Honda Civic manuals

Subaru Legacy Service Manual: Dtc p0961 pressure control solenoid "a" control circuit range/performance

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

Acceleration is poor during standing start.

Shift control malfunction

Engine speed increases abruptly.

1. ENGINE TYPE FB

WIRING DIAGRAM:

CVT control system CVT Control System > WIRING DIAGRAM

STEPCHECKYESNO

1.CHECK DTC.

Read the DTC using Subaru Select Monitor.

Besides DTC P0961, is DTC P0962 or P0963 displayed-

Perform the diagnosis according to DTCs other than P0961.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0961 PRESSURE CONTROL SOLENOID "A" CONTROL CIRCUIT RANGE/PERFORMANCE

2.CHECK SECONDARY SOLENOID (ACTIVE TEST).

1) Turn the ignition switch to ON.

2) Using the Subaru Select Monitor, perform forced operation of the secondary solenoid. Active Test

Does the indication change as 300 > 500 > 700 mA during forced operation, and does «Sec. Sol. Actual Current» synchronize with «Sec. Sol. Set Current»-

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0961 PRESSURE CONTROL SOLENOID "A" CONTROL CIRCUIT RANGE/PERFORMANCE

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0961 PRESSURE CONTROL SOLENOID "A" CONTROL CIRCUIT RANGE/PERFORMANCE

3.CHECK FOR POOR CONTACT.

Check for poor contact of harness and connector between TCM and secondary solenoid.

Is there poor contact-

Repair the poor contact of harness and connector.

Recheck the poor contact of harness and connector. Replace the TCM if no fault is found. Transmission Control Module (TCM)

4.CHECK SECONDARY SOLENOID.

1) Turn the ignition switch to OFF.

2) Disconnect the TCM connector.

3) Measure the resistance between TCM connector and transmission body.

Connector & terminal

(T10) No. 32 — Transmission body:

Is the resistance approx. 5 — 7 -- (when cold)

Replace the control valve body. Control Valve Body

Repair or replace the harness.

2. ENGINE TYPE EZ

WIRING DIAGRAM:

CVT control system CVT Control System > WIRING DIAGRAM

STEPCHECKYESNO

1.CHECK DTC.

Read the DTC using Subaru Select Monitor.

Besides DTC P0961, is DTC P0962 or P0963 displayed-

Perform the diagnosis according to DTCs other than P0961.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0961 PRESSURE CONTROL SOLENOID "A" CONTROL CIRCUIT RANGE/PERFORMANCE

2.CHECK SECONDARY SOLENOID (ACTIVE TEST).

1) Turn the ignition switch to ON.

2) Using the Subaru Select Monitor, perform forced operation of the secondary solenoid. Active Test

Does the indication change as 300 > 500 > 700 mA during forced operation, and does «Sec. Sol. Actual Current» synchronize with «Sec. Sol. Set Current»-

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0961 PRESSURE CONTROL SOLENOID "A" CONTROL CIRCUIT RANGE/PERFORMANCE

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0961 PRESSURE CONTROL SOLENOID "A" CONTROL CIRCUIT RANGE/PERFORMANCE

3.CHECK FOR POOR CONTACT.

Check for poor contact of harness and connector between TCM and secondary solenoid.

Is there poor contact-

Repair the poor contact of harness and connector.

Recheck the poor contact of harness and connector. Replace the TCM if no fault is found. Transmission Control Module (TCM)

4.CHECK SECONDARY SOLENOID.

1) Turn the ignition switch to OFF.

2) Disconnect the transmission connector.

3) Measure the resistance between transmission connector and transmission body.

Connector & terminal

(T4) No. 5 — Transmission body:

Is the resistance approx. 5 — 7 -- (when cold)

Replace the control valve body. Control Valve Body

Repair or replace the harness.

3. OUTLINE OF DIAGNOSIS

Detect the malfunction of transmission line pressure solenoid drive circuit.

Judge as NG when the deviation between target current and actual current of the transmission line pressure solenoid becomes equal to or larger than the predetermined value.

4. EXECUTION CONDITION

Secondary Parameters

Execution condition

12 V battery system voltage

≥ 9 V

5. 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

| Target line pressure control solenoid valve current − Measured line pressure control solenoid valve current |

> 0.2 A

Time Needed for Diagnosis: 5 seconds

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

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Other materials:

To help prevent corrosion
Wash the vehicle regularly to prevent corrosion of the body and suspension components. Also, wash the vehicle promptly after driving on any of the following surfaces.  roads that have been salted to prevent them from freezing in winter  mud, sand, or gravel  coastal road ...

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