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.
• Main Relay Voltage exceeds 10 V. Engine speed below 3500 RPM. Intake pressure decreases rapidly by more than 3 kPa whereupon the accelerator pedal is fully released. Charge air pressure exceeds 120 kPa. The solenoid valve for the by-pass valve has been deactivated.

Fault criteria: 

• Charge air pressure pulsating at 14-18 Hz with amplitude exceeding 3 kPa. Criteria must be fulfilled on two separate occasions within 600 s during the same driving cycle.

Dependents: 

• P0106,P0107 ,P0108 , P1105 , P1106 , P1107 , P1108 , P1530 , P1531 , P1532 , P1631 , P1632  and P1633 .

System reaction to a fault: 

• As a substitute value the intake pressure sensor and charge air temperature sensor are used.

OK report: 

• Enable criteria fulfilled and amplitude below 1 kPa. Criteria must be fulfilled on three consecutive occasions during the same driving cycle.

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

• Type III.