Convertible Roof Motor Circuit

CONVERTIBLE: CONVERTIBLE ROOF CONTROL SYSTEM: Convertible Roof Motor Circuit

Convertible Roof Motor Circuit

DESCRIPTION

The convertible roof motors are installed in the left and right roof links. The roof motors drive the roof links directly and open/close the soft top. Pressing the convertible roof control OPEN/CLOSE switch activates the motors through the convertible roof control ECU.
The convertible roof control ECU can determine if a roof motor has stalled by checking the motor's amperage level. If the soft top is fully open/closed but the motors have a current of 10 A, the ECU assumes that the motors are stalled and sends a stop signal to deactivate the motors.
To prevent motor overload, the ECU performs timer control. In timer control, the ECU will automatically stop the roof motors after 20 seconds of continuous operation (designated fail-safe time).

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT CONVERTIBLE ROOF MOTOR
NG -- REPLACE CONVERTIBLE ROOF MOTOR
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (CONVERTIBLE ROOF CONTROL ECU - CONVERTIBLE ROOF MOTOR)





(a) Check the wire harness between the convertible roof control ECU and convertible roof motor LH.
(1) Disconnect the C17 ECU connector.
(2) Disconnect the C21 motor connector.
(3) Measure the resistance of the wire harness side connectors.
Resistance:









(b) Check the wire harness between the convertible roof control ECU and convertible roof motor RH.
(1) Disconnect the C19 ECU connector.
(2) Disconnect the C22 motor connector.
(3) Measure the resistance of the wire harness side connectors.
Resistance:





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