22 Isuzu 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.
Find a Isuzu code by searching below, or browse the table. Codes on file by system:
| Code | System | Symptom | Full fix |
|---|---|---|---|
| 100.3 / 100.4 | — | Oil Pressure Sensor | View fix |
| 110.0 / 110.3 | — | Overheat / Temp Sensor | View fix |
| 1347-0 | Fuel (Common Rail) | Severe Power Loss. | View fix |
| 636.2 | — | Crank/Cam Sensor | View fix |
| P0088 | Fuel System | Loud Diesel Knock / Rail Pressure Alarm | View fix |
| P0088 | Fuel System | Engine Limp Mode / Surging | View fix |
| P0200 | Electrical / Fuel | Dead Stumble / Engine Cuts Off Over Bumps | View fix |
| P0201 - P0206 | Fuel System | Engine Misfire / Rough Idle | View fix |
| P0234 | Turbocharger | Sudden Loss of Power / Intermittent Limp | View fix |
| P0400 | Emissions / EGR | Check Engine Light / Hesitation | View fix |
| P0401 | EGR System | Check Engine Light / Sluggish Low-End | View fix |
| P0401 | Emissions / EGR | Engine Pinging / Hesitation at Low RPM | View fix |
| P0402 | Emissions | Excessive black smoke; Poor fuel economy. | View fix |
| P0404 | EGR System | Lack of Power / Black Smoke | View fix |
| P0673 | Starting / Glow Plugs | Hard Cold Start / White Smoke / Glow Plug Light Flashing | View fix |
| P1093 | Fuel System | Engine Shuts Down Under Load / Hard Restart | View fix |
| P1095 | Fuel System | Sudden Engine Shutdown | View fix |
| P1237 | Fuel System | White Smoke / Misfire Cylinder 1 | View fix |
| P1271 | Throttle | Accelerator Fault. Engine stays at idle; no throttle response. | View fix |
| P1421 | Emissions / DPF | Frequent Regens / DPF Face Loading | View fix |
| P2453 | Aftertreatment | Forced Idle / DPF Warning | View fix |
| P2463 | Aftertreatment | Flashing DPF Light / 40% Torque Derate | View fix |
Same codes keep coming back?
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