6 John Deere diagnostic codes on file — with the full diagnosis, repair steps, and field insights open to read free, no signup required.
Disclaimer: General reference information for trained, qualified technicians only. Codes and procedures vary by model, serial number and software version. Always follow the manufacturer's service manual and your site's safety procedures. Use at your own risk. Not affiliated with or endorsed by any manufacturer.
| Code | System | Symptom | Full fix |
|---|---|---|---|
| 157.18 | Fuel System | Low Power / Engine Hesitation. | View fix |
| 97.03 / .04 | ECU | Alarm buzzer; Warning light; Possible engine shutdown. | View fix |
| P0088 | Fuel System | Engine Knock / No Start | View fix |
| SPN 157 FMI 1 | Fuel System | Extreme Power Loss / Derate | View fix |
| SPN 157 FMI 18 | Fuel System | Power Loss / Engine Stall | View fix |
| SPN 157 FMI 18 | Fuel System | Engine Stalling under Load / Power Loss | View fix |
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