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. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0851-775 Park / Neutral Switch Input Circuit Low

N signal output voltage is extremely low.

(1 trip detection logic)

  • Wire harness or connector

  • Shift lever position sensor

  • Hybrid vehicle control ECU assembly

 Does not come on

Master Warning Light:

Comes on
Related Data List
DTC No. ECU Data List
P0851-775 Shift Sensor SW - N

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0705-757.

Click here

CAUTION / NOTICE / HINT

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.


      Powertrain > Hybrid Control > Trouble Codes
      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. B003YDCC40
      *a

      Component with harness connected

      (Hybrid Vehicle Control ECU Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A85-16 (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.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Click here

    OK

  3. CHECK FOR INTERMITTENT PROBLEMS

    Click here

    Result
    Proceed to
    OK
    NG

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

  4. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

    Result
    Proceed to
    OK
    NG

    1. Disconnect the F67 shift lever position sensor connector.

    2. Turn the power switch on (IG).

    3. B003YIFC28
      *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 Condition Specified Condition
      F67-7 (+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 F67 shift lever position sensor connector.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (SHIFT LEVER POSITION SENSOR - HYBRID VEHICLE CONTROL ECU ASSEMBLY) Click here

    OK

  5. INSPECT SHIFT LEVER POSITION SENSOR


    1. Disconnect the F67 shift lever position sensor connector.

    2. B003YIYC15
      *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 F67 shift lever position sensor connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    NG

    REPLACE SHIFT LEVER POSITION SENSOR Click here

  6. CHECK HARNESS AND CONNECTOR (SHIFT LEVER POSITION SENSOR - HYBRID VEHICLE CONTROL ECU ASSEMBLY)

    Result
    Proceed to
    OK
    NG

    1. Disconnect the F67 shift lever position sensor connector.

    2. Disconnect the A85 hybrid vehicle control ECU assembly connector.

    3. B003YLDC02
      *a

      Front view of wire harness connector

      (to Shift Lever Position Sensor)
      *b

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F67-7 (+B) - A85-1 (PSFT) Power switch off Below 1 Ω
      F67-7 (+B) or A85-1 (PSFT) - Body ground and other terminals Power switch off 10 kΩ or higher

    4. Reconnect the A85 hybrid vehicle control ECU assembly connector.

    5. Reconnect the F67 shift lever position sensor connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR