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2019 JEEP CHEROKEE
2.4L I4•4WD•AUTOMATIC•gas
11 active safety recalls on this vehicle — view recalls
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Repairs0Labor990Torque6854Fluid20DTC2344Battery2Maintenance0Recalls11
B0641moderate severityBody

A/C Refrigerant Pressure Sensor Circuit

on 2019 Jeep Cherokee 2.4L I4 · 4WD

What this code means

Malfunction in the A/C refrigerant pressure sensor circuit. The sensor monitors system pressure for compressor protection.

Symptoms

  • A/C not engaging
  • A/C blows warm air
  • A/C cycles on and off rapidly
  • Incorrect pressure reading on scan tool

Common causes

  • Faulty pressure sensor/transducer
  • Wiring damage
  • Low refrigerant level
  • Sensor connector corrosion
  • PCM input circuit fault

Diagnostic steps

  1. Read pressure sensor value with scan tool
  2. Compare electronic reading to gauge reading
  3. Test sensor voltage output
  4. Inspect sensor connector
  5. Check wiring to PCM

Repair notes

Replace refrigerant pressure sensor or repair wiring. Check refrigerant charge level.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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