Climate Control Module (HVAC)
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 Climate Control Module, for additional Diagnosis and Testing information refer to the relevant Diagnosis and Testing Information. Refer to CLIMATE CONTROL SYSTEM .
| DTC | Description | Possible Causes | Action |
|---|---|---|---|
| P0530-11 | A/C Refrigerant Pressure Sensor A Circuit - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check A/C refrigerant pressure sensor circuit for short to ground. Check and install a new A/C refrigerant pressure sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| P0530-15 | A/C Refrigerant Pressure Sensor A Circuit - Circuit short to battery or open |
|
Refer to the electrical circuit diagrams and check A/C refrigerant pressure sensor circuit for short to power, open circuit. Check and install a new A/C refrigerant pressure sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| P0645-11 | A/C Clutch Relay Control Circuit - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check A/C clutch relay control circuit for short to ground |
| C1B14-13 | Sensor Supply Voltage A - Circuit open |
|
Refer to the electrical circuit diagrams and check Fresh - Recirculated air mode motor circuit for short to ground, open circuit. Check and install a new Fresh - Recirculated air mode motor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| C1B15-13 | Sensor Supply Voltage B - Circuit open |
|
Refer to the electrical circuit diagrams and check Fresh - Recirculated air mode motor circuit for open circuit. Refer to the electrical circuit diagrams and check evaporator sensor circuit for open circuit. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1030-01 | Left Front Seat Heater - General Electrical Failure |
|
Refer to the electrical circuit diagrams and check left front seat heater circuit for short to ground, short to power, open circuit. Check and install a new left front seat heater element as required. Check and install a new left front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1030-4B | Left Front Seat Heater - over temperature |
|
Check and install a new left front heater element as required. Check and install a new left front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1030-87 | Left Front Seat Heater - missing message |
|
Refer to the electrical circuit diagrams and check left front seat heater LIN circuit for short to ground, short to power, open circuit. Check and install a new left front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1032-01 | Right Front Seat Heater - General Electrical Failure |
|
Refer to the electrical circuit diagrams and check right front seat heater circuit for short to ground, short to power, open circuit. Check and install a new right front seat heater element as required. Check and install a new right front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1032-4B | Right Front Seat Heater - over temperature |
|
Check and install a new right front heater element as required. Check and install a new right front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1032-87 | Right Front Seat Heater - missing message |
|
Refer to the electrical circuit diagrams and check right front seat heater LIN circuit for short to ground, short to power, open circuit. Check and install a new right front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1034-01 | Left Front Seat Heater Element - General Electrical Failure |
|
Refer to the electrical circuit diagrams and check left front seat heater circuit for short to ground, short to power, open circuit. Check and install a new left front seat heater element as required. Check and install a new left front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1036-01 | Right Front Seat Heater Element - General Electrical Failure |
|
Refer to the electrical circuit diagrams and check right front seat heater circuit for short to ground, short to power, open circuit. Check and install a new right front seat heater element as required. Check and install a new right front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1038-01 | Left Front Seat Heater Sensor - General Electrical Failure |
|
Refer to the electrical circuit diagrams and check left front seat heater circuit for short to ground, short to power, open circuit. Check and install a new right front seat heater as required. Check and install a new left front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B103A-01 | Right Front Seat Heater Sensor - General Electrical Failure |
|
Refer to the electrical circuit diagrams and check right front seat heater circuit for short to ground, short to power, open circuit. Check and install a new right front seat heater as required. Check and install a new right front heated seat module as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1081-00 | Left Temperature Damper Motor - No sub type information |
|
Check and remove any obstruction in left hand temperature distribution door. Refer to the electrical circuit diagrams and check left hand temperature distribution motor circuit for short to ground, short to power, open circuit. Check and install a new left hand temperature distribution door as required. Check and install a new left hand temperature distribution motor as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1081-49 | Left Temperature Damper Motor - internal electronic failure |
|
Check and install a new left hand temperature distribution motor as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1082-00 | Right Temperature Damper Motor - No sub type information |
|
Check and remove any obstruction in right hand temperature distribution door. Refer to the electrical circuit diagrams and check right hand temperature distribution motor circuit for short to ground, short to power, open circuit. Check and install a new right hand temperature distribution door as required. Check and install a new right hand temperature distribution motor as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1082-49 | Right Temperature Damper Motor - internal electronic failure |
|
Check and install a new right hand temperature distribution motor as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1083-01 | Recirculation Damper Motor - General Electrical Failure |
|
Refer to the electrical circuit diagrams and check recirculation motor circuit for short to power, open circuit. Check recirculation motor has not jammed or been obstructed. Check and install a new recirculation motor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1085-00 | Defroster Damper Motor - No sub type information |
|
Check and remove any obstruction in windshield distribution door. Refer to the electrical circuit diagrams and check windshield distribution motor circuit for short to ground, short to power, open circuit. Check and install a new windshield distribution door as required. Check and install a new windshield distribution motor as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1085-49 | Defroster Damper Motor - internal electronic failure |
|
Check and install a new windshield distribution motor as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1086-00 | Air Distribution Damper Motor - No sub type information |
|
Check and remove any obstruction in face and feet distribution door. Refer to the electrical circuit diagrams and check face and feet distribution motor circuit for short to ground, short to power, open circuit. Check and install a new face and feet distribution door as required. Check and install a new face and feet distribution motor as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1086-49 | Air Distribution Damper Motor - internal electronic failure |
|
Check and install a new face and feet distribution motor as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1087-88 | LIN Bus "A" - bus off |
|
Refer to the electrical circuit diagrams and check LIN bus "A" circuit for short to ground, short to power, high resistance, open circuit. Check and install new front actuators as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B10BE-11 | Solar Sensor - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check solar sensor circuit for short to ground. Check and install a new solar sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B11EE-01 | A/C Compressor - General Electrical Failure |
|
Refer to the electrical circuit diagrams and check refrigerant solenoid valve circuit for short to ground, short to each other. Check and install a new refrigerant solenoid valve as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B11F0-11 | Air Intake Damper Position Sensor - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check recirculation motor circuit for short to ground. Check and install a new recirculation motor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B11F0-15 | Air Intake Damper Position Sensor - Circuit short to battery or open |
|
Refer to the electrical circuit diagrams and check recirculation motor circuit for short to power, open circuit. Check and install a new recirculation motor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B11FF-84 | A/C Refrigerant Pressure - signal below allowable range |
|
Using the manufacturer approved diagnostic system, datalogger. Check and review Climate control system / Air conditioning / External ambient temperature. If External ambient temperature is less than (plus) 5 °C this DTC should be ignored and cleared. If External ambient temperature shows greater than (plus) 5 °C check the refrigerant system using a suitable charging station. Check and install a new refrigerant pressure sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module / component is suspect |
| B11FF-85 | A/C Refrigerant Pressure - signal above allowable range |
|
Check the refrigerant system using a suitable charging station. Check the condenser and pipework for damage or restriction. Check and install a new Refrigerant pressure sensor as required. Check the air conditioning fan for correct operation. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module / component is suspect |
| B12B2-11 | AUX Heater Coolant Diverter Valve - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check Auxiliary heater coolant diverter valve circuit for short to ground. Check and install a new Auxiliary heater coolant diverter valve as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A59-11 | Sensor 5 Volt Supply - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check sensor 5 volt supply circuit for short to ground. Check and install a new Refrigerant pressure sensor as required. Check and install a new Fresh - Recirculated air mode motor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A59-13 | Sensor 5 Volt Supply - Circuit open |
|
Refer to the electrical circuit diagrams and check sensor 5 volt supply circuit for open circuit. Check and install a new Refrigerant pressure sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A60-11 | Pollution Sensor - Hydrocarbon - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check air quality sensor circuit for short to ground. Check and install a new air quality sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A61-11 | Cabin Temperature Sensor - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check cabin temperature sensor circuit for short to ground. Check and install a new cabin temperature sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A61-15 | Cabin Temperature Sensor - Circuit short to battery or open |
|
Refer to the electrical circuit diagrams and check cabin temperature sensor circuit for short to power, open circuit. Check and install a new cabin temperature sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A63-11 | Right Solar Sensor - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check right solar sensor circuit for short to ground. Check and install a new solar sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A64-11 | Left Solar Sensor - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check left solar sensor circuit for short to ground. Check and install a new solar sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A67-13 | Sensor Ground - Circuit open |
|
Refer to the electrical circuit diagrams and check sensor circuit for open circuit. DTCs B1A61-15, B1A59-13 and P0530-15 will also be logged. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A69-11 | Humidity Sensor -circuit short to ground |
|
Refer to the electrical circuit diagrams and check humidity sensor circuit for short to ground. Check and install a new combined cabin temperature & humidity sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1A69-15 | Humidity Sensor - Circuit short to battery or open |
|
Refer to the electrical circuit diagrams and check humidity sensor circuit for short to power, open circuit. Check and install a new combined cabin temperature & humidity sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1B62-11 | Pollution Sensor - NOx - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check air quality sensor circuit for short to ground. Check and install a new air quality sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1B71-11 | Evaporator Temperature Sensor - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check evaporator temperature sensor circuit for short to ground. Check and install a new evaporator temperature sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1B71-15 | Evaporator Temperature Sensor - Circuit short to battery or open |
|
Refer to the electrical circuit diagrams and check evaporator temperature sensor circuit for short to power, open circuit. Check and install a new evaporator temperature sensor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| B1B72-11 | LIN Bus #1 Power Supply Circuit - Circuit short to ground |
|
Refer to the electrical circuit diagrams and check LIN bus 1 circuit for short to ground. Check and install a new face and feet distribution motor as required. Check and install a new windshield distribution motor as required. Check and install a new left hand temperature distribution motor as required. Check and install a new right hand temperature distribution motor as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U0010-88 | Medium Speed CAN Communication Bus - bus off |
|
Refer to the electrical circuit diagrams and check the power and ground connections to the module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U0140-87 | Lost Communication With Body Control Module - missing message |
|
Refer to the electrical circuit diagrams and check the power and ground connections to the module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network. Check and install a new Central Junction Box as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U0166-87 | Lost Communication With Auxiliary Heater Control Module - missing message |
|
Refer to the electrical circuit diagrams and check the power and ground connections to the module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network. Check and install a new Fuel Fired Booster Heater Control Module as required. Check and install a new Central Junction Box as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U0256-87 | Lost Communication With Front Controls Interface Module "A" - missing message |
|
Refer to the electrical circuit diagrams and check the power and ground connections to the module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network. Check and install a new Front Controls Interface Module "A" as required. Check and install a new Central Junction Box as required. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U0300-00 | Internal Control Module Software Incompatibility - No sub type information |
|
Re-configure the Central Junction Box using the manufacturer approved diagnostic system, clear DTC and re-test. Re-configure the Climate Control Module using the manufacturer approved diagnostic system. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U0422-86 | Invalid Data Received From Body Control Module - Signal invalid |
|
Check Car Configuration File is correct. Re-configure the Central Junction Box using the manufacturer approved diagnostic system. Clear Climate Control Module DTC and re-test. Check and install a new Central Junction Box as required. Refer to the warranty policy and procedures information if a module is suspect |
| U0425-86 | Invalid Data Received From Auxiliary Heater Control Module - Signal invalid |
|
Re-configure the Fuel Fired Booster Heater Control Module using the manufacturer approved diagnostic system, clear DTC and re-test. Check and install a new Fuel Fired Booster Heater Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U0557-86 | Invalid Data Received From Front Controls Interface Module "A" - Signal invalid |
|
Re-configure the Front Controls Interface Module "A" using the manufacturer approved diagnostic system, clear DTC and re-test. Check and install a new Front Controls Interface Module "A" as required. Refer to the warranty policy and procedures information if a module is suspect |
| U1A14-49 | CAN Initialization Failure - internal electronic failure |
|
Refer to the electrical circuit diagrams and check the power and ground connections to the module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the CAN network. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U3000-55 | Control Module - not configured |
|
Check Car Configuration File is correct. Check VIN is correct. Re-configure the Central Junction Box using the manufacturer approved diagnostic system, clear DTC and re-test. Re-configure the Climate Control Module using the manufacturer approved diagnostic system. Check and install a Central Junction Box as required. Refer to the warranty policy and procedures information if a module is suspect |
| U3000-87 | Control Module - missing message |
|
Check the Climate Control Module for related DTCs and refer to the relevant DTC index. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |
| U3002-81 | Vehicle Identification Number - invalid serial data received |
|
Check the Climate Control Module for related DTCs and refer to the relevant DTC index. Re-configure the Central Junction Box using the manufacturer approved diagnostic system, clear DTC and re-test. Check and install a new Climate Control Module as required. Refer to the warranty policy and procedures information if a module is suspect |