Diagnostic Trouble Code (DTC) Information ECM-436D

Condition 

Fig 1: Identifying Leak Diagnostic Pump

Courtesy of VOLVO CARS CORPORATION

The diagnostic trouble code (DTC) is stored if the power consumption of the pump in the leak diagnostic unit is lower than a certain value during the reference phase.

The diagnostic trouble code (DTC) can be diagnosed when the leak diagnostic system is run.

Substitute Value 

The leak diagnostic is disabled.

Possible Source 

• Contact resistance in the terminals
• Damaged leak diagnostic unit.

Fault symptom[s] 

• Malfunction indicator lamp (MIL) lit.