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Home >> Chrysler >> 2000 >> Sebring LXi >> Repair and Diagnosis >> Engine Performance >> System >> Engine Self-Diagnostics - Except Convertible >> Diagnostic Tests >> Test NTC-41: Intake Air Temperature Sensor Circuit
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Test NTC-41: Intake Air Temperature Sensor Circuit

  1. Turn ignition off. Disconnect IAT sensor harness connector. IAT sensor is located on right side of intake plenum. See Figure. Measure resistance between terminals at IAT sensor. Resistance should be 9-11 k/ohms at 77°F (25°C) and .6-.8 k/ohms at 212°F (100°C). If resistances are as specified, go to next step. If resistances are not as specified, replace IAT sensor.
  2. Turn ignition on. Using a voltmeter, measure voltage between ground and Brown/Blue wire at IAT sensor harness connector. If voltage is 4.7-5.2 volts, go to next step. If voltage is not 4.7-5.2 volts, check wiring and connectors between PCM and IAT sensor. See WIRING DIAGRAMS article. Repair wiring and connectors as necessary. If wiring and connectors are okay, replace PCM.
  3. Check for continuity between ground and Black/Green wire at IAT sensor harness connector. If continuity exists, inspect IAT sensor connector. Repair connector as necessary. If connector is okay, replace PCM. If continuity does not exist, check for open in Black/Green wire between IAT sensor and terminal No. 43 at PCM harness connector A-78. Circuit runs through junction connector No. 3. See WIRING DIAGRAMS article. Repair wiring as necessary. If wiring is okay, replace PCM.
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