U0901
Invalid Data from Ion Sense Module
U0901 is an OBD-II diagnostic trouble code meaning: Invalid Data from Ion Sense Module. Common causes: ion sensing module malfunction, damage to the wiring harness to the module. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Unstable engine operation at idle
- Increased fuel consumption
- Possible misfires
Causes
- Ion sensing module malfunction
- Damage to the wiring harness to the module
- Poor contact in module connectors
- Module grounding problems
- Errors in ECU software
How to Fix
- Check the integrity of the wiring harness to the module
- Check the quality of connections and contacts in the connectors
- Check module grounding
- Scan the system for other errors
- If necessary, replace the ion sensing module
Related codes
Error U0901 by Vehicle Brand
FAQ
What does the U0901 code mean?
U0901 is an OBD-II diagnostic trouble code that indicates: Invalid Data from Ion Sense Module
What causes a U0901 error code?
The most common causes of U0901 include: Ion sensing module malfunction; Damage to the wiring harness to the module; Poor contact in module connectors; Module grounding problems.
How do I fix a U0901 diagnostic trouble code?
To fix U0901: Check the integrity of the wiring harness to the module. Check the quality of connections and contacts in the connectors. Check module grounding. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0901?
Yes, but get it checked soon
How much does it cost to fix U0901?
The estimated repair cost for U0901 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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