Honda Civic manuals

Subaru Legacy Service Manual: Dtc p0721 output shaft speed sensor circuit range/performance

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

Acceleration is poor during standing start.

No lock-up occurs.

The engine stalls when the vehicle is stopped.

Shift control malfunction

STEPCHECKYESNO

1.CHECK DTC.

Read the DTC using Subaru Select Monitor.

Besides DTC P0721, is DTC P0500 displayed-

Perform the diagnosis according to DTCs other than P0721.

Perform the diagnosis according to DTC P0720. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0720 OUTPUT SHAFT SPEED SENSOR CIRCUIT

1. OUTLINE OF DIAGNOSIS

Detect the malfunction of front wheel speed sensor characteristics.

Judge as NG when the deviation between vehicle speed from VDC and front wheel speed sensor becomes equal to or larger than the predetermined value.

2. EXECUTION CONDITION

Secondary Parameters

Execution condition

12 V battery system voltage

≥ 10 V

Vehicle speed (from vehicle dynamics control module)

≥ 12 MPH

3. DIAGNOSTIC METHOD

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value

Malfunction Criteria

Threshold Value

|Vehicle speed (calculated from front output shaft speed) − Vehicle speed (from vehicle dynamics control module)|

> 10 MPH

Time Needed for Diagnosis: 5 seconds

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

Dtc p0724 brake switch "b" circuit high
DTC DETECTING CONDITION:Immediately at fault recognitionTROUBLE SYMPTOM:Gear is not shifted down when climbing a hill or driving down a hill.WIRING DIAGRAM:• ENGINE TYPE FBStop light system Sto ...

Dtc p0720 output shaft speed sensor circuit
DTC DETECTING CONDITION:Immediately at fault recognitionTROUBLE SYMPTOM:• Shock occurs when selecting shift position.• Shift control malfunctionWIRING DIAGRAM:CVT control system CVT Contr ...

Other materials:

Note
For operation procedures of each component of the turn signal and hazard light system, refer to the respective sections.• Headlight Assembly: Headlight Assembly• Combination switch (light): Combination Switch (Light)• Front turn signal light bulb: Front Turn Signal Light Bulb&bu ...

© 2017-2019 Copyright www.sulegacy.com