DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0531

REFRIGERANT PRESS SENSOR A

(A/C refrigerant pressure sensor A circuit range/performance

Diagnosis condition

• Ignition switch ON
• Engine running

Signal (terminal)

Refrigerant pressure sensor signal

Threshold

ECM detects that input signal from the refrigerant pressure sensor is out of the specified range

Diagnosis delay time

5 seconds