Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Land Rover LR4 BaseFACTORY OEM SERVICE PROCEDURE
Control Diagram
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.
| Item Number | Description |
|---|---|
| 1 | Face and feet distribution motor |
| 2 | LH temperature blend motor |
| 3 | Recirculation motor |
| 4 | Windshield distribution motor |
| 5 | RH temperature blend motor |
| 6 | A/C compressor solenoid valve |
| 7 | Sunlight sensor |
| 8 | Pollution sensor |
| 9 | Refrigerant pressure sensor |
| 10 | In-vehicle temperature sensor (all except Japan) or in-vehicle temperature and humidity sensor (Japan only) |
| 11 | Ambient air temperature sensor |
| 12 | Evaporator temperature sensor |
| 13 | ATC module |
| 14 | ECM |
| 15 | ECT sensor |
| 16 | Instrument cluster |
| 17 | Blower control module |
| 18 | BJB (battery junction box) |
| 19 | CJB |
| 20 | Blower |
| 21 | Integrated control Panel |
NOTE:
AΒ
= Hardwired connections; DΒ
= High speed controller area network (CAN) bus; NΒ
= Medium speed controller area network (CAN) bus
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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