ME9 / P0234 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Malfunction Indicator Lamp
Turbocharger Overboost Detected
Fault symptom
Malfunction Indicator Lamp
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Drive the car in 3rd gear, 1900 rpm. Full gas acceleration up to 3800 rpm. |
Fault criteria:
| Boost pressure 0.5 kPa higher than requested. |
OK report:
| Drive the car in 3rd gear, even acceleration at 1900 rpm. Then full gas acceleration (pedal not depressed 100%) up to 5000 rpm. |
Diagnostic help
Diagnosis regards:
| Turbo system fault causing high boost pressure. |
Functions in the diagnostic tool related to the fault:
| • | Charge Air Absolute Pressure |
| • | Atmosphere Absoslute Pressure |
| • | Charge Air Control Valve |
| (See also description of readings/activations in diagnostic tool) |
