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1996 ACURA INTEGRA
1.8L I4 VTEC•FWD•AUTOMATIC•gas
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor490Torque1454Fluid7DTC1644Battery1Maintenance0Recalls5
P1582moderate severityPowertrain

Idle Switch/Idle Contact Circuit Malfunction

on 1996 Acura Integra 1.8L I4 VTEC · FWD

What this code means

The idle switch or contact circuit signal is faulty, so the ECM can't confirm the closed throttle position. This affects idle control.

Symptoms

  • Check engine light on
  • Unstable idle
  • Stalling

Common causes

  • Faulty idle switch/contact
  • Wiring or connector fault
  • Dirty throttle body
  • Faulty ECM

Diagnostic steps

  1. Scan and confirm P1582
  2. Inspect idle switch wiring and connector
  3. Test switch continuity at closed throttle
  4. Clean or replace throttle body as needed
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