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Home >> Eagle >> 1993 >> Talon ES, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Engine Controls - System/Component Tests >> Idle Speed Control Servo & Motor Position Sensor (1.8L)

Idle Speed Control Servo & Motor Position Sensor (1.8L)

  1. Motor position sensor is integral with idle speed control servo, located on throttle body. Disconnect motor position sensor connector. Using an ohmmeter, measure resistance between motor position sensor terminals No. 2 and 3. See Figure . Ohmmeter should read 4000-6000 ohms.
  2. If resistance is not within specification, replace idle speed control servo. If resistance is within specification, go to next step.
    CAUTION: When activating idle speed control plunger, DO NOT apply more than 6 volts. Higher voltage may cause damage to servo gears.
  3. Disconnect idle speed control servo connector. Connect a 6-volt power source between idle speed control servo terminals No. 1 and 2 to activate idle speed control servo plunger. See Figure .
  4. Using an ohmmeter, measure resistance between motor position sensor terminals No. 3 and 5 when idle speed control servo plunger is activated. Ohmmeter should read 4000-6000 ohms.
  5. Replace idle speed control servo if resistance is not within specification, or if idle speed control servo plunger does not extend and retract smoothly.
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