P2518 OBD-II: A/C Refrigerant Pressure Sensor "B" Circuit High

P2518 Severity

Moderate

Will P2518 go away on its own?

Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.

For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.

Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.

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P2518 Summary Find a Repair Shop P2518 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P2518?

The Hybrid Powertrain Control Module uses multiple sensors in the A/C System to monitor A/C System Operation. The Hybrid Powertrain Control Module compares readings from these sensors to each other when the A/C System is not operating. If one of the sensors does not match the other sensors, code P2158 will set.The A/C System may be disabled.

OBD II Fault Code

OBD II P2518

OBD-II Code A/C may not operate is defined as a A/C Refrigerant Pressure Sensor "B" Circuit High

A/C may not operate Symptoms

A/C may not operate

Common Problems That Trigger the P2518 Code

A/C pressure sensor failure
High voltage powertrain control module failure
Wiring issue

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Other OBD-II Codes

P2517: A/C Refrigerant Pressure Sensor "B" Circuit Low P2516: A/C Refrigerant Pressure Sensor "B" Circuit Range/Performance P2515: A/C Refrigerant Pressure Sensor "B" Circuit P2514: Event Data Recorder Request Circuit High P2513: Event Data Recorder Request Circuit Low P2512: Event Data Recorder Request Circuit/ Open P2511: ECM/PCM Power Relay Sense Circuit Intermittent P2510: ECM/PCM Power Relay Sense Circuit Range/Performance P250F: Engine Oil Level Too Low P250E: Engine Oil Level Sensor Circuit Intermittent/Erratic P250D: Engine Oil Level Sensor Circuit High P250C: Engine Oil Level Sensor Circuit Low P2519: A/C Request "A" Circuit P251A: PTO Enable Switch Circuit/Open P251B: PTO Enable Switch Circuit Low P251C: PTO Enable Switch Circuit High P251D: PTO Engine Shutdown Circuit/Open P251E: PTO Engine Shutdown Circuit Low P251F: PTO Engine Shutdown Circuit High P2520: A/C Request "A" Circuit Low P2521: A/C Request "A" Circuit High P2522: A/C Request "B" Circuit P2523: A/C Request "B" Circuit Low P2524: A/C Request "B" Circuit High

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