Simple Inspection Of The A/C Pressure Sensor

WARNING: This page is about a different variant/trim than selected.

Assemble a gauge manifold on the high pressure service valve.
Disconnect the A/C pressure sensor connector and connect special tool test harness MB991658 as shown in the illustration.
Turn ON the engine and then turn ON the air conditioner switch.

Fig 1: Identifying A/C Pressure Sensor
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 2: Checking A/C Pressure Sensor Operation
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
At this time, check to see that the voltage of A/C pressure sensor terminal No. 2 reflects the specifications of the figure.
NOTE: The allowance shall be defined as ±5%.

Fig 3: Refrigerant Pressure And Output Voltage Graph
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.