HYBRID CONTROL SYSTEM, Diagnostic DTC:P3177-864

DTC Code DTC Name
P3177-864 Transmission Oil Pump Motor Coil Temperature Sensor Circuit High

DESCRIPTION

Refer to the description for DTC P3176-863 Click here.

DTC No. INF Code DTC Detection Condition Trouble Area
P3177 864 Open or short to +B in the oil pump motor temperature sensor circuit

  • Hybrid vehicle control ECU

  • Oil with motor pump assembly

  • Wire harness or connector

WIRING DIAGRAM

Refer to the wiring diagram for DTC P3176-863 Click here.

INSPECTION PROCEDURE

Tech Tips

The characteristics of the oil pump motor temperature sensor resistance (reference values) are as follows:

Tester Connection Resistance Temperature
TOPM - E2 121 to 129.7 kΩ 20°C (68° F)
TOPM - E2 50.49 to 55.01 kΩ 40°C (104° F)
TOPM - E2 11.26 to 12.99 kΩ 80°C (176° F)

PROCEDURE


  1. CLEAR DTC


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    4. Read and record the DTCs and freeze frame data.

    5. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    6. Clear DTCs and freeze frame data.


    NEXT

  2. READ VALUE USING INTELLIGENT TESTER (OPM TEMPERATURE)


    1. Select the following menu items: Select: Powertrain / Hybrid Control / Data List / OPM Temperature.

    2. Read the data list.

      Result
      Result Proceed to
      0°C (32° F) (open or short to +B) A
      Approximately equal to the actual temperature B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  3. CHECK HARNESS AND CONNECTOR


    1. A01GYIVE03

      Turn the power switch off.

    2. Disconnect connectors A76 and E58 from the hybrid vehicle control ECU.

    3. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E58-34 (TOPM) - A76-5 (E2) or Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      E58-34 (TOPM) - A76-5 (E2) 20°C (68° F) 121 to 129.7 kΩ
      E58-34 (TOPM) - A76-5 (E2) 40°C (104° F) 50.49 to 55.01 kΩ
      E58-34 (TOPM) - A76-5 (E2) 80°C (176° F) 11.26 to 12.99 kΩ

    NG

    CHECK OIL WITH MOTOR PUMP ASSEMBLY (OIL PUMP MOTOR TEMPERATURE SENSOR) Click here

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

  4. CHECK OIL WITH MOTOR PUMP ASSEMBLY (OIL PUMP MOTOR TEMPERATURE SENSOR)


    1. A01H1RP

      Turn the power switch off.

    2. Disconnect the oil pump motor temperature sensor connector.

    3. Turn the power switch on (IG).

    4. A01GY1TE08

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E67-1 (OMT) - E67-2 (OMTG) Power switch on (IG) Below 1 V
      E67-2 (OMTG) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the oil pump motor temperature sensor connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      E67-1 (OMT) - E67-2 (OMTG) 20°C (68° F) 121 to 129.7 kΩ
      E67-1 (OMT) - E67-2 (OMTG) 40°C (104° F) 50.49 to 55.01 kΩ
      E67-1 (OMT) - E67-2 (OMTG) 80°C (176° F) 11.26 to 12.99 kΩ

    NG

    REPLACE OIL WITH MOTOR PUMP ASSEMBLY Click here

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR