ME9 / P2227 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Malfunction Indicator Lamp

P2227 00

Fault symptom

Malfunction Indicator Lamp

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Battery voltage must be between 10 - 18 V.

Engine running more than 20 seconds.

Air mass 11 g/s.

Less than 100 kPa difference between actual atmospheric pressure and calculated boost pressure for more than 3 seconds.

NONE of the following DTCs must be detected:

•	P0121, P0122, P0123

•	P0221, P0222, P0223

•	P0335, P0336, P0338

•	P2228, P2229

Fault criteria:

Atmospheric pressure changed more than 5 kPa in 20 seconds.

Or

Atmospheric pressure has changed more than 30 kPa since last driving cycle.

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:

•	Atmospheric Pressure

(See also description of readings/activations in diagnostic tool)