Code result
P2CD4
A/C Refrigerant Pressure Sensor A/B Correlation
Moderate severity
What it means
The signals of A/C refrigerant pressure sensors A and B do not correlate within the calibrated tolerance. One sensor drifts or installation offset between the two channels.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
One sensor characteristic drifted
highOne of the most commonly reported causes for this code — check this first.
Harness incorrectly swapped between channels
mediumA plausible cause — test and verify before replacing parts.
Related help
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