P1393 G-Sensor Voltage High
What does P1393 mean on a Honda?
P1393 — G-Sensor Voltage High. This Honda-enhanced code applies to CR-V, Odyssey, Accord with rough-road G-sensors.
Common causes of P1393
- Failed rough-road G-sensor stuck at high voltage
- G-sensor signal wire shorted to power
- Corroded G-sensor connector with voltage bleed across pins
- Improperly mounted G-sensor preloading the sensing element
- Failing ECM sensor input circuit
How to fix P1393
- Read the G-sensor voltage PID with a Honda HDS scan tool and check for a stuck-high reading
- Inspect the sensor mounting and bracket for damage or incorrect installation
- Test the signal wire for a short to power
- Check the connector for corrosion bridging adjacent pins
- Replace the G-sensor after wiring proof, then verify voltage varies with road input