Condition for fault identification

Voltage precondition:

Vehicle voltage > 10 V

Temperature precondition:

• Ambient temperature > -10°C
• Engine temperature at start > -10 °C and < 60 °C
• Charge air temperature > -10 °C

Time precondition:

None

Other preconditions:

Engine on

Diagnosis monitors the increase in engine temperature (coolant temperature at engine outlet).