MyChron Troubleshooting & Error Codes Guide
AiM MyChron Troubleshooting & Error Codes Guide
This guide lists the most common MyChron 5 and MyChron 6 issues, error codes, and fixes. It is designed to help kart racers in New Zealand and Australia quickly diagnose and solve problems at the track.
1. Common MyChron problems & quick fixes
MyChron won’t turn on
- Battery fully discharged → charge for 30–60 minutes
- Faulty charger or cable → try another cable
- Damaged power button → inspect for debris
No RPM reading
- Wrong engine type selected
- Loose RPM wire
- Sensor too close to ignition coil
No temperature reading
- Sensor plugged into wrong port (CH/WT)
- Loose sensor thread or washer
- Broken sensor cable
No GPS lock
- GPS08 blocked by bodywork
- Interference from ignition
- Not enough satellites (cloudy weather)
Lap times not recording
- Track not recognised
- Start/finish line not set
- GPS signal weak
2. MyChron error codes
Below are the most common error messages and what they mean.
| Error Code | Meaning | Fix |
|---|---|---|
| E01 – Sensor Not Detected | MyChron cannot detect a connected sensor | Check cable, port, and sensor type |
| E02 – GPS Not Found | No satellite lock | Move GPS08 to clear sky view |
| E03 – RPM Signal Error | RPM signal too weak or noisy | Check engine type & wiring |
| E04 – Low Battery | Battery voltage too low | Charge MyChron fully |
| E05 – Memory Full | Internal storage is full | Download & delete sessions |
| E06 – Firmware Error | Corrupted or outdated firmware | Update via RaceStudio 3 |
3. GPS troubleshooting
GPS issues are the most common MyChron problem. Check the following:
- GPS08 mounted high with clear sky view
- Cable routed away from ignition coil
- Firmware updated
- Wait 20–40 seconds for satellite lock
4. RPM troubleshooting
RPM issues usually come from wiring or incorrect settings.
- Select correct engine type (Rotax, IAME, Vortex, Briggs, Yamaha)
- Ensure RPM wire is wrapped correctly
- Keep RPM wire away from spark plug lead
- Check for damaged insulation
5. Temperature sensor troubleshooting
- Ensure sensor is tight in the adaptor
- Check for broken wires near the sensor head
- Verify correct port (CH/WT)
- Replace sensor if readings jump or drop suddenly
6. Wi‑Fi & connectivity issues
- Move closer to the MyChron
- Disable other Wi‑Fi devices nearby
- Use USB‑C (MyChron 6) for fastest downloads
7. When to replace a sensor
Replace a sensor if you see:
- Erratic readings
- Sudden drops to zero
- Physical cable damage
- Corrosion at connectors
8. Trackside troubleshooting checklist
- Check all sensor cables
- Verify GPS lock
- Confirm engine type
- Check battery level
- Restart MyChron