Circuit Description
The powertrain control module (PCM) provides 5 volts to the A/C refrigerant pressure sensor. The PCM monitors the voltage on the 5-volt reference circuit. If the PCM detects that the voltage is out of tolerance, DTC P0651 sets.
The powertrain control module (PCM) provides 5 volts to the A/C refrigerant pressure sensor. The PCM monitors the voltage on the 5-volt reference circuit. If the PCM detects that the voltage is out of tolerance, DTC P0651 sets.