LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1997 >> Escort Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Idle Control System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Idle Control System

  1. Check Idle Air Control (IAC) Solenoid Resistance  Turn ignition off. Disconnect IAC wiring harness connector. Connect DVOM positive lead to VPWR (White/Red wire) terminal of IAC solenoid wiring harness connector. Connect DVOM negative lead to IAC terminal. If resistance is 6-13 ohms, go to next step. If resistance is not 6-13 ohms, replace IAC valve assembly.
  2. Check IAC Solenoid Internal Short To Case  Turn ignition off. Measure resistance between each wiring harness connector terminal and IAC housing. If either resistance is less than 10,000 ohms, replace IAC solenoid assembly. If each resistance is 10,000 ohms or more, IAC solenoid is okay. If fault is still present, go to CIRCUIT TEST KE in TESTS W/CODES article for additional testing.
scientia non olet · About LEMON Manuals