T8 / P0685 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general) Engine stops. Engine does not start.

P0685 00

Fault symptom

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

Engine stops.

Engine does not start.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Crankshaft rotating.

Engine running.

Output active.

Fault criteria:

When diagnostics detects fault in the following functions simultaneously:

•	Boost pressure valve

•	Canister Purge Valve

•	Combustion signals

•

Injectors

For a duration of 0.5 s.

Dependent:

None

System reaction to a fault:

None

OK report:

Fault criteria NOT fulfilled during 60 s with engine running.

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:

Activation:

•	Main Relay

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