Drive with caution — fix soon.
This code means the A/C refrigerant pressure sensor is sending a signal that's too low, often near zero volts. It typically points to a wiring short to ground, a bad connector, a failed sensor, or genuinely low refrigerant pressure. Most cases are fixed by replacing the sensor or repairing wiring, sometimes after recharging the system.
$120 – $350
Varies by vehicle and root cause.
Generally yes. The code involves the A/C system rather than the engine or brakes, so driving is safe. You'll likely lose air conditioning, which is uncomfortable in hot weather but not dangerous. Schedule a repair when you can.
Expect roughly $120 to $350. Replacing the pressure sensor is the most common and affordable fix, while wiring repairs or a refrigerant recharge add to the bill. Diagnosis confirms the exact cause before any parts are bought.
It's moderate, not serious. It won't harm your engine or put you at risk, but it usually disables the A/C and can stress the compressor if ignored. Addressing it promptly keeps the system healthy.
Low input means the sensor's voltage signal dropped below the normal range, often pointing to a short to ground or a wiring break. It can also mean refrigerant pressure is genuinely too low. A technician tests the circuit and the charge to tell them apart.