Chevrolet P151C: Air Conditioning (A/C) Low Side Refrigerant Pressure Sensor Not Plausible

Is your scanner showing Chevrolet P151C?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

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Chevrolet P151C: Air Conditioning (A/C) Low Side Refrigerant Pressure Sensor Not Plausible

OVERVIEW

Severity

Medium

DIY Difficulty Level

Intermediate

Repair Cost

$200-$300

Can I Still Drive?

Yes (Short-term only)

What Does The Chevrolet P151C Code Mean?

12 V battery system voltage above 10.25 V. HPCM2 is awake and communicating. Outside Air Temperature raw and corrected values must have had a chance to settle out. Once this occurs these variables are assigned a status of valid. May need to have some time driving in EV mode Engine coolant temperature must be within 15 degrees of outside air temperature Outside Air Temperature between 0°C (32°F) and 25°C (77°F). AC compressor must have been off for an hour since the last time the AC compressor was on.

What Are The Potential Causes Of The Chevrolet P151C Code?

The A/C low side Refrigerant Pressure reading and the A/C high side Refrigerant Pressure reading must be within 200 kPa (29 psi). and the A/C low side Refrigerant Pressure reading and the pressure derived from the A/C Refrigerant Temperature Sensor must be within 200 kPa (29 psi)