Diagnostic Trouble Code (DTC) Information ECM-5000

Condition 

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

Substitute Value 

• The engine cooling fan (FC) is activated at the predefined speed
• Air conditioning (A/C) shut off
• The A/C pressure is calculated at approximately 700 kPa.

Possible Source 

Signal too high 

• Short-circuit to supply voltage in the signal cable
• Damaged A/C pressure sensor.

Signal too low 

• Short-circuit to ground in the signal cable
• Open-circuit in the signal cable
• Damaged A/C pressure sensor.

Fault symptom[s] 

• The air conditioning (A/C) compressor does not start, or runs sporadically.