Diagnostic Trouble Code (DTC) Information

Condition

Fig 1: Identifying A/C Pressure Sensor

Courtesy of VOLVO CARS CORPORATION

Diagnostic trouble code (DTC) ECM-5000 is stored if the engine control module (ECM) registers a fault in the signal cable from the air conditioning (A/C) pressure sensor.

Diagnostic trouble code (DTC) ECM-5000 is stored when the air conditioning (A/C) pressure is too low and it is registered by the engine control module (ECM) as a fault.

Substitute Value

none

Possible Source

Signal too high:

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

Signal too low:

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

Signal missing:

defective air conditioning (A/C) pressure sensor
low pressure in the air conditioning (A/C) system
leakage in the air conditioning (A/C) system

Fault symptom[s]

Air conditioning (A/C) system does not work