U302E
Ignition Output On
U302E is an OBD-II diagnostic trouble code meaning: Ignition Output On. Common causes: ignition relay malfunction, open or short circuit in the ignition circuit. Estimated repair cost: $6–167.
Symptoms
- Difficulty starting the engine
- Engine stalls after starting
- Some electrical systems do not work
- Check engine light is on
Causes
- Ignition relay malfunction
- Open or short circuit in the ignition circuit
- Problems with the engine control module (ECU)
- Corrosion of contacts in connectors
How to Fix
- Check the condition of the ignition relay
- Inspect the wiring harness for damage
- Check the contacts in the connectors for corrosion
- Scan the control module for errors
- If necessary, replace the ignition relay or ECU
Related codes
Error U302E by Vehicle Brand
FAQ
What does the U302E code mean?
U302E is an OBD-II diagnostic trouble code that indicates: Ignition Output On
What causes a U302E error code?
The most common causes of U302E include: Ignition relay malfunction; Open or short circuit in the ignition circuit; Problems with the engine control module (ECU); Corrosion of contacts in connectors.
How do I fix a U302E diagnostic trouble code?
To fix U302E: Check the condition of the ignition relay. Inspect the wiring harness for damage. Check the contacts in the connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U302E?
Limited driving only, diagnose soon
How much does it cost to fix U302E?
The estimated repair cost for U302E is $6–167. Actual cost depends on your vehicle, location, and labor rates.
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