Digital Audio Control Module C (DACMC)

WARNING: This page is about a different car, the 2011 Jaguar XKR, 2011 Jaguar XK, 2010 Jaguar XKR, and 2010 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.

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 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.

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 extra information read by the manufacturer-approved diagnostic system).

NOTE: When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal places and with a current 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: 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 digital audio control module, for additional diagnosis and testing information. For additional information, refer to: AUDIO SYSTEM .

DTC	Description	Possible causes	Action
B1A56-02	Antenna - general signal failure	Antenna general signal failure	Renew the diversity antenna amplifier.
B1A56-11	Antenna - circuit short to ground	Diversity antenna amplifier circuit short to ground	Refer to the electrical guides and check the diversity antenna amplifier circuit and the antenna for short circuit to ground.
B1A56-12	Antenna - circuit short to battery	Diversity antenna amplifier circuit short to power	Refer to the electrical guides and check the diversity antenna amplifier circuit and the antenna for short circuit to power.
B1A56-13	Antenna - circuit open	Diversity antenna amplifier circuit open circuit	NOTE: This DTC is always logged in X150 XK 2010 model year. Repair action is not required.
U200D-14	Control Module Output Power A - circuit short to ground or open	Diversity antenna amplifier power supply circuit short to ground or open circuit	NOTE: This DTC is always logged in X150 XK 2010 model year. Repair action is not required.
U3000-04	Control Module - system internal failures	Diversity antenna amplifier internal failure	Renew the amplifier module.
U3000-4A	Control Module - incorrect component installed	Diversity antenna amplifier internal incorrect component installed The module has been installed to a vehicle not configured to accept it	Using the manufacturer approved diagnostic system select the vehicle configuration main menu, select configure existing modules menu and program the module.
U3000-55	Control Module - not configured	Diversity antenna amplifier not configured correctly	Using the manufacturer approved diagnostic system select the vehicle configuration main menu, select configure existing modules menu and program the module.
U3000-87	Control Module - missing message	Missing message	Using the manufacturer approved diagnostic system select the vehicle configuration main menu, select configure existing modules menu and program the module.
U3000-98	Control Module - component or system over temperature	Diversity antenna amplifier component or system over temperature	Consider moving the amplifier mounting position to prevent unit overheating. Cool the vehicle interior down by ensuring it is in the shade and have the A/C on cool. When cool, clear the DTC and retest. If the problem persists, renew the amplifier module.
U3003-62	Battery Voltage - signal compare failure	Mismatch in battery voltage of 2 volts or more for longer than 1 minute, between the measured battery voltage at the Digital Audio Control Module C and the battery voltage signal sent from the Rear Junction Box.	Refer to the electrical guides and check that power supply voltage at Digital Audio Control Module C and Rear Junction Box is not different by more than 2 volts. Rectify as required.