P2257

P2257 00

Secondary Air Injection Relay Circuit. Open / Short to Ground.







Fault symptom
- Check Engine

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.
- Output is not active.

NONE of the following DTCs must be detected:
P0685, P0686, P0687

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 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:

Activation:
- Secondary Air Relay
(See also description of readings/activations in diagnostic tool)