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

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

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.

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