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.
GJ0014320Courtesy of JAGUAR CARS, INC.
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

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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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