LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 2000 >> Intrepid Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1496: 5-Volt Supply Output Too Low >> Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P1496: 5-Volt Supply Output Too Low: Testing

NOTE: Vehicles equipped with a 2.7L engine are equipped with a Manifold Absolute Pressure (MAP) sensor. Vehicles equipped with a 3.2L and 3.5L engine are equipped with an Intake Air Temperature/Manifold Absolute Pressure (IAT/MAP) sensor. For this test, IAT/MAP will be identified as MAP sensor.
  1. Turn ignition on. Using scan tool, read DTCs. If GLOBAL GOOD TRIP counter is displayed and displayed count is "0", go to next step. If GLOBAL GOOD TRIP counter is not displayed or displayed count is not "0", go to step  9.
  2. Turn ignition off. Disconnect Throttle Position (TP) sensor connector. Turn ignition on. Measure voltage between ground and Violet/White wire at TP sensor harness connector. If voltage is less than 4.5 volts, go to next step. If voltage is 4.5 volts or more, go to step  8.
  3. Connect voltmeter between ground and Violet/White wire at TP sensor harness connector. Disconnect EGR solenoid connector and note voltage reading. EGR solenoid is integral to EGR valve. EGR valve is mounted to rear of right cylinder head. If voltage does not change from less than 4.5 volts to more than 4.5 volts, go to next step. If voltage changes from less than 4.5 volts to more than 4.5 volts, replace EGR valve.
    4. NOTE: A/C pressure sensor may also be referred to as A/C pressure transducer.
  4. With voltmeter still connected between ground and Violet/White wire at TP sensor harness connector, disconnect A/C pressure sensor Gray connector. A/C pressure sensor is located in high pressure line, near A/C compressor. If voltage does not change from less than 4.5 volts to more than 4.5 volts, go to next step. If voltage changes from less than 4.5 volts to more than 4.5 volts, replace A/C pressure sensor.
  5. With voltmeter still connected between ground and Violet/White wire at TP sensor harness connector, disconnect MAP sensor connector. See Figure or Figure . If voltage does not change from less than 4.5 volts to more than 4.5 volts, go to next step. If voltage changes from less than 4.5 volts to more than 4.5 volts, replace MAP sensor.
  6. Turn ignition off. Ensure TP sensor, EGR solenoid, A/C pressure sensor and MAP sensor connectors are disconnected. Disconnect PCM connectors. PCM is located on left side of engine compartment, between Power Distribution Center (PDC) and Transmission Control Module (TCM). See Figure. Measure resistance between ground and Violet/White wire at TP sensor harness connector. If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, repair short to ground in Violet/White wire.
  7. At this time, PCM is assumed to be defective. Replace PCM.
  8. Turn ignition off. Reconnect TP sensor connector. Disconnect MAP sensor connector. See Figure or Figure . Turn ignition on. Measure voltage between ground and Violet/White wire at MAP sensor harness connector. If voltage is 4.5 volts or more, go to next step. If voltage is less than 4.5 volts, replace TP sensor.
  9. Turn ignition off. Visually inspect related connectors and wiring harness. Repair connectors and wiring harness as necessary. If connectors and wiring harness are okay, no problem is indicated at this time. Test is complete. Check for any technical service bulletins that may apply.
scientia non olet · About LEMON Manuals