P1723

P1723 SPEED SENSOR

Description

Judges it as malfunction when it detects noise (pulse) generated by irregular contact of harness etc. of primary speed sensor and secondary speed sensor.


DTC Logic


DTC DETECTION LOGIC


CAUTION:
One of the "P0715" or the "P0720" is displayed with the DTC at the same time.






DTC CONFIRMATION PROCEDURE


CAUTION:
Always drive vehicle at a safe speed.

1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. CHECK DTC DETECTION

With CONSULT
1.Start the engine.
2.Drive the vehicle.
3.Maintain the following conditions for 5 seconds or more.





Is "P1723" detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK SECONDARY SPEED SENSOR SYSTEM

Check the secondary speed sensor system. Refer to "DTC Logic" P0720.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace damaged parts.

2. CHECK PRIMARY SPEED SENSOR SYSTEM

Check the primary speed sensor system. Refer to "DTC Logic" P0715.
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace damaged parts.
Revision: March 20122013 Infiniti JX