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Fig 1: Automatic Temperature Control Diagram

Courtesy of JAGUAR CARS, INC.

Item Number	Description
1	Battery
2	Control switches
3	Refrigerant pressure sensor
4	Ambient air temperature sensor
5	Pollution sensor
6	Engine Control Module (ECM)
7	Instrument cluster
8	Cabin humidity and temperature sensor
9	A/C compressor solenoid
10	RH temperature blend stepper motor
11	Windshield distribution (defrost) stepper motor
12	Face/feet distribution stepper motor
13	LH temperature blend stepper motor
14	Air intake servo motor
15	Blower motor
16	Blower motor control module
17	Evaporator temperature sensor
18	ATC module
19	CJB
20	Sunload/Light sensor
21	Mega fuse (175A)

NOTE: A = Hardwired; D = High speed controller area network (CAN) bus; N = Medium speed controller area network (CAN) bus; O = local interconnect network (LIN) bus

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Control Diagram

Use the Manual With the Right Hardware

When to See a Mechanic