Folding Top Control Module (FTCM)

CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number 3548-1358-00.

NOTE: If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual (section B1.2), or determine if any prior approval programme is in operation, prior to the installation of a new module/component.

NOTE: Generic scan tools may not read the codes listed, or may read only five digit codes. Match the five digits from the scan tool to the first five digits of the seven digit code listed to identify the fault (the last two digits give additional information read by the manufacturer approved diagnostic system).

NOTE: When performing electrical voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal places, and with an up-to-date calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.

NOTE: Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.

NOTE: Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.

NOTE: If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.

The table below lists all diagnostic trouble codes (DTCs) that could be logged in the folding top control module, for additional diagnosis and testing information. For additional information, refer to: CONVERTIBLE TOP .

DTC	Description	Possible Cause	Action
B107923	Convertible top up switch	Signal Stuck Low	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107A23	Convertible top down switch	Signal Stuck Low	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107B15	Convertible top pump motor	Convertible top pump motor circuit - short to power, high resistance	Refer to the electrical circuit diagrams and test convertible top pump motor circuit for short to power, high resistance
B107B11	Convertible top pump motor	Convertible top pump motor circuit - short to ground	Refer to the electrical circuit diagrams and test convertible top pump motor circuit for short to ground
B107C15	Convertible top rear quarter motor	Convertible top rear quarter motor circuit - short to power, high resistance	Refer to the electrical circuit diagrams and test convertible top rear quarter motor circuit for short to power, high resistance
B107C11	Convertible top rear quarter motor	Convertible top rear quarter motor circuit - short to ground	Refer to the electrical circuit diagrams and test convertible top rear quarter motor circuit for short to ground
B107D15	Convertible top latch motor	Convertible top latch motor circuit - short to power, high resistance	Refer to the electrical circuit diagrams and test convertible top latch motor circuit for short to power, high resistance
B107D11	Convertible top latch motor	Convertible top latch motor circuit - short to ground	Refer to the electrical circuit diagrams and test convertible top latch motor circuit for short to ground
B107E15	Convertible top compartment lid valve 1	Convertible top compartment lid valve1 circuit - short to power, high resistance	Refer to the electrical circuit diagrams and test convertible top compartment lid valve1 circuit for short to power, high resistance
B107E11	Convertible top compartment lid valve 1	Convertible top compartment lid valve1 circuit - short to ground	Refer to the electrical circuit diagrams and test convertible top compartment lid valve1 circuit for short to ground
B107F15	Tension bow valve 2	Tension bow valve 2 circuit - short to power, high resistance	Refer to the electrical circuit diagrams and test tension bow valve 2 circuit for short to power, high resistance
B107F11	Tension bow valve 2	Tension bow valve 2 circuit - short to ground	Refer to the electrical circuit diagrams and test tension bow valve 2 circuit for short to ground
B108015	Tension bow valve 3	Tension bow valve 3 circuit - short to power, high resistance	Refer to the electrical circuit diagrams and test tension bow valve 3circuit for short to power, high resistance
B108011	Tension bow valve 3	Tension bow valve 2 circuit - short to ground	Refer to the electrical circuit diagrams and test tension bow valve 2 circuit for short to ground
B107031	Convertible top compartment lid piston out sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107131	Tension bow piston in sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107231	Tension bow piston out sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107331	Main bow piston in sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107431	Main bow piston out sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107531	Main bow piston centre sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107631	Front latch open sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107731	Front latch close sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B107831	Convertible top latched sensor	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
B113531	Convertible top compartment lid switch	No signal	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U001088	Medium speed CAN communication Bus	Bus off	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U014000	Lost communication CJB	Lost communication CJB	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U014200	Lost communication with RJB	Lost communication with RJB	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U015500	Lost communication with Instrument Cluster	Lost communication with Instrument Cluster	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U019900	Lost communication with Driver Door Module (DDM)	Lost communication with Driver Door Module (DDM)	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U020000	Lost communication with Passenger Door Module (PDM)	Lost communication with Passenger Door Module (PDM)	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U030000	Control module software incompatibility	RJB car configuration data is not compatible with the convertible top module	Re-configure the RJB using the manufacturer approved diagnostic system. Clear DTCs and re-test. If DTC still logged, suspect convertible top module. Refer to new module installation note at top of DTC Index
U049A67	Invalid data received from Driver Door Module (DDM)	Signal incorrect after event	Check DDM for DTCs and refer to DTC Index
U050167	Invalid data received from Passenger Door Module (PDM)	Signal incorrect after event	Check PDM for DTCs and refer to DTC Index
U1A1449	CAN initialisation failure	Internal electronic failure	Install a new convertible top module, refer to the new module installation note at the top of the DTC Index
U1A4C68	Build/end of line mode active	Manufacturing mode has not been removed	Set convertible top to customer mode using manufacturer approved diagnostic system
U300316	Battery voltage	Circuit voltage below threshold	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U300317	Battery voltage	Circuit voltage above threshold	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system