DTC Index (B, C, P, U Codes - With Testing): B-Codes

NOTE: * = DTC used for more than one fault.

DTC	System	Description	Possible Source	Action
None	Supplemental Restraint System	No communication with RCM	Data link connector (DLC) fault RCM supply circuits: open circuit, short circuit to ground, short circuit to B+ ISO circuit: open circuit, short circuit to ground, short circuit to B+	For DLC circuit tests, RCM and ISO circuit tests, Refer to Module Communications Network article.
None	Supplemental Restraint System	Air bag warning lamp inoperative	Warning lamp circuit: short circuit to ground Warning lamp failure	For warning lamp circuit tests,Refer to Pinpoint Test A ..
B10DF46	Anti-Lock Control - Stability Assist - VIN Range: N52207->N99999	Master cylinder isolation valve	Valve not calibrated Internal HCU fault	The valve values cannot be calibrated in service. Refer to the warranty policy and procedures manual if a module is suspect.
B1231	Anti-Lock Control - Stability Assist - VIN Range: M45255->N52206	Longitudinal acceleration threshold exceeded	Check brake hydraulic/mechanical function/condition Pressure sensor failure ACC failure Hydraulic unit failure Mechanical failure in booster actuation unit Brake booster vacuum low Brake booster failure	Carry out a full vehicle DTC check. Check for DTC P1696 as an indication of an ACC system fault. For pressure sensor circuit tests,Refer to Pinpoint Test I .. For vacuum circuit tests, refer to Inspection and Verification . Contact dealer technical support for further advice.
B1231	Supplemental Restraint System	Warning lamp Flashes to indicate code (see Reading restraints flash codes )	Crash data memory is full	INSTALL a new RCM, Restraints Control Module (RCM) - Removal and Installation .
B1317	Anti-Lock Control - Stability Assist - VIN Range: M45255->N52206	Supply voltage out of range (HIGH)	Charging system failure ABS/DSC module GROUND fault	Check the battery condition and charging system, Refer to Charging System - General Information article. Refer to Battery, Mounting and Cables article.
B1318	Anti-Lock Control - Stability Assist - VIN Range: M45255->N52206	Supply voltage out of range (LOW)	Battery failure, loose connections Charging system failure ABS/DSC module positive supply fault
B1342	Speed Control - VIN Range: N13089->N99999	Internal ACC module fault	ACC module failure	INSTALL a new ACC module. See Speed Control Module .
	Navigation System	ECU is defective	Satellite navigation system module - internal ECU failure	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. check navigation system module for internal failure. Install a new module as required, refer to the new module installation note at the top of the DTC index.
	Parking Brake and Actuation - VIN Range: M45255->N13088	Control module failure	Power supply to module failure Ground to module failure Control module failure	For EPB control module power and ground tests, Refer to Pinpoint Test A .
	Anti-Lock Control - Stability Assist - VIN Range: M45255->N52206	ABC/DSC module failure	ABS/DSC module failure	Contact dealer technical support for advice on possible ABS/DSC module failure
	Speed Control - VIN Range: M45255->N13088	FLR internal sensor fault	FLR sensor failure	Contact dealer technical support for advice on possible ASCCM failure.
B1869	Supplemental Restraint System	Warning lamp ON constantly	RCM disconnected Warning lamp circuit: open circuit, short circuit to high voltage Instrument cluster failure	For warning lamp circuit tests,Refer to Pinpoint Test B .. Contact dealer technical support for advice on possible IC failure
B1869	Supplemental Restraint System	Warning lamp Flashes to indicate code (see Reading restraints flash codes )	RCM internal failure	Contact dealer technical support for advice on possible RCM failure
B1870	Supplemental Restraint System	Warning lamp ON constantly	RCM disconnected Warning lamp circuit: open circuit, short circuit to high voltage Instrument cluster failure	For warning lamp circuit tests,Refer to Pinpoint Test B .. Contact dealer technical support for advice on possible IC failure
B1870	Supplemental Restraint System	Warning lamp Flashes to indicate code (see Reading restraints flash codes )	RCM internal failure	Contact dealer technical support for advice on possible RCM failure
B1884	Supplemental Restraint System		PAD warning lamp bulb PAD warning lamp bulb circuit: high resistance, short circuit to ground, short circuit to B+	For PAD warning lamp bulb circuit tests,Refer to Pinpoint Test E ..
B1890	Supplemental Restraint System
B1891	Supplemental Restraint System		Audible warning circuit	For audible warning circuit tests,Refer to Pinpoint Test Y ..
B1892	Supplemental Restraint System		Audible warning circuit
B1921	Supplemental Restraint System		RCM bracket incorrectly secured	Correctly install RCM, tighten securing bolts to the correct torque
B1A00	Heating and Ventilation - Auxiliary Heating	Checksum error	Internal EEPROM corruption	Reprogram the module using the Jaguar approved diagnostic system.
	Heating and Ventilation - Auxiliary Heating	Low voltage	Voltage below threshold	Check the battery, charge if necessary. Refer to Battery . Check the charging system and refer to Generator .
	Heating and Ventilation - Auxiliary Heating	High voltage	Voltage above threshold	Check the charging system. Refer to Generator . Check to see if a boost charger has been used on the vehicle. Clear the DTC.
	Heating and Ventilation - Auxiliary Heating	Module in lock-out mode	Error detected in system	The error causing this code to set should also set a specific DTC. Check for other DTCs and rectify as necessary before clearing all codes.
B1D22	Heating and Ventilation - Auxiliary Heating	Water temperature sensor	Water temperature sensor circuit: short circuit to ground	Check the harness and connections to the auxiliary heater assembly. Clear the code and carry out the function check. If the code sets again, install a new auxiliary heater assembly. See Auxiliary Heater .
B1D22	Heating and Ventilation - Auxiliary Heating	Water temperature sensor	Water temperature sensor circuit: short circuit to power Water temperature sensor circuit: open circuit
B1D23	Heating and Ventilation - Auxiliary Heating	Overheat sensor	Overheat sensor circuit: open circuit
B1D24	Heating and Ventilation - Auxiliary Heating	Glow plug	Glow plug circuit: short circuit to ground
B1D24	Heating and Ventilation - Auxiliary Heating	Glow plug	Glow plug circuit: short circuit to power Glow plug circuit: open circuit
B1D25	Heating and Ventilation - Auxiliary Heating	Auxiliary heater fuel pump	Auxiliary heater fuel pump circuit: short circuit to ground	Carry out the operation check using the Jaguar approved diagnostic system. Listen for the auxiliary heater fuel pump operating. For auxiliary heater fuel pump supply circuit tests, Refer to Pinpoint Test A .
B1D25	Heating and Ventilation - Auxiliary Heating	Auxiliary heater fuel pump	Auxiliary heater fuel pump circuit: short circuit to power Auxiliary heater fuel pump circuit: open circuit	Carry out the operation check using the Jaguar approved diagnostic system. For auxiliary heater fuel pump supply circuit tests, Refer to Pinpoint Test B .
B1D26	Heating and Ventilation - Auxiliary Heating	Combustion air fan	Combustion air fan circuit: short circuit to ground Engine overload occurred	Check the harness and connections to the auxiliary heater assembly. Clear the code and carry out the function check. If the code sets again, install a new auxiliary heater assembly. See Auxiliary Heater .
	Heating and Ventilation - Auxiliary Heating		Combustion air fan circuit: short circuit to power Combustion air fan circuit: open circuit
	Heating and Ventilation - Auxiliary Heating		Combustion air fan: blocking protection activated
	Heating and Ventilation - Auxiliary Heating		Combustion air fan: hard round-trip detection
B1D29	Heating and Ventilation - Auxiliary Heating	Auxiliary heater fails to switch on	No generation of flame, even after restart attempt Possible fuel supply issue (may be temporary, fuel 'slosh', parked on an incline, etc)	Check for other DTCs. Carry out the function check. If the function check fails with a 'no-start' DTC, access the auxiliary heater fuel pump and check the pump for 'ticking' as the function check runs. Check the fuel lines from the auxiliary heater fuel pump to the auxiliary heater assembly and from the auxiliary heater fuel pump to the fuel tank. Rectify as necessary.
B1D30	Heating and Ventilation - Auxiliary Heating	No start in test mode. No generation of flame detected in test mode	No flame detected in the combustion chamber during the function check This code will not set under normal use, only when the function check is being run. The most likely cause is lack of fuel at the auxiliary heater	Make sure there is sufficient fuel in the tank. Check the fuel lines. If the fuel line has been removed or replaced, prime the auxiliary heater as part of the function check.
B1D31	Heating and Ventilation - Auxiliary Heating	Flame detected prior to normal operation	Glow plug fault Glow plug circuit fault The resistance of the glow plug is above the value to suggest that a flame is present, but the heater is not operating	Clear the code and carry out the function check. If the code sets again, install a new auxiliary heater assembly. See Auxiliary Heater .
B1D32	Heating and Ventilation - Auxiliary Heating	Flame interruption	Flame interruption during the heating cycle (More than one instance) This suggests a fuel supply problem, most likely due to aeration of the fuel supply to the auxiliary heater May be temporary, fuel 'slosh', parked on an incline, etc	Clear the code and carry out the function check. If the function check fails with a 'no-start' DTC, access the auxiliary heater fuel pump and check the pump for 'ticking' as the function check runs. Check the fuel lines from the auxiliary heater fuel pump to the auxiliary heater assembly and from the auxiliary heater fuel pump to the fuel tank. Rectify as necessary.
B1D33	Heating and Ventilation - Auxiliary Heating	Flame interruption during normal operation
B1D34	Heating and Ventilation - Auxiliary Heating	System in lock-out mode	The system has detected a serious fault and has locked out permanently The system will not restart until the codes are cleared	Check for other DTCs identifying the cause of the lock-out. Rectify the fault(s) and carry out the function check. This DTC will also set if there is an internal overheat of the auxiliary heater (for which there is no separate DTC). Check the auxiliary coolant pump operation if this DTC is set.
B2141	Anti-Lock Control - Stability Assist - VIN Range: M45255->N52206	NVM configuration failure	No or invalid vehicle configuration information received from the ECM and stored in EEPROM	Reconfigure the ECM Refer to Module Communications Network article.
B216501 (vehicles with petrol engine only)	Parking Brake and Actuation - VIN Range: N13089->N52047	Gearshift position sensor circuit	Gearshift position sensor circuit: short circuit to power Gearshift position sensor circuit: high resistance	For gearshift position sensor tests, Refer to Pinpoint Test N .
B216501 (vehicles with diesel engine only)	Parking Brake and Actuation - VIN Range: N13089->N52047		Gearshift position sensor circuit: short circuit to ground Gearshift position sensor circuit: high resistance	For gearshift position sensor tests, Refer to Pinpoint Test AB .
B216501 (vehicles with petrol engine only)	Parking Brake and Actuation - VIN Range: N13089->N52047		Gearshift position sensor circuit: short circuit to power Gearshift position sensor circuit: high resistance	For gearshift position sensor tests, Refer to Pinpoint Test N .
B216501 (vehicles with diesel engine only)	Parking Brake and Actuation - VIN Range: N13089->N52047		Gearshift position sensor circuit: short circuit to ground Gearshift position sensor circuit: high resistance	For gearshift position sensor tests, Refer to Pinpoint Test AB .
B216512 (vehicles with petrol engine only)	Parking Brake and Actuation - VIN Range: N13089->N52047		Gearshift position sensor circuit: short circuit to ground	For gearshift position sensor tests, Refer to Pinpoint Test W .
B216512 (vehicles with diesel engine only)	Parking Brake and Actuation - VIN Range: N13089->N52047		Gearshift position sensor circuit: short circuit to power	For gearshift position sensor tests, Refer to Pinpoint Test Y .
B216512 (vehicles with petrol engine only)	Parking Brake and Actuation - VIN Range: N13089->N52047		Gearshift position sensor circuit: short circuit to ground	For gearshift position sensor tests, Refer to Pinpoint Test W .
B216512 (vehicles with diesel engine only)	Parking Brake and Actuation - VIN Range: N13089->N52047		Gearshift position sensor circuit: short circuit to power	For gearshift position sensor tests, Refer to Pinpoint Test Y .
B2197	Navigation System	TV module error	Satellite navigation system display - module or switch fault	Carry out any pinpoint tests associated with this DTC using the manufacturers approved diagnostic equipment. Check the satellite navigation system module for failure. Install a new module as required, refer to the new module installation note at the top of the DTC index.
B2198	Navigation System	Traffic Master module error	Satellite navigation system module - traffic master module fault	Refer to the appropriate electrical circuit diagrams, notes and check navigation system module communication circuit to traffic master module for failure. install a new module as required, refer to the new module installation note at the top of the DTC index.
B2199	Navigation System	VICS Module Error	Satellite navigation system module - VICS (vehicle information control system) module fault	Refer to the appropriate electrical circuit diagrams, notes and check navigation system module communication circuit to vehicle information control system module for faults. install a new module as required, refer to the new module installation note at the top of the DTC index.
B2201	Navigation System	No communication with traffic master module	Satellite navigation system module - traffic master communication fault. This DTC is logged if the module is not fitted. It must be masked out by the tester when the module is not fitted to a particular vehicle	Refer to the appropriate electrical circuit diagrams, notes and check navigation system module communication circuit to traffic master module for a fault. Install a new module as required, refer to the new module installation note at the top of the DTC index.
B2202	Navigation System	No communication to VICS module	Satellite navigation system module to vehicle information control module - communication fault. This DTC is logged if the module is not fitted. It must be masked out when it is not fitted to a particular vehicle.	Refer to the appropriate electrical diagrams, note and check navigation system module communications circuit to vehicle information control module for faults.
B2204	Navigation System	GPS Antenna connection open or short	Satellite navigation module (GPS) Antenna - open circuit or short circuit	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. refer to the appropriate electrical circuit diagrams, notes and check navigation system module (GPS) antenna for open or short circuit.
B2205	Navigation System	GPS receiver fault	Satellite navigation system module - global positioning satellite receiver fault	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. Refer to the appropriate electrical circuit diagrams, notes and check navigation system module global positioning satellite (GPS) antenna circuit. Check the antenna is not obstructed (vehicle must be outside when being tested). Replace module is fault persists.
B2206	Navigation System	Gyroscope fault	Satellite navigation system module - gyroscope fault	Carry out any pinpoint tests associated with this DTC using the manufacturer approved diagnostic system. Refer to the appropriate electrical circuit diagrams, note and check navigation system module for faults. Install a new module as required, refer to the new module/component installation note at the top of the DTC index.
B2207	Navigation System	Internal ECU ROM checksum fault	Satellite navigation system - module internal failure	Refer to the appropriate electrical circuit diagrams, notes and check the navigation system module for faults. Install a new module as required, refer to the new module/component installation note at them top of the DTC index.
B2208	Navigation System	Navigation module to display and switch module communication error	Satellite navigation system module - communication to display and switch module fault.	Refer to the appropriate electrical circuit diagrams, notes and check navigation system display and switch module communication circuit for fault
B2290	Supplemental Restraint System	Warning lamp Flashes to indicate code (see Reading restraints flash codes )	OCM circuit(s): failure PWS circuit(s): high resistance, short circuit to high voltage, short circuit to ground Belt tension sensor circuit(s): high resistance, short circuit to high voltage, short circuit to ground OCM failure PWS failure Belt tension sensor failure	For OCM, PWS and belt tension sensor circuit tests,Refer to Pinpoint Test C ..
B2290	Supplemental Restraint System		Transducers A,B,C or D circuit(s): high resistance, short circuit to high voltage, short circuit to ground Transducers A,B,C or D failure OCM failure	For transducer circuit tests,Refer to Pinpoint Test D ..
B2292*	Supplemental Restraint System		Driver seat belt pretensioner	For driver seat belt pretensioner tests,Refer to Pinpoint Test L ..
	Supplemental Restraint System		Passenger seat belt pretensioner	For passenger seat belt pretensioner tests,Refer to Pinpoint Test M ..
	Supplemental Restraint System		Driver side rear seat belt pretensioner	For driver side rear seat belt pretensioner tests,Refer to Pinpoint Test N ..
	Supplemental Restraint System		Passenger side rear seat belt pretensioner	For passenger side rear seat belt pretensioner tests,Refer to Pinpoint Test O ..
B2293*	Supplemental Restraint System		Driver air bag module circuit(s): high resistance, short circuit to high voltage, short circuit to ground Driver air bag module Clock spring failure	For driver airbag module and clockspring circuit tests,Refer to Pinpoint Test F ..
	Supplemental Restraint System		Passenger air bag module	For passenger air bag module tests,Refer to Pinpoint Test G ..
B2294*	Supplemental Restraint System		Driver side curtain air bag	For driver curtain airbag tests,Refer to Pinpoint Test J ..
	Supplemental Restraint System		Passenger curtain air bag	For passenger curtain airbag tests,Refer to Pinpoint Test K ..
	Supplemental Restraint System		Center rear seat belt pretensioner	For center rear seat belt pretensioner tests,Refer to Pinpoint Test P ..
B2295*	Supplemental Restraint System		Driver side air bag module	For driver side air bag module tests,Refer to Pinpoint Test H ..
B2295*	Supplemental Restraint System		Passenger side air bag module	For passenger side airbag module tests,Refer to Pinpoint Test I ..
B2296*	Supplemental Restraint System		Front crash sensor	For front crash sensor circuit tests,Refer to Pinpoint Test Q ..
	Supplemental Restraint System		Driver side crash sensor	For driver side front crash sensor tests,Refer to Pinpoint Test R ..
	Supplemental Restraint System		Passenger side crash sensor	For passenger side crash sensor circuit tests,Refer to Pinpoint Test S ..
	Supplemental Restraint System		Driver side rear crash sensor	For driver side rear crash sensor circuit tests,Refer to Pinpoint Test T ..
	Supplemental Restraint System		Passenger side rear crash sensor	For passenger side rear crash sensor circuit tests,Refer to Pinpoint Test U ..
B2369	Speed Control - VIN Range: N13089->N99999	Chime output circuit short to GROUND	Chime output circuit short to GROUND	For adaptive speed control chime module circuit tests, Refer to Pinpoint Test F .
B2369	Speed Control - VIN Range: M45255->N13088	Chime output circuit short to GROUND	Chime output circuit short to GROUND	For adaptive speed control chime module circuit tests, refer to Pinpoint Test F .
B2373	Speed Control - VIN Range: N13089->N99999	Forward alert switch LED 1 circuit failure	Forward alert switch failure Forward alert switch LED to ACC module circuit short to B+ Forward alert switch LED to ACC module circuit open circuit	For forward alert switch LED tests, Refer to Pinpoint Test C .
B2434	Supplemental Restraint System	Warning lamp Flashes to indicate code (see Reading restraints flash codes )	Driver seat belt buckle switch Driver seat belt buckle switch circuit(s): high resistance, short circuit to high voltage, short circuit to ground	For driver seat belt buckle switch circuit tests,Refer to Pinpoint Test W ..
B2435	Supplemental Restraint System
B2438	Supplemental Restraint System		Passenger seat belt buckle switch Passenger seat belt buckle switch circuit(s): high resistance, short circuit to high voltage, short circuit to ground	For passenger seat belt buckle switch circuit tests,Refer to Pinpoint Test X ..
B2439	Supplemental Restraint System
B2477	Speed Control - VIN Range: N13089->N99999	Module configuration failure	ACC module is not correctly configured	Configure the ACC module. Refer to the Jaguar approved diagnostic system.
	Supplemental Restraint System	Driver air bag warning lamp and passengers air bag deactivation (PAD) warning lamp ON constantly	RCM not configured	Re-configure the RCM
	Speed Control - VIN Range: M45255->N13088	Module configuration failure	ASCCM is not correctly configured	Configure the ASCCM. Refer to the Jaguar approved diagnostic system.
B2646	Navigation System	Antenna circuit open circuit #1	Satellite navigation system module navigation system antenna - open circuit	refer to the appropriate electrical diagrams, notes and check navigation systems antenna circuit for open circuit. To restore power the fault must be removed and the user must key off and on.
B2647	Navigation System	Antenna circuit open circuit #2		Refer to the appropriate electrical diagrams, notes and check navigation systems antenna circuit for open circuit. To restore power the fault must be removed and the user must key off and on.
B2648	Navigation System	Antenna circuit open circuit #3
B2649	Navigation System	Antenna circuit open circuit #4
B2650	Navigation System	Antenna circuit short circuit #1	Satellite navigation system module navigation system antenna - short to power or ground	Refer to the appropriate electrical diagrams, notes and check navigation systems antenna circuit for short to power or ground. To restore power the fault must be removed and the user must key off and on.
B2651	Navigation System	Antenna circuit short circuit #2
B2652	Navigation System	Antenna circuit short circuit #3
B2653	Navigation System	Antenna circuit short circuit #4
B2655	Navigation System	Switch and display module is defective	Satellite navigation system module - display faulty	Refer to the appropriate electrical circuit diagrams, notes and check navigation system display and switch module for failure. Install a new display module as required. Refer to the new module/component installation note at the top of the DTC index
B2656	Navigation System	DVD (Digital Versatile Disk) error	Satellite navigation system module -DVD error (DVD is integral to the navigation system module ECU)	Refer to the appropriate electrical circuit diagrams, notes and check navigation system module for faults. Install a new module as required. Refer to the new module/component installation note at the top of the DTC index
B2691	Supplemental Restraint System	Warning lamp Flashes to indicate code (see Reading restraints flash codes )	Driver seat belt buckle switch Driver seat belt buckle switch circuit(s): high resistance, short circuit to high voltage, short circuit to ground	For driver seat belt buckle switch circuit tests,Refer to Pinpoint Test W ..
B2692	Supplemental Restraint System		Passenger seat belt buckle switch Passenger seat belt buckle switch circuit(s): high resistance, short circuit to high voltage, short circuit to ground	For passenger seat belt buckle switch circuit tests,Refer to Pinpoint Test X ..
B2736	Anti-Lock Control - Stability Assist - VIN Range: M45255->N52206	Pedal travel sensor circuit failure	Pedal travel sensor circuit: open circuit, short circuit to GROUND or B+, high resistance, signal wires short circuit to each other	For pedal travel sensor tests,Refer to Pinpoint Test K ..
B2739	Anti-Lock Control - Stability Assist - VIN Range: M45255->N52206	Pedal travel sensor signal circuit failure	Connector pins bent or corroded Pedal travel sensor signal failure; open circuit, short circuit to GROUND or B+, high resistance Pedal travel sensor failure ABS/DSC module failure	For pedal travel sensor tests,Refer to Pinpoint Test K ..
B2741	Anti-Lock Control - Stability Assist - VIN Range: M45255->N52206	Yaw rate/Lateral accelerometer sensor cluster fault	Yaw rate/Lateral accelerometer sensor cluster failure	Contact dealer technical support for advice on possible yaw rate sensor failure.
B2909	Supplemental Restraint System	Warning lamp Flashes to indicate code (see Reading restraints flash codes )	OCM circuit(s): failure PWS circuit(s): high resistance, short circuit to high voltage, short circuit to ground Belt tension sensor circuit(s): high resistance, short circuit to high voltage, short circuit to ground OCM failure PWS failure Belt tension sensor failure	For OCM, PWS and belt tension sensor circuit tests,Refer to Pinpoint Test C ..
B2909	Supplemental Restraint System		Transducers A,B,C or D circuit(s): high resistance, short circuit to high voltage, short circuit to ground Transducers A,B,C or D failure OCM failure	For transducer circuit tests,Refer to Pinpoint Test D ..