P0685

P0685 00

Main Relay Circuit, Performance Problem







Fault symptom
Check Engine

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 Description of On-Board Diagnostics/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