REPLACE SLIDING ROOF DRIVE GEAR ASSEMBLY RH
OK -- Continue to next step.
2. INSPECT LUGGAGE DOOR DRIVE GEAR ASSEMBLY RH (LUGGAGE DOOR DRIVE MOTOR RH)




(a) Remove the luggage door drive gear RH Removal.
(b) Apply battery voltage to the drive gear terminals and check operation of the luggage door drive gear RH.
OK:






NG -- REPLACE LUGGAGE DOOR DRIVE GEAR ASSEMBLY RH
OK -- Continue to next step.
3. INSPECT LUGGAGE CLOSER MOTOR ASSEMBLY (CLOSER MOTOR RH OPERATION)




(a) Remove the luggage closer motor RH Disassembly.
(b) Apply battery voltage to the motor terminals and check operation of the luggage closer motor RH.
OK:






NG -- REPLACE LUGGAGE CLOSER MOTOR ASSEMBLY
OK -- Continue to next step.
4. CHECK WIRE HARNESS FOR SHORT CIRCUIT (ECU - SLIDING ROOF DRIVE GEAR RH)




(a) Disconnect the S20 ECU connector.
(b) Disconnect the R17 drive gear connector.
(c) Measure the resistance of the wire harness side connector.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
5. CHECK WIRE HARNESS FOR SHORT CIRCUIT (ECU - LUGGAGE DOOR DRIVE GEAR RH)




(a) Disconnect the S20 ECU connector.
(b) Disconnect the L18 drive gear connector.
(c) Measure the resistance of the wire harness side connector.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
6. CHECK WIRE HARNESS FOR SHORT CIRCUIT (ECU - LUGGAGE CLOSER MOTOR RH)




(a) Disconnect the S19 ECU connector.
(b) Disconnect the L16 motor connector.
(c) Measure the resistance of the wire harness side connector.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE SLIDING ROOF CONTROL ECU