Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Land Rover >> 2012 >> LR4 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (General Information (Description)) >> General Information >> Description & Operation >> Diagnostic Trouble Code (DTC) Index (DTC: Digital Audio Control Module C (DACMC)) >> Digital Audio Control Module C (DACMC)

Digital Audio Control Module C (DACMC)

WARNING: This page is about a different car, the 2012 Land Rover Range Rover Sport and 2011 Land Rover Range Rover Sport. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Diagnosis by substitution from a donor vehicle is NOT  acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
NOTE: If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures information, or determine if any prior approval program 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 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).
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 Digital Audio Control Module, for additional Diagnosis and Testing information refer to the relevant Diagnosis and Testing 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
Refer to the electrical guides and check the diversity antenna amplifier circuit and the antenna for open circuit
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
Refer to the electrical guides and check the diversity antenna amplifier power circuit
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