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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (5.7L - DTCS P2167 To U0151) >> DTC Troubleshooting >> P3032-Barometric Pressure Sensor Performance Plausibility >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR THE DTC TO RETURN 

  1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
  2. For future reference, run and save a vehicle Scan Report and all related recorded data.
  3. With the scan tool, erase all DTCs.
  4. Turn the ignition off for a minimum of 10.0 seconds.
  5. Turn the ignition on.
  6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
  7. With the scan tool, read DTCs.

    Did the DTC return?

    Yes 

    • The BARO Sensor is located inside the PCM. Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL AND INSTALLATION .
      NOTE:

      Verify that the Battery/System voltage is not low before replacing the PCM. Low voltage to the PCM can cause an erroneous fault to set.

    • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

    No