HYBRID CONTROL SYSTEM, Diagnostic DTC:P0851-775

DTC Code DTC Name
P0851-775 Park / Neutral Switch Input Circuit Low

DESCRIPTION

Refer to the description for DTC P0705-757 Click here.

DTC No. DTC Detection Condition Trouble Area
P0851-775

N signal output voltage is extremely low.

(1 trip detection logic)

  • Wire harness or connector

  • Shift lever position sensor

  • Power management control ECU
Related Data List
DTC No. Data List
P0851-775 Shift Sensor SW - N

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0705-757 Click here.

INSPECTION PROCEDURE

Tech Tips

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Turn the power switch on (IG) and wait for 5 seconds or more.

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check for DTCs.

      Result
      Result Proceed to
      P0851-775 only is output. A
      P0705-757 is also output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART (P0705-757) Click here

    A

  2. CHECK SHIFT LEVER POSITION SENSOR


    1. Turn the power switch on (IG).

    2. A01FVQXE23
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A36-11 (N) - Body ground

      Power switch on (IG)

      Shift lever in N

      		 11 to 14 V

      Power switch on (IG)

      Shift lever in any position except N

      		 1.2 to 2.8 V

    3. Turn the power switch off.


    NG

    Click here

    OK

  3. CHECK FOR INTERMITTENT PROBLEMS

    Click here


    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

  4. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)


    1. Disconnect the F65 shift lever position sensor connector.

    2. Turn the power switch on (IG).

    3. A01FTL8E74
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Shift Lever Position Sensor)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F65-7 (+B) - Body ground Power switch on (IG) 11 to 14 V

      Note

      Turning the power switch on (IG) with the shift lever position sensor connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    4. Turn the power switch off.

    5. Reconnect the F65 shift lever position sensor connector.


    NG

    Click here

    OK

  5. INSPECT SHIFT LEVER POSITION SENSOR


    1. Disconnect the F65 shift lever position sensor connector.

    2. A01FRECE34
      Text in Illustration
      *a

      Component without harness connected

      (Shift Lever Position Sensor)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      7 (+B) - 2 (N) Shift lever in N Below 1 Ω
      Shift lever in any position except N 4.2 to 5.2 kΩ

    3. Reconnect the F65 shift lever position sensor connector.


    NG

    REPLACE SHIFT LEVER POSITION SENSOR Click here

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. CHECK HARNESS AND CONNECTOR (SHIFT LEVER POSITION SENSOR - POWER MANAGEMENT CONTROL ECU)


    1. Disconnect the F65 shift lever position sensor connector.

    2. Disconnect the A35 power management control ECU connector.

    3. A01FVMKE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Shift Lever Position Sensor)
      *b

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      F65-7(+B) - A35-9(PSFT) Power switch off Below 1 Ω
      F65-7(+B) or A35-9(PSFT) - Body ground and other terminals Power switch off 10 Ω or higher

    4. Reconnect the A35 power management control ECU connector.

    5. Reconnect the F65 shift lever position sensor connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPAIR OR REPLACE POWER SOURCE CIRCUIT