Honda Civic manuals

Subaru Legacy Service Manual: Dtc p0717 input/turbine shaft speed sensor "a" circuit no signal

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

Standing start problems

Shock occurs when engaging the lockup clutch.

Shock occurs when selecting shift position.

WIRING DIAGRAM:

CVT control system CVT Control System > WIRING DIAGRAM

STEPCHECKYESNO

1.CHECK FUSE.

1) Turn the ignition switch to OFF.

2) Check the M/B fuse No. 26.

Is the fuse OK-

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

Replace the fuse. If the fuse blows out easily, repair the short circuit of harness.

2.CHECK ECM CONNECTOR.

Check the connecting condition of ECM connector.

Is the ECM connector correctly connected-

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

Connect the ECM connector correctly.

3.CHECK HARNESS BETWEEN TRANSMISSION CONNECTOR AND MAIN RELAY CONNECTOR.

1) Turn the ignition switch to OFF.

2) Measure the voltage between transmission connector and engine ground.

Connector & terminal

(B11) No. 6 (+) — Engine ground (−):

Is the voltage 10 V or more-

Repair the harness and connector.

NOTE:

In this case, repair the following item:

Short circuit to power supply of harness between transmission connector and main relay connector

Defective main relay

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

4.CHECK HARNESS BETWEEN ECM AND MAIN RELAY CONNECTOR.

1) Turn the ignition switch to OFF.

2) Remove the main relay.

3) Disconnect the connector from ECM.

4) Measure the resistance between the ECM connector and engine ground.

Connector & terminal

(B134) No. 60 — Engine ground:

Is the resistance 1 M- or more-

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

Repair the short circuit to ground in harness between ECM connector and main relay connector.

5.CHECK HARNESS.

1) Turn the ignition switch to OFF.

2) Disconnect the TCM and turbine speed sensor connector.

3) Measure the resistance between TCM connector and turbine speed sensor connector.

Connector & terminal

(T10) No. 12 — (AT5) No. 2:

(T10) No. 26 — (AT5) No. 3:

Is the resistance less than 1 --

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

Repair the open circuit of harness.

6.CHECK HARNESS.

Measure the resistance between TCM connector and chassis ground.

Connector & terminal

(T10) No. 12 — Chassis ground:

Is the resistance 1 M- or more-

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

Repair the short circuit of harness.

7.CHECK TRANSMISSION HARNESS.

1) Install the fuse.

2) Connect the TCM connector.

3) Disconnect the transmission connector.

4) Turn the ignition switch to ON.

5) Measure the voltage between transmission connector terminals.

Connector & terminal

(B11) No. 6 (+) — Chassis ground (−):

Is the voltage 10 — 13 V-

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

Repair the open circuit of harness or poor contact of connector.

8.CHECK INPUT SIGNAL FOR TCM.

1) Turn the ignition switch to OFF.

2) Connect all connectors.

3) Lift up the vehicle.

4) Start the engine.

5) Read the data of «Turbine Revolution Speed» using the Subaru Select Monitor.

Does the value of «Turbine Revolution Speed» change according to the engine speed-

Current condition is normal. Repair the poor contacts of harnesses of turbine speed sensor and transmission connector.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

9.CHECK TRANSMISSION HARNESS.

1) Turn the ignition switch to OFF.

2) Disconnect the transmission connector.

3) Disconnect the turbine speed sensor connector.

4) Measure the resistance between transmission connector and turbine speed sensor connector.

Connector & terminal

(T14) No. 6 — (AT5) No. 1:

Is the resistance less than 1 --

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

Replace the transmission harness.

10.CHECK TURBINE SPEED SENSOR.

1) Turn the ignition switch to OFF.

2) Replace the turbine speed sensor. Turbine Speed Sensor

3) Perform the Clear Memory Mode. Clear Memory Mode

4) Read the DTC.

Is DTC P0717 displayed-

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0717 INPUT/TURBINE SHAFT SPEED SENSOR "A" CIRCUIT NO SIGNAL

The original turbine speed sensor is defective.

11.CHECK MAIN RELAY.

1) Turn the ignition switch to OFF.

2) Replace the main relay.

3) Perform the Clear Memory Mode. Clear Memory Mode

4) Read the DTC.

Is DTC P0717 displayed-

Replace the TCM. Transmission Control Module (TCM)

The original main relay is defective.

1. OUTLINE OF DIAGNOSIS

Detect the no input signal from the turbine speed sensor.

Judge as NG if there is no input signal from the turbine speed sensor, while the primary speed sensor on the same shaft has the input signal with the forward/reverse clutch engaged.

2. EXECUTION CONDITION

Secondary Parameters

Execution condition

12 V battery system voltage

≥ 10 V

Engine speed

≥ 500 rpm

Transmission range

Drive or Reverse

Measured primary pulley shaft speed

≥ 500 rpm

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

Measured turbine shaft speed

0 rpm

Time Needed for Diagnosis: 0.5 seconds

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

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