Diagnostic trouble code (DTC) information

Condition

Fig 1: Identifying A/C Pressure Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) ECM-5000 is stored if the control module registers a short-circuit to ground / voltage or an open-circuit in the signal cable for the air conditioning (A/C) pressure sensor.

Substitute Value

Air conditioning (A/C) pressure sensor disabled.
An A/C pressure of 700 kPa is assumed.

Possible Source

Signal too high:

short-circuit to supply voltage in the signal cable
defective air conditioning (A/C) pressure sensor.

Signal too low

open-circuit in the signal cable
short-circuit to ground in the signal cable
defective air conditioning (A/C) pressure sensor.

Fault symptom[s]

The air conditioning (A/C) compressor does not operate.