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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHRYSLER1999300M V6-3.5L VIN GREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - COOLING SYSTEMRADIATOR COOLING FAN CONTROL MODULEDESCRIPTION AND OPERATION
1999 Chrysler 300M V6-3.5L VIN G
Radiator Cooling Fan Control Module: Description and Operation
1999 Chrysler 300M V6-3.5L VIN GSECTION Description and Operation
The Cooling Fan Module refers to the Cooling Fans and the mounting assembly, not a cooling fan control device.
Fan control is accomplished two ways. A pressure transducer on the air conditioning compressor discharge line sends a signal to the Powertrain Control Module (PCM) which will activate both fans if necessary. In addition to this control, the fan is turned on based on coolant temperature sensor output to the PCM. The PCM switches the fans on through the fan relays. Switching through the PCM provides fan control for the following conditions.
- Regardless of coolant temperature the fan will not run during cranking until the engine starts.
- Fans will run in accordance with following operation chart.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.