Subaru Crosstrek Service Manual: Dtc p0965 pressure control solenoid "b" control circuit range/performance

Subaru Crosstrek Service Manual / Continuously variable transmission (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p0965 pressure control solenoid "b" control circuit range/performance

CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0965 PRESSURE CONTROL SOLENOID "B" CONTROL CIRCUIT RANGE/PERFORMANCE

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

• Engine speed increases abruptly, and can not accelerate.

• Excessive slippage is felt.

WIRING DIAGRAM:

CVT control system CVT Control System">

STEP	CHECK	YES	NO

1.CHECK DTC.

Read the DTC using Subaru Select Monitor.

Besides DTC P0965, is any of the DTC P0717, P0966, P0967 or P2747 displayed?

Perform the diagnosis according to DTCs other than P0965.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0965 PRESSURE CONTROL SOLENOID "B" CONTROL CIRCUIT RANGE/PERFORMANCE">Go to Step 2.

2.CHECK F&R SOLENOID (ACTIVE TEST).

1) Turn the ignition switch to ON.

2) Using the Subaru Select Monitor, perform forced operation of the F&R solenoid. Active Test">

Does the indication change as 300 > 500 > 700 mA during forced operation, and does «F&R Linear Solenoid Actual Current» synchronize with «F&R Linear Solenoid Set Current»?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0965 PRESSURE CONTROL SOLENOID "B" CONTROL CIRCUIT RANGE/PERFORMANCE">Go to Step 3.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0965 PRESSURE CONTROL SOLENOID "B" CONTROL CIRCUIT RANGE/PERFORMANCE">Go to Step 4.

3.CHECK FOR POOR CONTACT.

Check for poor contact of harness and connector between TCM and F&R 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 F&R 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. 7 — Transmission body:

Is the resistance approx. 4 — 6 ?? (when cold)

Replace the control valve body. Control Valve Body">

Repair or replace the harness.

1. OUTLINE OF DIAGNOSIS

Diagnosis 1

• Detect the malfunction of transmission forward/reverse clutch pressure solenoid drive circuit characteristics.

• Judge as NG when the deviation between set current and actual current of the transmission forward/reverse clutch pressure solenoid drive circuit becomes equal to or larger than the predetermined value.

Diagnosis 2

• Detect the malfunction of transmission forward/reverse clutch pressure solenoid drive circuit characteristics.

• Judge as NG when the transmission forward/reverse clutch pressure solenoid drive current is within the predetermined value.

2. EXECUTION CONDITION

Secondary Parameters	Execution condition
Diagnosis 1
12 V battery system voltage	≥ 9 V
Diagnosis 2
12 V battery system voltage	≥ 9 V

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
Diagnosis 1
ABS (Target forward & reverse clutch pressure control solenoid current − Measured forward & reverse clutch pressure control solenoid current)	> 0.2 A
Diagnosis 2
Measured forward & reverse clutch pressure control solenoid current	> 1.08 A
	and
	≤ 1.6 A

Time Needed for Diagnosis: 5 seconds

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

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