SAAB WIS ONLINE

T8 / P2228 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general) Limp home

  P2228 00


Atmosphere Pressure Sensor Circuit. Open Circuit / Short to Ground.

Fault symptom

Fault indicator lamp (for further information see WIS Fault diagnosis, general)

Limp home

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Battery voltage must be between 11 - 16 V.
Ignition ON.

Fault criteria:

When voltage on input below 0.30V for more than 1.0 s.

Dependent:

None

System reaction to a fault:

Torque limited to max. 170Nm.
Tank bleeding adaption is blocked and reset.
Substitution value for atmospheric pressure = boost pressure value (before damper) upon start of engine.

OK report:

Fault criteria NOT fulfilled for 2 s.

Fault handling:

Type III
(See section Fault handling III, "Other emission-related components and functions" for more information.)

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)