On-Board Diagnostics

Type of diagnosis: 

• Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria 

• General condition for this diagnostic trouble code: Atmospheric pressure must exceed 72 kPa as well as coolant and intake air temperature must exceed -7°C.
• Engine running.

Fault criteria 

• Voltage higher than 4.950 V for more than 5 s.

Dependents 

• None

System reaction to a fault 

• Integrity diagnosis of purge system blocked.

OK report 

• Diagnoses for P1451 , P1452  and P1453  performed once and fault criteria not fulfilled. Fault criteria for P0452  or P0453  not fulfilled.

Fault handling:  (For more information, see FAULT HANDLING III, OTHER EMISSION-RELATED COMPONENTS AND FUNCTION ).

• Type III.