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Home >> Subaru >> 2020 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (P-HEV Hybrid Powertrain Control System (Diagnostics) (1 Of 2)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0705-62: Transmission Range Sensor "A" Circuit (PRNDL Input) Signal Compare Failure >> Notes

DTC P0705-62: Transmission Range Sensor "A" Circuit (PRNDL Input) Signal Compare Failure: Notes

WARNING: This page is about a different variant/trim than selected.

1. - 

Outline of diagnosis: 

Shift sensor circuit malfunction (abnormal pattern)

A malfunction in the P, R, N, D or B circuit is detected based on the shift sensor input pattern.

(1 trip detection logic)

Trouble symptom: 

Normal driving

(N position control used for the malfunctioning shift position)

Wiring diagram: 

CVT control system Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>CVT CONTROL SYSTEM>WIRING DIAGRAM .

G13237903Courtesy of SUBARU OF AMERICA, INC.
CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .
G13617949Courtesy of SUBARU OF AMERICA, INC.
  1. CHECK DATA MONITOR (INHIBITOR SWITCH)  .
    1. Turn to IG ON.
    2. Using the Subaru Select Monitor, display the following items in the [Data Monitor] of [P-HEV Hybrid Powertrain Control]. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DATA MONITOR .
      • Shift Position Sensor (PNB)
      • Shift Position Sensor (PR)
      • Shift Position Sensor (DB1)
      • Shift Position Sensor (DB2)
      • Shift Position Sensor (N)
      • Shift Position Sensor (R)
      • Shift Position Sensor (P)
    3. While depressing the brake pedal, move the shift lever slowly from P to B, and read the data when the shift is returned to P.
      NOTE: Be sure to move the shift lever slowly.

      Specification:

      Data List Shift Position
      P R N D B
      Shift Position Sensor (P) ON OFF OFF OFF OFF
      Shift Position Sensor (R) OFF ON OFF OFF OFF
      Shift Position Sensor (PR) ON ON OFF OFF OFF
      Shift Position Sensor (N) OFF OFF ON OFF OFF
      Shift Position Sensor (DB1) OFF OFF OFF ON ON
      Shift Position Sensor (DB2) OFF OFF OFF ON ON
      Shift Position Sensor (PNB) ON OFF ON OFF ON
    4. Read the DTC of [P-HEV Hybrid Powertrain Control] using the Subaru Select Monitor. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is DTC P070562 displayed?

    Yes  : Go to  3.

    No  : Go to  2.

  2. CHECK NON-PERMANENT OCCURRENCE MALFUNCTIONS  .
    1. Turn the ignition switch to OFF.
    2. Check malfunctions that do not occur frequency. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>GENERAL DESCRIPTION>INSPECTION>CHECK NON-PERMANENT OCCURRENCE MALFUNCTIONS .

    Is the check result OK?

    Yes  : Replace Hybrid vehicle control ECU assembly. Ref. to HYBRID ELECTRIC VEHICLE>HYBRID POWERTRAIN CONTROL MODULE .

    No  : Repair or replace the faulty locations and parts.

  3. CHECK INHIBITOR SWITCH (VOLTAGE CHECK)  .
    1. Turn to IG ON.
    2. Using a tester, measure the voltage between Hybrid vehicle control ECU assembly connector and chassis ground. (With the connector connected)

      Connector & terminal 

      Connector & terminal Condition Standard
      (B605) No. 17 (+) - Chassis ground (-): IG ON and shift lever P 7.5 - 14 V
      IG ON and shift lever other than P 0 - 1.5 V
      (B605) No. 5 (+) - Chassis ground (-): IG ON and shift lever R 7.5 - 14 V
      IG ON and shift lever R 0 - 1.5 V
      (B605) No. 15 (+) - Chassis ground (-): IG ON and shift lever P or R 7.5 - 14 V
      IG ON and shift lever other than P or R 0 - 1.5 V
      (B605) No. 24 (+) - Chassis ground (-): IG ON and shift lever N 7.5 - 14 V
      IG ON and shift lever other than N 0 - 1.5 V
      (B605) No. 14 (+) - Chassis ground (-): IG ON and shift lever D or B 7.5 - 14 V
      IG ON and shift lever other than D or B 0 - 1.5 V
      (B605) No. 16 (+) - Chassis ground (-): IG ON and shift lever D or B 7.5 - 14 V
      IG ON and shift lever other than D or B 0 - 1.5 V
      (B605) No. 7 (+) - Chassis ground (-): IG ON and shift lever P, N or B 7.5 - 14 V
      IG ON and shift lever other than P, N or B 0 - 1.5 V

    Is the voltage within the standard value above?

    Yes  : Replace Hybrid vehicle control ECU assembly. Ref. to HYBRID ELECTRIC VEHICLE>HYBRID POWERTRAIN CONTROL MODULE .

    No  : Go to  4.

  4. CHECK Wire harness (VOLTAGE CHECK)  .
    1. Turn the ignition to OFF.
    2. Disconnect the inhibitor switch connector (T7).
    3. Turn to IG ON.
    4. Using a tester, measure the voltage between inhibitor switch connector and chassis ground.

      Connector & terminal 

      (T7) No. 7 (+) - Chassis ground (-):

    Is the voltage 7.5 - 14 V?

    Yes  : Go to  5.

    No  : Go to  6.

  5. PERFORM UNIT INSPECTION OF INHIBITOR SWITCH  .
    1. Turn the ignition to OFF.
    2. Using a tester, measure the resistance of shift position sensor unit.

      Connector & terminal 

      Connector & terminal Condition Standard
      No. 7 - No. 3: Shift lever P Less than 1 Ω
      No. 7 - No. 4: Less than 1 Ω
      No. 7 - No. 8: Less than 1 Ω
      No. 7 - No. 1:
      No. 7 - No. 2:
      No. 7 - No. 6:
      No. 7 - No. 9:      		 10 kΩ or more
      No. 7 - No. 3: Shift lever R Less than 1 Ω
      No. 7 - No. 9: Less than 1 Ω
      No. 7 - No. 1:
      No. 7 - No. 2:
      No. 7 - No. 4:
      No. 7 - No. 6:
      No. 7 - No. 8:      		 10 kΩ or more
      No. 7 - No. 2: Shift lever N Less than 1 Ω
      No. 7 - No. 4: Less than 1 Ω
      No. 7 - No. 1:
      No. 7 - No. 3:
      No. 7 - No. 6:
      No. 7 - No. 8:
      No. 7 - No. 9:      		 10 kΩ or more
      No. 7 - No. 1: Shift lever D Less than 1 Ω
      No. 7 - No. 6: Less than 1 Ω
      No. 7 - No. 2:
      No. 7 - No. 3:
      No. 7 - No. 4:
      No. 7 - No. 8:
      No. 7 - No. 9:      		 10 kΩ or more
      No. 7 - No. 1: Shift lever B Less than 1 Ω
      No. 7 - No. 6: Less than 1 Ω
      No. 7 - No. 2:
      No. 7 - No. 3:      		 10 kΩ or more
      No. 7 - No. 4: Less than 1 Ω
      No. 7 - No. 8:
      No. 7 - No. 9:      		 10 kΩ or more

    Is the resistance within the standard value above?

    Yes  : Repair or replace Wire harness between inhibitor switch and Hybrid vehicle control ECU assembly connectors, or the connectors.

    No  : Replace the inhibitor switch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TH2A)>INHIBITOR SWITCH .

  6. CHECK Wire harness AND CONNECTOR (Hybrid vehicle control ECU assembly - INHIBITOR SWITCH) (OPEN CIRCUIT)  .
    1. Disconnect Hybrid vehicle control ECU assembly connector (i369).
    2. Using a tester, measure the resistance between the Hybrid vehicle control ECU assembly connector and the inhibitor switch connector.

      Connector & terminal 

      (i369) No. 33 - (T7) No. 7:

    Is the resistance less than 1 Ω?

    Yes  : Go to  7.

    No  : Repair or replace Wire harness between inhibitor switch and Hybrid vehicle control ECU assembly connectors, or the connectors.

  7. CHECK Wire harness AND CONNECTOR (Hybrid vehicle control ECU assembly - INHIBITOR SWITCH) (SHORT TO GROUND OR LINE-TO-LINE SHORT)  .

    Using a tester, measure the resistance between terminals in inhibitor switch connector, and between inhibitor switch connector and chassis ground.

    Connector & terminal 

    (T7) No. 7 - (T7) No. 1 - 9:

    (T7) No. 7 - Chassis ground:

    Is the resistance 10 kΩ or more?

    Yes  : Replace Hybrid vehicle control ECU assembly. Ref. to HYBRID ELECTRIC VEHICLE>HYBRID POWERTRAIN CONTROL MODULE .

    No  : Repair or replace Wire harness between inhibitor switch and Hybrid vehicle control ECU assembly connectors, or the connectors.

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