P0686

P0686 00

Main Relay Coil Circuit. Open/Short To Ground.







Fault symptom
Check Engine
Engine does not start.
Engine stops.

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Crankshaft rotating.
Output is not active.

Fault criteria:
When voltage on the output is below 2.0 V for more than 1 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