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2023 HONDA ACCORD
1.5L I4 Turbo•FWD•CVT•gas•turbo
5 active safety recalls on this vehicle — view recalls
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Repairs402Labor490Torque3338Fluid7DTC1173Battery1Maintenance0Recalls5
P1794high severityPowertrain

Vehicle Speed Sensor or Countershaft Speed Sensor Circuit

on 2023 Honda Accord 1.5L I4 Turbo · FWD

What this code means

The circuit for the vehicle or countershaft speed sensor is malfunctioning. This disrupts shift timing and transmission control.

Symptoms

  • Erratic or harsh shifting
  • Speedometer malfunction
  • Transmission slipping

Common causes

  • Faulty countershaft speed sensor
  • Damaged sensor wiring or connector
  • Metal debris on sensor tip
  • Faulty PCM

Diagnostic steps

  1. Scan for stored codes
  2. Inspect sensor wiring and connector
  3. Test sensor signal output
  4. Replace sensor if out of spec
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Other Powertrain codes on this vehicle

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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