U350F: Control Module Cooling Fan Circuit Range/Performance
Severity
Medium
System
Vehicle Systems
What Does U350F Mean?
U350F is a diagnostic trouble code indicating: Control Module Cooling Fan Circuit Range/Performance. This code relates to the vehicle systems system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Symptoms of U350F
- ⚠️ Check Engine Light (MIL) illuminated
- ⚠️ Control Module Cooling Fan not operating within expected parameters
- ⚠️ Reduced efficiency or performance of related system
- ⚠️ System warning light illuminated
Common Causes
- 🔍 Control Module Cooling Fan degraded or contaminated
- 🔍 Mechanical wear or binding in Control Module Cooling Fan
- 🔍 Incorrect Control Module Cooling Fan installed (wrong part number)
- 🔍 Related system mechanical issue affecting Control Module Cooling Fan readings
Frequently Asked Questions
What does U350F mean?
U350F indicates: Control Module Cooling Fan Circuit Range/Performance. The vehicle's computer has detected that the Control Module Cooling Fan is not operating within its expected parameters and stored this diagnostic trouble code.
Can I drive with code U350F?
You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with U350F for extended periods may cause additional problems.
How much does it cost to fix U350F?
Repair costs for U350F typically range from $50 to $250, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.
What To Do Next
Possible Fixes
- 🔧 Inspect and clean Control Module Cooling Fan
- 🔧 Replace degraded Control Module Cooling Fan
- 🔧 Check for related mechanical issues affecting readings
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.
Related Codes
U3500
Control Module Input Power A Circuit Range/Performance
U3501
Control Module Input Power A Circuit Low
U3502
Control Module Input Power A Circuit High
U3503
Control Module Input Power A Circuit Intermittent/Erratic
U3504
Control Module Input Power B Circuit Range/Performance
U3505
Control Module Input Power B Circuit Low
U3506
Control Module Input Power B Circuit High
U3507
Control Module Input Power B Circuit Intermittent/Erratic
U3508
Control Module Input Power C Circuit Range/Performance
U3509
Control Module Input Power C Circuit Low