ECM-P053400

ECM-P053400 A/C Refrigerant Charging Loss

Condition
The A/C system must have a certain basic pressure for optimal function. If engine control module (ECM) detects a pressure that is too low in the A/C system, the control module interprets this as a malfunction and the diagnostic trouble code is generated.

The diagnostic trouble code can be diagnosed with the engine running and the A/C control active.

Substitute Value
- Nothing.

Possible Source
- Leak in the A/C system.

Fault Symptom[s]
- A/C system does not work.