P0481 on RAM: How to Diagnose & Fix
Cooling Fan 2 Control Circuit
1 RAM model · 1 documented issue · 1 critical · $450-$900 repair
P0481 on RAM by model: symptoms, diagnosis and fix
The single electric cooling fan module used on the ProMaster City fails in two ways: the fan control relay/circuit drops out, and the plastic fan blade separates or the motor seizes. Owners report the fan literally melting off its motor. Because the 2.4L relies entirely on this one fan at low road speed, failure shows up first in stop-and-go delivery duty as a temperature gauge climbing at idle that recovers on the highway. CarComplaints ranks cooling-fan-relay malfunction with engine overheating as the worst reported defect on the 2015 model year, with reports around 24,000-25,000 miles and repair costs near $600-650. A ProMaster City owner documented the dealer replacing the relay for a P0481 code, only to have the van overheat again about 100 miles later because the fan motor itself was the failed part. The same fan module family is used on the Jeep Renegade. Note this is a separate defect from the full-size Ram ProMaster 3.0L diesel / 3.6L gas cooling fan seizure recall - that recall does not cover the City.
Common Symptoms
- Temperature gauge climbing in stop-and-go traffic
- Coolant boiling over or steam from the hood
- A/C performance drops at idle
- Cooling fan never audibly cycles on
- Check engine light
How to Fix
Read fan-control circuit faults, test the relay/control output and confirm that the motor and blade rotate freely. Replace the complete module only when the motor/module branch is confirmed; repair power, ground or relay faults instead when those fail testing.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Mopar radiator cooling fan module 68461973AA$279
Current complete fan module for 2015-2022 Ram ProMaster City 2.4L Base/SLT; supersedes 68247205AA and 68360299AA. The separate relay/control circuit still must be tested first.
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Sources for this issue (3)
P0481 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0481 mean on a RAM?
P0481 stands for "Cooling Fan 2 Control Circuit." This code indicates the PCM detected a fault in the control circuit for cooling fan 2 (a second engine cooling/condenser fan relay or circuit). The cooling fans help regulate engine and A/C condenser temperature, especially at low speeds and idle. A fault can lead to reduced cooling performance, potential overheating in heavy load or hot conditions, and poor A/C cooling. It should be checked promptly to avoid overheating risk. On RAM it is documented across 1 model: ProMaster City.
What are the most common causes of P0481?
The most common causes of P0481 are: Faulty cooling fan relay (fan 2), Open or shorted wiring in the fan control circuit, Corroded or loose connector at relay or fan, Failed cooling fan motor, Blown fuse feeding the fan circuit, Failing PCM (less common). The specific cause varies by vehicle.
How much does it cost to fix P0481 on a RAM?
Published repair estimates on RAM range from $450 to $900 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0481 on a different make?
View P0481 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.