What does code P1681 mean on Honda vehicles?
The ECU detects a low input signal from FI signal A of the automatic transaxle.
OBD-II Code Honda
P1681 — Honda — Automatic Transaxle FI Signal A Low Input
The ECU detects a low input signal from FI signal A of the automatic transaxle.
Common symptoms
- Incorrect gear shifts
Possible causes
- Open circuit
- high resistance wiring
Initial recommendation
Inspect FI signal A circuit and restore proper signal levels.
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
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