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P1655 fault code: what it means

P1655: CVT to engine (FI) TMA/TMB signal line failure. CVT and engine control interaction is degraded.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. wiring between PCM and CVT control
  2. PCM fault

P1655 by make

Honda

CVT to engine (FI) TMA/TMB signal line failure. CVT and engine control interaction is degraded.

Usual causes: wiring between PCM and CVT control; PCM fault

Not sure what P1655 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.