P035A
Ignition E Control Signal Circuit/Open
Generic OBD-II
Common symptoms
What you'll notice
- Check and ensure the ignition switch is functioning properly.
- Inspect the ignition control module for any signs of damage or malfunction.
- Verify the wiring harness for any loose or disconnected connections in the ignition E control circuit.
- Test the ignition E control signal circuit for continuity and repair any issues found.
- If all else fails, consider replacing the ignition control module.
Common causes
Most likely first
- Faulty ignition coil
- Damaged ignition control module
- Loose or corroded wiring in the ignition system
- Faulty ignition switch
- Defective ignition key or immobilizer system
How to diagnose & fix
Work through it in order
- Engine misfires or stalls
- Difficulty starting the engine
- Reduced fuel efficiency
- Vehicle may experience rough idle
- Loss of power while accelerating
Read & clear P035A yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.