Mitsubishi C1394
shooting procedure. . 1. Park the vehicle on a level surface with tires and steering wheel positioned in a straight ahead direction. 2. Turn the electric motor switch to the "ON" p
Quick answer
For U.S. 2012–2017 Mitsubishi i-MiEV vehicles, verified evidence links C1394 to the steering wheel sensor calibration procedure referenced after steering wheel sensor (column switch assembly) work. The supplied evidence does not establish a fault definition for C1394.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does C1394 mean?
For U.S. 2012–2017 Mitsubishi i-MiEV vehicles, verified evidence links C1394 to the steering wheel sensor calibration procedure referenced after steering wheel sensor (column switch assembly) work. The supplied evidence does not establish a fault definition for C1394.
2. Technical explanation
Mitsubishi TSB-23-35-004 states that, following steering wheel sensor (column switch assembly) replacement, the stored steering wheel sensor neutral position must be updated and the steering-angle calibrated value in the ASC-ECU must be reset. The bulletin cautions technicians to first check whether a steering-wheel-sensor-related DTC is stored in the ASC-ECU. If a DTC other than C1394 is stored, the applicable troubleshooting procedure for that DTC is to be followed. The supplied excerpt includes initial calibration setup: park on a level surface with the tires and steering wheel straight ahead; turn the electric motor switch ON; then turn it to LOCK (OFF).
3. What system is affected?
The verified source references the steering wheel sensor (column switch assembly) and the ASC-ECU steering-angle calibration value. A broader system name is not yet established by verified evidence.
4. How serious is this code?
Unknown. The supplied verified evidence does not assign a severity level to C1394.
5. Symptoms you may notice
- Not yet established by verified evidence.
6. Possible causes
- Steering wheel sensor (column switch assembly) replacement is specifically referenced as a situation requiring neutral-position update and steering-angle calibration reset.
- Any additional cause of C1394 is not yet established by verified evidence.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Park the vehicle on a level surface with the tires and steering wheel in the straight-ahead position when preparing for the referenced calibration procedure.
- Have steering-wheel-sensor-related DTCs in the ASC-ECU evaluated by a qualified Mitsubishi service provider.
- Do not assume C1394 has the same troubleshooting path as another stored DTC; the bulletin states that DTCs other than C1394 should be inspected according to their respective procedures.
10. Step-by-step troubleshooting
- Check whether a steering-wheel-sensor-related DTC is stored in the ASC-ECU.
- For the referenced calibration setup, park on a level surface with the tires and steering wheel straight ahead.
- Turn the electric motor switch to ON, then to LOCK (OFF), as stated in the supplied bulletin excerpt.
- The remaining diagnostic and calibration steps are not provided in the supplied verified evidence.
11. When to contact service
Service evaluation is appropriate if C1394 is present, particularly after steering wheel sensor (column switch assembly) replacement. The verified evidence does not establish whether service is immediately required.
12. What the service center may check
- Check ASC-ECU for steering-wheel-sensor-related DTCs.
- If a DTC other than C1394 is present, follow that DTC's applicable troubleshooting procedure.
- Update the neutral position stored in the steering wheel sensor after steering wheel sensor replacement.
- Reset the steering-angle calibrated value stored in the ASC-ECU after steering wheel sensor replacement.
13. Possible repair or resolution
- Following steering wheel sensor (column switch assembly) replacement, Mitsubishi TSB-23-35-004 calls for updating the steering wheel sensor neutral position and resetting the steering-angle calibrated value in the ASC-ECU.
- Whether a component replacement or another repair resolves C1394 is not yet established by verified evidence.
14. Affected vehicles
- Mitsubishi i-MiEV · 2012–2017 · US
15. Related TSBs / service bulletins
- Mitsubishi TSB-23-35-004, published November 9, 2023; NHTSA Manufacturer Communication PDF 10246263. It references C1394 in steering wheel sensor calibration guidance for the applicable vehicle range.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: Mitsubishi TSB-23-35-004, available through NHTSA Manufacturer Communication PDF 10246263: https://static.nhtsa.gov/odi/tsbs/2023/MC-10246263-0001.pdf
19. Frequently asked questions
What does C1394 mean on a Mitsubishi i-MiEV?
The supplied evidence associates C1394 with steering wheel sensor calibration guidance, but does not provide a complete fault definition.
Which vehicles are covered by the verified evidence?
Mitsubishi i-MiEV, model years 2012 through 2017, U.S. market.
What is required after steering wheel sensor replacement?
The bulletin states that the steering wheel sensor neutral position must be updated and the steering-angle calibrated value in the ASC-ECU must be reset.
Can I drive or charge with C1394?
Not yet established by verified evidence.