HYBRID CONTROL SYSTEM, Diagnostic DTC:P26009E

DTC Code DTC Name
P26009E Motor/Generator Coolant Pump "A" Control Circuit Stuck On

DTC SUMMARY

Refer to the description for DTC P260031.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P26009E Motor/Generator Coolant Pump "A" Control Circuit Stuck On

When the OIL PMP relay is off, the NOPM input pulse signal is received.

(1 trip detection logic)

  • OIL PMP relay

  • Hybrid vehicle control ECU assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Comes on
Related Data List
DTC No. Data List
P0AA1-231

  • Target Motor/Generator Cooling Oil Pump Motor Duty

  • Motor/Generator Cooling Oil Pump Motor Revolution

  • Motor/Generator Cooling Oil Pump Motor Power Relay Request

Tech Tips

The oil pump with motor assembly cannot be activated only with the OIL PMP relay on. It is activated after receiving the command signals (OPM1) from the hybrid vehicle control ECU.

CONFIRMATION DRIVING PATTERN

Tech Tips

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch on (IG) and turn the GTS on.

  5. Enter the following menus: Powertrain / Hybrid Control / Active Test / T/M Cooler Oil Pump.

  6. According to the display on the GTS, perform the Active Test and set the duty to 90 %.

    Tech Tips

    The Active Test cannot be performed if the duty ratio is set to 50 % or lower or 95 % or higher, or if the ambient temperature is -10 °C (14 °F) or lower.

  7. According to the display on the GTS, read the Data List and check that the value of "Motor/Generator Cooling Oil Pump Motor Revolution" is between 500 rpm and 7000 rpm.

WIRING DIAGRAM

Refer to the wiring diagram for DTC P260031.

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PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (L TERMINAL VOLTAGE)


    1. B006ITXN02

      Disconnect the A30 oil pump with motor assembly connector.

    2. Turn the power switch on (IG).

    3. B006J6DC08
      *a

      Front view of wire harness connector

      (to Oil Pump with Motor Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A30-4 (L) - Body ground Power switch on (IG) Below 1 V

      Note

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

    4. Turn the power switch off.

    5. Reconnect the A30 oil pump with motor assembly connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (OIL PUMP WITH MOTOR ASSEMBLY - OIL PMP RELAY)


    1. Disconnect the A30 oil pump with motor assembly connector.

    2. Remove the OIL PMP relay from the No. 2 relay block assembly.

    3. Turn the power switch on (IG).

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

      B006IPGC02
      *1 No. 2 Relay Block Assembly *2 OIL PMP Relay
      *a

      Front view of wire harness connector

      (to Oil Pump with Motor Assembly)

      		 - -
      Standard Voltage
      Tester Connection Condition Specified Condition
      A30-4 (L) or 5 (OIL PMP relay) - Body ground and other terminals Power switch on (IG) Below 1 V

      Note


      • Do not apply excessive force when using the probes of the tester to perform the inspection. If excessive force is used, the terminals will be damaged.

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

    5. Turn the power switch off.

    6. Install the OIL PMP relay.

    7. Reconnect the A30 oil pump with motor assembly connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - OIL PMP RELAY)


    1. Disconnect the A41 hybrid vehicle control ECU connector.

    2. Remove the OIL PMP relay from the No. 2 relay block assembly.

    3. Turn the power switch on (IG).

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

      B006IHZC02
      *1 No. 2 Relay Block Assembly *2 OIL PMP Relay
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU)

      		 - -
      Standard Voltage
      Tester Connection Condition Specified Condition
      A41-12 (OPM2) or 1 (OIL PMP relay) - Body ground and other terminals Power switch on (IG) Below 1 V

      Note


      • Do not apply excessive force when using the probes of the tester to perform the inspection. If excessive force is used, the terminals will be damaged.

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

    5. Turn the power switch off.

    6. Install the OIL PMP relay.

    7. Reconnect the A41 hybrid vehicle control ECU connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE OIL PMP RELAY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR