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.
2008 Jeep Commander 4WD V6-3.7LFACTORY OEM SERVICE PROCEDURE
Control-A/C-Heater-Rear
Component ID: 84
Component : CONTROL-A/C-HEATER-REAR
Connector:
Name : CONTROL-A/C-HEATER-REAR C1
Color : NATURAL
# of pins : 8
Pin Circuit Description
1 F850 20LB/PK FUSED RUN RELAY OUTPUT
2 C54 20YL REAR BLEND DOOR CONTROL
3 C53 20LG/BK REAR MODE DOOR CONTROL
4 Z908 20BK GROUND
5 E2 20OR/BR PANEL LAMPS DRIVER
6 - -
7 - -
8 - -
Connector:
Name : CONTROL-A/C-HEATER-REAR C2
Color : NATURAL
# of pins : 6
Pin Circuit Description
1 C153 14DB/VT REAR BLOWER HIGH SPEED
2 C152 16LB REAR BLOWER MEDIUM SPEED
3 C151 16DB/BR REAR BLOWER LOW SPEED
4 Z908 14BK GROUND
5 - -
6 - -
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:
- • 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.
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