Navigation Control Module (NAV)

NOTE: If a control module or 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 program is in operation, before the replacement of a 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: When performing 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.

Description And Operation

For a detailed description of the navigation system, refer to the relevant Description and Operation section in the workshop manual. Refer to Navigation System .

NAVIGATION CONTROL MODULE (NCV)

DTC	Description	Possible Cause	Action
B1A89-11	Satellite antenna	GPS antenna circuit - short to ground	Refer to electrical circuit diagrams and check GPS antenna circuit for short to ground
B1A89-13	Satellite antenna	GPS antenna circuit - open circuit	Refer to electrical circuit diagrams and check GPS antenna circuit for open circuit
B1A89-1B	GPS module	GPS receiver error	Install a new multimedia module. Refer to Navigation System Digital Versatile Disc (DVD) Unit .
B1D55-14	Antenna #2 circuit	TMC/VICS antenna circuit - open circuit	NOTE: Ignore this DTC on vehicles with an E, D or C* suffix module part number If a fault is identified with the TMC system, refer to electrical circuit diagrams and check TMC/VICS antenna circuit for open circuit
B1D56-14	Antenna #3 circuit	VICS beacon antenna circuit - open circuit	Refer to electrical circuit diagrams and check VICS beacon antenna circuit for open circuit
U2005-31	Control module	Missing vehicle speed message	Check information and entertainment module for MOST network error DTCs and refer to relevant DTC Index. Carry out MOST network tests using manufacturer approved diagnostic system
U3000-49	Control module	Internal failure	Install a new multimedia module. Refer to Navigation System Digital Versatile Disc (DVD) Unit .
U3000-55	Control module	Incorrect Car Configuration File data received	Check/up-date Car Configuration File using manufacturer approved diagnostic system
U3000-87	Control module	Missing message	Check CJB for DTCs and refer to DTC Index. Refer to Communications Network . Check information and entertainment module for Car Configuration File and MOST network DTCs and refer to relevant DTC Index. Carry out MOST/CAN network tests using the manufacturer approved diagnostic system
U3000-98	Control module	Component or system over temperature	Check for additional DTCs and refer to relevant DTC Index. Check/monitor system for re-occurrence
U3003-16	Battery voltage	Circuit voltage below threshold	Carry out pinpoint tests associated with this DTC using the manufacturer approved diagnostic system
U3003-17	Battery voltage	Circuit voltage above threshold	Carry out pinpoint tests associated with this DTC using the manufacturer approved diagnostic system