What does code P1391 mean on Isuzu vehicles?
The ECU detects improper performance of the G-sensor affecting stability calculations.
OBD-II Code Isuzu
P1391 — Isuzu — G Sensor Performance Malfunction
The ECU detects improper performance of the G-sensor affecting stability calculations.
Common symptoms
- Limited stability control
Possible causes
- Faulty G-sensor
- incorrect sensor calibration
Initial recommendation
Perform stability control diagnostics and replace or recalibrate G-sensor as required.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Isuzu code P1391 with your vehicle's actual symptoms for more complete diagnostic guidance.
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