Full Open Retractable Roof

DIAGNOSIS AND TESTING

Any diagnosis of the FULL OPEN RETRACTABLE ROOF (FORR) system should begin with a scan tool and proper Diagnostic Procedures. The scan tool can provide confirmation that the FORR Electronic Control Unit (ECU), (sometimes referred to as the Power Top Control Module) is functional, that all of the electronic modules are sending and receiving the proper messages on the Controller Area Network (CAN) Data Bus, and that the power to the FORR is being sent the proper hard wired output by the FORR switch.

Check the condition of the circuit protection and inspect all wiring connector pins for proper engagement and continuity. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views wire harness connectors, splices and grounds.

NOTE:

Roof limits:
- Motor Thermal Protection: The ECU Calculates the internal motor temperature. When the calculated temperature exceeds 365F(185C), the ECU allows the roof to only close. At 392F( 200C) The ECU prevents motor movement.
- System Low Temperature Operation: (Via the Vehicle Ambient Temp Sensor) At 14F (-10C ) the ECU does not allow the system to vent without stopping the other motor. At -4F (-20C ) the motors are allowed to close only.
- Speed Thresholds: At 86 m.p.h. (138 km/h) we stop operation and at 81 m.p.h. (129 km/h) we resume operation.

NOTE: For the FORR initialization procedure, .