Diagnostic trouble code (DTC) information

Condition 

At a certain time after the engine is started, the control module checks that the engine coolant temperature (ECT) exceeds 35 °C. Diagnostic trouble code (DTC) ECM-A2 is stored if the control module detects that the engine coolant temperature (ECT) is below 35 °C.

Substitute Value 

None.

Possible Source 

• Defective thermostat
• Defective engine coolant temperature (ECT) sensor
• Contact resistance in the terminals.

Fault symptom[s] 

• Low engine coolant temperature (ECT)
• High fuel consumption.