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.
2003 Jaguar XJRFACTORY OEM SERVICE PROCEDURE
Connector Pin Identity Chart for AC002
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Jaguar XKR, 2006 Jaguar XK8, 2005 Jaguar XKR, 2005 Jaguar XK8, and 2004 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.
| Pin Number | Circuit | Circuit Function |
|---|---|---|
| 001 | Solar sensor | |
| 002 | Center vent servomotor feedback potentiometer | |
| 003 | RH air intake servomotor feedback potentiometer fresh / recirculation | |
| 004 | Not used | |
| 005 | Cool air bypass servomotor feedback potentiometer | |
| 006 | Coolant temperature signal | |
| 007 | RH blower motor voltage feedback | |
| 008 | RH blower motor drive signal | |
| 009 | Differential potentiometer | |
| 010 | Defrost servomotor feedback potentiometer | |
| 011 | LH air intake servomotor feedback potentiometer fresh / recirculation | |
| 012 | Not used | |
| 013 | Foot servomotor feedback potentiometer | |
| 014 | Not used | |
| 015 | LH blower motor voltage feedback | |
| 016 | LH blower motor drive signal |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.