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.
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HOMESERVICE MANUALSCHRYSLER2003300M V6-3.5L VIN MREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGRELAYS AND MODULES - HVACCONTROL MODULE HVACSERVICE AND REPAIR
2003 Chrysler 300M V6-3.5L VIN M
Control Module HVAC: Service and Repair
2003 Chrysler 300M V6-3.5L VIN MSECTION Service and Repair
POWER MODULE
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN AN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
1. Open hood and disconnect the negative battery cable remote terminal from the remote battery post.
2. Remove lower right underpanel silencer/duct.
3. Disconnect wiring connector to the power module.
4. Remove the power module retaining screws.
5. Pull the power module out of HVAC housing.
INSTALLATION
1. Install the power module in the HVAC housing.
2. Install the two screws that secure the power module to the HVAC housing and tighten to 2.2 Nm (20 in. lbs.).
3. Plug in the harness connector to the power module.
4. Install the lower right underpanel silencer/ duct.
5. Connect the negative battery cable remote terminal to the remote battery post.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN AN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
1. Open hood and disconnect the negative battery cable remote terminal from the remote battery post.
2. Remove lower right underpanel silencer/duct.
3. Disconnect wiring connector to the power module.
4. Remove the power module retaining screws.
5. Pull the power module out of HVAC housing.
INSTALLATION
1. Install the power module in the HVAC housing.
2. Install the two screws that secure the power module to the HVAC housing and tighten to 2.2 Nm (20 in. lbs.).
3. Plug in the harness connector to the power module.
4. Install the lower right underpanel silencer/ duct.
5. Connect the negative battery cable remote terminal to the remote battery post.
RENDER: 1.0x
NO RELATED
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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.