What does code P1655 mean on Honda vehicles?
The ECU detects a failure in the SEAF/SEFA/TMA/TMB signal line affecting engine control.
OBD-II Code Honda
P1655 — Honda — SEAF/SEFA/TMA/TMB Signal Line Failure
The ECU detects a failure in the SEAF/SEFA/TMA/TMB signal line affecting engine control.
Common symptoms
- Engine control malfunctions
Possible causes
- Electrical signal line fault
- wiring damage
Initial recommendation
Perform system-wide electrical diagnostics and repair signal lines.
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 Honda code P1655 with your vehicle's actual symptoms for more complete diagnostic guidance.
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