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2016 HONDA CIVIC
1.5L I4 Turbo•FWD•CVT•gas•turbo
5 active safety recalls on this vehicle — view recalls
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Repairs403Labor503Torque3385Fluid7DTC1915Battery1Maintenance0Recalls5
P0904high severityPowertrain

Gate Select Actuator Circuit Range/Performance

on 2016 Honda Civic 1.5L I4 Turbo · FWD

What this code means

The gate select actuator signal is out of the expected range or responding poorly. The transmission may not shift smoothly or reach the correct gear position.

Symptoms

  • Delayed gear engagement
  • Erratic shifting
  • Reduced performance

Common causes

  • Worn gate select actuator
  • Wiring resistance issues
  • Contaminated transmission fluid
  • Faulty transmission control module

Diagnostic steps

  1. Retrieve freeze frame data
  2. Monitor actuator position values
  3. Inspect wiring and connectors
  4. Verify fluid level and condition
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