U3501
Control Module Input Power A Circuit Low
U3501 is an OBD-II diagnostic trouble code meaning: Control Module Input Power A Circuit Low. Common causes: wiring harness damage, oxidation or loosening of contacts. Estimated repair cost: $6–56.
Symptoms
- Unstable engine operation
- Intermittent failures of electronic systems
- Check Engine Light Is On
- Problems starting the engine
- Malfunctions of control modules
Causes
- Wiring harness damage
- Oxidation or loosening of contacts
- Power relay fault
- Alternator or battery problems
- Blown fuse
How to Fix
- Check battery and generator voltage
- Inspect the wiring harness for damage
- Check the condition of contacts and terminals
- Check and replace fuses if necessary
- Check the operation of the power relay
Related codes
Error U3501 by Vehicle Brand
FAQ
What does the U3501 code mean?
U3501 is an OBD-II diagnostic trouble code that indicates: Control Module Input Power A Circuit Low
What causes a U3501 error code?
The most common causes of U3501 include: Wiring harness damage; Oxidation or loosening of contacts; Power relay fault; Alternator or battery problems.
How do I fix a U3501 diagnostic trouble code?
To fix U3501: Check battery and generator voltage. Inspect the wiring harness for damage. Check the condition of contacts and terminals. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U3501?
Yes, but get it checked soon
How much does it cost to fix U3501?
The estimated repair cost for U3501 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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