DTC P0716 Input/Turbine Shaft Speed Sensor "A" Circuit Range/Performance: Notes

DTC detecting condition: 

Immediately at fault recognition

Trouble symptom: 

• Standing start problems
• Shock occurs when selecting shift position.

Wiring diagram: 

CVT control system Ref. to WIRING SYSTEM>CVT Control System>WIRING DIAGRAM>NON-TURBO MODEL .

1. CHECK FUSE. 
   1. Turn the ignition switch to OFF.
   2. Remove the fuse (7.5 A) from the fuse holder.
   3. Check the fuse.

   Is the check result OK?

   • Yes  : Go to 2. 
   • No  : Replace the fuse. If the fuse blows out easily, repair the short circuit of harness.
2. CHECK HARNESS. 
   1. Disconnect the TCM connector.
   2. Remove the self shut relay.
   3. Measure the resistance between TCM connector and relay holder.

      Connector & terminal 

      (B54) No. 25 - (B220) No. 16:

      (B54) No. 8 - (B220) No. 15:

      (B54) No. 24 - (B220) No. 15:

      (B54) No. 40 - (B220) No. 15:

   Is the resistance less than 1 Ω?

   • Yes  : Go to 3. 
   • No  : Repair the open circuit of harness.
3. CHECK HARNESS. 

   Measure the resistance between TCM connector and chassis ground.

   Connector & terminal 

   (B54) No. 25 - Chassis ground:

   (B54) No. 8 - Chassis ground:

   (B54) No. 24 - Chassis ground:

   (B54) No. 40 - Chassis ground:

   Is the resistance 1 MΩ or more?

   • Yes  : Go to 4. 
   • No  : Repair the short circuit of harness.
4. CHECK RELAY POWER SUPPLY. 

   Measure the voltage between relay holder and chassis ground.

   Connector & terminal 

   (B220) No. 14 (+) - Chassis ground (-):

   (B220) No. 17 (+) - Chassis ground (-):

   Is the voltage 10 V or more?

   • Yes  : Go to 5. 
   • No  : Repair the open or short circuit of harness.
5. CHECK SELF SHUT RELAY. 

   Measure the resistance between self shut relay terminals.

   Terminals 

   No. 16 - No. 17:

   Is the resistance 110 - 140 Ω?

   • Yes  : Go to 6. 
   • No  : Replace the self shut relay.
6. CHECK SELF SHUT RELAY. 

   Measure the resistance between self shut relay terminals.

   Terminals 

   No. 14 - No. 15:

   Is the resistance 1 MΩ or more?

   • Yes  : Go to 7. 
   • No  : Replace the self shut relay.
7. CHECK INPUT SIGNAL FOR TCM. 
   1. Connect the TCM connector.
   2. Install the self shut relay.
   3. Read the data of [Control Module Voltage] using Subaru Select Monitor.

   Is [Control Module Voltage] 10 V or more?

   • Yes  : Current condition is normal. Check for poor contact in connectors or harnesses, and repair the defective part.
   • No  : Go to 8. 
8. CHECK HARNESS. 
   1. Turn the ignition switch to OFF.
   2. Disconnect the TCM connector.
   3. Disconnect the transmission connector.
   4. Measure the resistance between TCM connector and transmission connectors.

      Connector & terminal 

      (B54) No. 12 - (B12) No. 9:

      (B54) No. 42 - (B12) No. 7:

      (B550) No. 20 - (B12) No. 6:

   Is the resistance less than 1 Ω?

   • Yes  : Go to 9. 
   • No  : Repair the open circuit of harness.
9. CHECK HARNESS. 

   Measure the resistance between TCM connector and chassis ground.

   Connector & terminal 

   (B54) No. 12 - Chassis ground:

   Is the resistance 1 MΩ or more?

   • Yes  : Go to 10. 
   • No  : Repair the short circuit of harness.
10. CHECK HARNESS. 

    Measure the resistance between relay holder and fuse holder.

    Connector & terminal 

    (B220) No. 15 - (B550) No. 8:

    Is the resistance less than 1 Ω?

    • Yes  : Go to 11. 
    • No  : Repair the open circuit of harness.
11. CHECK TRANSMISSION HARNESS. 
    1. Install the fuse.
    2. Connect the TCM connector.
    3. Turn the ignition switch to ON.
    4. Measure the voltage between transmission connector terminals.

       Connector & terminal 

       (B12) No. 6 (+) - Chassis ground (-):

    Is the voltage 10 - 13 V?

    • Yes  : Go to 12. 
    • No  : Repair the open circuit of harness or poor contact of connector.
12. CHECK INPUT SIGNAL FOR TCM. 
    1. Turn the ignition switch to OFF.
    2. Connect the transmission connector.
    3. Lift up the vehicle.
    4. Start the engine.
    5. Read the data of [Turbine Revolution Speed] using Subaru Select Monitor.

    Does the value of [Turbine Revolution Speed] change according to the engine speed?

    • Yes  : Current condition is normal. Repair the poor contacts of harnesses of turbine speed sensor and transmission connector.
    • No  : Go to 13. 
13. 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 

       (T3) No. 6 - (AT5) No. 1:

       (T3) No. 7 - (AT5) No. 3:

       (T3) No. 9 - (AT5) No. 2:

    Is the resistance less than 1 Ω?

    • Yes  : Go to 14. 
    • No  : Replace the transmission harness.
14. CHECK TURBINE SPEED SENSOR HARNESS. 

    Measure the resistance between transmission connector and chassis ground.

    Connector & terminal 

    (T3) No. 6 - Chassis ground:

    (T3) No. 9 - Chassis ground:

    Is the resistance 1 MΩ or more?

    • Yes  : Go to 15. 
    • No  : Repair the short circuit of harness.
15. CHECK TURBINE SPEED SENSOR. 
    1. Turn the ignition switch to OFF.
    2. Replace the turbine speed sensor. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Turbine Speed Sensor .
    3. Clear the memory. Ref. to TRANSMISSION (DIAGNOSTICS)>Clear memory .
    4. Read the DTC.

    Is DTC P0716 displayed?

    • Yes  : Go to 16. 
    • No  : The original turbine speed sensor is defective.
16. CHECK SELF SHUT RELAY. 
    1. Turn the ignition switch to OFF.
    2. Replace the self shut relay.
    3. Clear the memory. Ref. to TRANSMISSION (DIAGNOSTICS)>Clear memory .
    4. Read the DTC.

    Is DTC P0716 displayed?

    • Yes  : Replace the TCM. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION(TR580)>Transmission Control Module (TCM) .
    • No  : The original self shut relay is defective.