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2017 HONDA CIVIC
1.5L I4 Turbo•FWD•CVT•gas•turbo
6 active safety recalls on this vehicle — view recalls
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Repairs403Labor504Torque3392Fluid7DTC1171Battery1Maintenance0Recalls6
P1488moderate severityPowertrain

EGR Valve Lift Sensor Circuit Low Voltage

on 2017 Honda Civic 1.5L I4 Turbo · FWD

What this code means

The EGR valve lift sensor signal is too low, so the ECM can't verify EGR valve position. This affects exhaust gas recirculation control.

Symptoms

  • Check engine light on
  • Rough idle
  • Increased emissions

Common causes

  • Faulty EGR lift sensor
  • Wiring short to ground
  • Corroded connector
  • Faulty ECM

Diagnostic steps

  1. Scan and confirm P1488
  2. Inspect EGR sensor wiring and connector
  3. Measure sensor signal voltage
  4. Replace EGR valve/sensor if faulty
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