Powertrain
generic / SAE
P2515
A/C Refrigerant Pressure Sensor B Circuit
General electrical fault in the second A/C refrigerant pressure sensor circuit. Sensor B usually monitors the low-side or compressor-suction pressure (in addition to high-side sensor A). The ECM cannot read a plausible value and disables variable compressor control to avoid evaporator freeze-up or overpressure.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 15
Possible causes
- Open or shorted wiring to the sensor high
- Failed sensor element medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.4–1.5 h
- Component: ac pressure sensor b
- Component: sensor wiring
- MIL / check engine light
Sources
References
sae:J2012