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

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION  Directory. For wiring diagram, see WIRING DIAGRAMS article.
  1. Reconnect TP sensor connector. Disconnect Manifold Absolute Pressure (MAP) sensor electrical connector. Using scan tool, check voltage of 5-volt supply circuit at MAP sensor connector. See the MAP SENSOR CONNECTOR WIRE IDENTIFICATION  table. If voltage is 4.5 volts or more, go to next step. If voltage is less than 4.5 volts, replace TP sensor. Perform TEST VER-2A.
  2. While observing scan tool voltmeter connected to MAP sensor connector 5-volt supply circuit, wiggle wiring harness for MAP sensor, A/C pressure sensor and TP sensor. If voltage changed, repair wiring harness as necessary where wiggling caused problem to appear. Perform TEST VER-2A. If voltage did not change, go to next step.
  3. Condition to set trouble code is not present at this time. 5 VOLT SUPPLY OUTPUT TOO LOW DTC sets if 5-volt supply to engine sensors is less than 3.5 volts for 4 seconds. Possible causes are:
    • Shorted 5-volt supply circuit
    • Shorted sensor.
  4. Inspect all related wiring and connectors and repair as necessary. If no problems were found with wiring and connectors, see INACTIVE TROUBLE CODE CONDITION . Test is complete. Perform TEST VER-2A. If related wiring and connectors were repaired, perform TEST VER-2A.
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