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Home >> Eagle >> 1996 >> Talon Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Non-Turbo >> Trouble Code Tests >> Test TC-146A - 5 Volt Supply Output Too Low

Test TC-146A - 5 Volt Supply Output Too Low

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION  Directory. For wiring diagram, see WIRING DIAGRAMS article.
  1. Turn ignition on with engine off. Disconnect Throttle Position (TP) sensor connector. Using scan tool in voltmeter mode, check voltage on TP sensor connector 5-volt supply circuit. See the TP SENSOR CONNECTOR WIRE IDENTIFICATION  table. If voltage is less than 4.5 volts, go to next step. If voltage is 4.5 volts or more, go to TEST TC-146B.
  2. With scan tool voltmeter still connected to TP sensor connector 5-volt supply circuit, disconnect Manifold Absolute Pressure (MAP) sensor electrical connector. If voltage is 4 volts or less, go to next step. If voltage is more than 4 volts, replace MAP sensor. Perform TEST VER-2A.
  3. Disconnect A/C pressure sensor connector. If voltage is 4 volts or less, go to next step. If voltage is more than 4 volts, replace A/C pressure sensor. Perform TEST VER-2A.
  4. Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Using scan tool in ohmmeter mode, check resistance of TP sensor 5-volt supply circuit at TP sensor connector. If resistance is less than 5 ohms, repair short to ground on TP sensor 5-volt supply circuit. See the TP SENSOR CONNECTOR WIRE IDENTIFICATION  table. Perform TEST VER-2A. If resistance is 5 ohms or more, replace PCM. Perform TEST VER-2A.
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