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.
2002 Chrysler Voyager ECFACTORY OEM SERVICE PROCEDURE
Front Blower Runs At Only One Speed
NOTE:
After making any repairs, perform BODY VERIFICATION TESTÂ under VERIFICATION TESTS.
- Turn the ignition off. Disconnect the Front Blower Power Module C1 harness connector. See Figure. Disconnect the Automatic Temperature Control Module C2 harness connector. See Figure. Measure the resistance between ground and the Blower Motor Control circuit. If the resistance is below 10K ohms, repair the Blower Motor Control circuit for a short to ground. With the DRBIII®, reset the ATC after repair/replacement is complete. If the resistance is above 10K ohms, go to the next step.
NOTE:
When the blower control switch is set to LO speed, the ATC Module provides a short duty cycle (less time grounding the signal voltage).
Factory Service Tools
Use the Manual With the Right Hardware
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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.