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P1580high severityPowertrain

Throttle Actuator Motor Circuit Low Voltage

on 1996 Acura Integra 1.8L I4 VTEC · FWD

What this code means

The drive-by-wire throttle actuator motor circuit reads too low, limiting throttle control. This is part of the electronic throttle system.

Symptoms

  • Check engine light on
  • Reduced power / limp mode
  • Poor throttle response

Common causes

  • Faulty throttle actuator motor
  • Wiring short to ground
  • Corroded connector
  • Faulty throttle body or ECM

Diagnostic steps

  1. Scan and confirm P1580
  2. Inspect throttle actuator wiring
  3. Measure motor circuit voltage
  4. Replace throttle body if motor faulty

Other Powertrain codes on this vehicle

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