P1394 G-Sensor Intermittent Voltage High
What does P1394 mean on a Honda?
P1394 — G-Sensor Intermittent Voltage High. This Honda-enhanced code applies to CR-V, Odyssey, Accord with rough-road G-sensors.
Common causes of P1394
- Loose G-sensor connector making intermittent high-resistance contact
- Chafed signal wire touching power intermittently over bumps
- G-sensor internal fault spiking high under vibration
- Corroded ground that floats high under load
- Failing ECM sensor input with an intermittent latch high
How to fix P1394
- Graph the G-sensor voltage PID on a bumpy road test and catch the spike
- Wiggle-test the harness and tap-test the sensor while watching the PID
- Inspect the connector for loose pins and the mounting for looseness
- Repair chafed sections and secure the harness away from sharp brackets
- Replace the G-sensor only if the spike persists with proven wiring and mounting