Instrument Cluster (IPC) fault code (Defender 2007+)

NOTE: If a module or component failure is suspected and the vehicle is still under manufacturer's warranty, refer to the warranty manual before replacing the component (section B1.2) or determine if there is any previously approved special program in effect.

NOTE: Generic scan tools may not be able to read the codes listed or may only be able to read 5-digit codes. Match the 5 digits from the scan tool with the first 5 digits of the listed 7-digit code to identify the fault (the last 2 digits provide additional information readable by a manufacturer approved diagnostic system).

NOTE: When performing voltage or resistance tests, always use a digital multimeter (DMM) with three decimal places of accuracy and a valid calibration certificate. When testing resistance, be sure to include the resistance of the DMM leads.

NOTE: Before starting diagnostic programs using fault location tests, check and correct basic faults.

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

NOTE: If DTCs are set and the fault is not present after performing the troubleshooting tests, an intermittent problem may be the cause. Be sure to check for loose connections and corroded terminals.

(The publication was copied from a web resource: «lrman.ru»)

For more information, please refer to the chapter: (413-01 Instrument cluster).

dtc	Description	Possible cause(s)	Action
U0001-88	Malfunction due to disconnection of high-speed controller area network (CAN) bus	CAN circuit: short circuit between each other CAN circuit: short circuit to power supply CAN circuit: short circuit to ground Engine control unit failure Instrument cluster failure	Perform a full reading of the vehicle's diagnostic trouble codes indicating a CAN circuit or module failure. Correct as necessary. Clear the DTCs and check for proper operation. Refer to the warranty policy and procedures manual if module failure is suspected.
B1A75-01	Fuel Sensor 1: General Electrical Malfunction	Fuel Level Sensor Circuit Short to Ground Fuel Level Sensor Circuit Short to Power Fuel level sensor electrical circuit: open circuit Fuel sensor failure	Check the fuel level sensor and circuits. Refer to the electrical diagrams. If necessary, install a new fuel level sensor. For more information, refer to the chapter: Fuel Level Sensor (310-01 Fuel tank and fuel lines - Diesel engine ID4 2.4L, Removal and installation). Clear DTCs and verify proper operation. Refer to the Warranty Policy and Procedures manual if instrument cluster failure is suspected.
B1A81-64	Invalid data of internal circuit of disconnect switch	Instrument cluster failure	Check the instrument cluster circuits. Refer to the electrical diagrams. Clear the DTC. Cycle the ignition and retest. If the diagnostic trouble codes reset, check the instrument cluster. Refer to the warranty policy and procedures manual if instrument cluster failure is suspected.
P1602-31	Immobilizer/Engine Control Unit Communication Error: No Signal	Signaling (immobilizer) - instrument cluster circuit: short circuit to ground Signaling (immobilizer) - instrument cluster circuit: short circuit to power supply Signaling (immobilizer) - instrument cluster circuit: open circuit Engine control unit malfunction Instrument cluster failure	Check for related DTCs. Correct as necessary. Clear DTCs and check for proper operation. Check alarm circuits (immobilizer). Refer to electrical diagrams. Correct as necessary. Clear DTCs and verify proper operation. Refer to warranty policy and procedures manual if unit failure is suspected.
U0100-87	No communication on the controller area network (CAN) bus: engine control module (ECM)	CAN circuit: open circuit Engine control unit malfunction Instrument cluster failure	Perform a full vehicle DTC readout. Check for other CAN bus related DTCs or apparently unrelated customer complaints. Check CAN bus and unit power and ground circuits. Refer to electrical diagrams. Correct as necessary. Clear DTCs and test for proper operation. Refer to the Warranty Policy and Procedures manual if unit failure is suspected.
U0401-68	Invalid data received from the engine control module (ECM)	Incorrect signals received from the engine control unit	Check for related DTCs. Correct as necessary. Clear DTCs and test for proper operation. Check sensor signal circuits. Refer to electrical diagrams. Correct as necessary. Clear DTCs and test for proper operation.
U2101-00	Control unit configuration incompatibility	The central unit configuration parameter is missing or corrupted	Check if the correct version of the vehicle configuration software is installed in the central unit. If necessary, reprogram the instrument cluster.
U3000-17	Control unit overvoltage.	The engine is started using the booster unit The supply voltage has exceeded 17.4 V for 12 seconds Charging system overload	Check instrument cluster power circuits. Check charging system and charging voltage. Refer to electrical diagrams. Correct as necessary. Clear DTC. Cycle ignition and retest. Refer to warranty policy and procedures manual if instrument cluster failure is suspected.
U3000-46	Control unit electrically erasable programmable ROM (EEPROM) error	Loss of power supply voltage in the instrument panel line with the ignition on Instrument cluster failure	Check the instrument cluster circuits. Refer to the electrical diagrams. Correct as necessary. Clear the DTC. Cycle the ignition and retest. Set up the unit using the approved diagnostic system. If the diagnostic trouble codes reset, check the instrument cluster. Refer to the warranty policy and procedures manual if instrument cluster failure is suspected.