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Home >> Dodge and Ram >> 2023 >> Durango GT, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (5.7L - DTCS P0513 To P061C) >> DTC Troubleshooting >> P0532-A/C Pressure Sensor Circuit Low >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR AN ACTIVE DTC 
    1. Start the engine and allow it to idle.
      WARNING:

      When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury.

    2. With the scan tool, read DTCs and record on the repair order.

      Is the DTC active or pending?

      Yes 

      • Go To  2

      No 

  2. CHECK FOR OTHER DTCS 
    1. Refer to the recorded DTCs.

      Are there any system voltage or 5-Volt Reference DTCs active or pending?

      Yes 

      No 

      • Go To  3
  3. CHECK THE (K854) 5-VOLT SUPPLY CIRCUIT VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the A/C Pressure Transducer harness connector.
    3. Turn the ignition on.
    4. Measure the voltage on the (K854) 5-Volt Supply circuit at the A/C Pressure Transducer harness connector.

      Is the voltage above 4.8 volts?

      Yes 

      • Go To  4

      No 

      • Repair the (K854) 5-Volt Supply circuit for an open circuit or short to ground.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  4. CHECK THE A/C PRESSURE TRANSDUCER (C18) PRESSURE SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the PCM C1 harness connector.
    3. Check for continuity between ground and the A/C Pressure Transducer (C18) Pressure Signal circuit at the A/C Pressure Transducer harness connector.

      Is there continuity between ground and the A/C Pressure Transducer (C18) Pressure Signal circuit?

      Yes 

      • Repair the A/C Pressure Transducer (C18) Pressure Signal circuit for a short to ground.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  5
  5. CHECK FOR THE A/C PRESSURE TRANSDUCER (C18) PRESSURE SIGNAL CIRCUIT SHORTED TO THE (K914) SENSOR GROUND CIRCUIT 
    1. Check for continuity between the A/C Pressure Transducer (C18) Pressure Signal circuit and the (K914) Sensor Ground circuit at the A/C Pressure Transducer harness connector.

      Is there continuity between the A/C Pressure Transducer (C18) Pressure Signal circuit and the (K914) Sensor Ground circuit at the A/C Pressure Transducer harness connector?

      Yes 

      • Repair the short between A/C Pressure Transducer (C18) Pressure Signal circuit for a short to the (K914) Sensor Ground circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  6
  6. CHECK THE ABILITY OF THE PCM TO READ THE A/C PRESSURE TRANSDUCER SIGNAL 
    1. Reconnect the PCM C1 harness connector.
    2. Connect a jumper between the (K854) 5-Volt Supply circuit and the A/C Pressure Transducer (C18) Pressure Signal circuit at the A/C Pressure Transducer harness connector.
    3. Turn the ignition on.
    4. With the scan tool, read DTCs.
      NOTE:

      The P0533-A/C PRESSURE SENSOR CIRCUIT HIGH DTC should display as active or pending with the jumper in place

      Does the scan tool display as described above?

      Yes 

      No 

      • Go To  7
  7. CHECK RELATED PCM AND COMPONENT CONNECTIONS 
    1. Disconnect all PCM harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Terminals that have been pushed back into the connector cavity.
      • Check for spread terminals and verify proper terminal tension.

      Repair any conditions that are found.

    5. Connect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Connect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. With the scan tool, erase DTCs.
    9. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
    10. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      No 

      • The wiring or poor connection problem has been repaired.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
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