HYBRID CONTROL SYSTEM, Diagnostic DTC:P072012, P072014, P072031

DTC Code DTC Name
P072012 Output Speed Sensor Circuit Short to Battery
P072014 Output Speed Sensor Circuit Short to Ground or Open
P072031 Output Speed Sensor No Signal

DTC SUMMARY


  1. MALFUNCTION DESCRIPTION

    This DTC indicates that the ECU recognition voltage value from the transmission revolution sensor (SP2) is abnormal, or the signal (pulse) from the transmission revolution sensor (SP2) has been interrupted. The cause of this malfunction may be one of the following:


    • Open or short between transmission revolution sensor (SP2) and hybrid vehicle control ECU assembly

    • Transmission revolution sensor (SP2) malfunction

DESCRIPTION

The transmission revolution sensor (SP2) detects the output shaft rotation speed and sends it to the hybrid vehicle control ECU assembly.

Based on the motor resolver signal and the transmission revolution sensor (SP2) signal, the hybrid vehicle control ECU assembly controls torque and shift timing.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P072012 Output Speed Sensor Circuit Short to Battery

Turn the power switch on (READY) and wait for 3 seconds or more. The transmission revolution sensor (SP2) input signal voltage is higher than 1.8 V for 4.5 seconds or more.

(1-trip detection logic)

  • Transmission revolution sensor (SP2)

  • Harness and connector

  • Hybrid vehicle control ECU assembly

 Comes on

Master Warning Light:

Comes on
P072014 Output Speed Sensor Circuit Short to Ground or Open

Turn the power switch on (READY) and wait for 3 seconds or more. The transmission revolution sensor (SP2) input signal voltage is below 0.2 V for 4.5 seconds or more.

(1-trip detection logic)

  • Transmission revolution sensor (SP2)

  • Harness and connector

  • Hybrid vehicle control ECU assembly

 Comes on

Master Warning Light:

Comes on
P072031 Output Speed Sensor No Signal

The transmission revolution sensor (SP2) signal is not input for 5 seconds or more when the vehicle speed is 20km/h (12.4 mph) or more and shift change is not performed.

(1-trip detection logic)

  • Transmission revolution sensor (SP2)

  • Harness and connector

  • Hybrid vehicle control ECU assembly

 Comes on

Master Warning Light:

Comes on
Related Data List
DTC No. Data List
P072012

  • Calculated Vehicle Speed (Transmission)*1

  • Calculated Vehicle Speed Sensor Voltage (Transmission)*2
P072014
P072031
*1: Equivalent to actual vehicle speed
*2: 0.1 to 1.9 V with engine idling when normal

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.

Click here


    When the DTC P072012 or P072014 is output:

  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 off and wait for 2 minutes or more.

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

  6. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.

  7. Check the DTC judgment result.

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.


WIRING DIAGRAM

B000SPKE01
*a No. 1 Engine Room Relay Block Connector
*b Transmission Revolution Sensor (SP2)
*c Hybrid Vehicle Control ECU Assembly

PROCEDURE


  1. CHECK TRANSMISSION REVOLUTION SENSOR (SP2 TERMINAL)


    1. B000O32C02
      *a No. 1 Engine Room Relay Block Connector

      Disconnect the GA1 No. 1 engine room relay block connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      GA1-47 - Body ground Always 99 to 101 Ω

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      GA1-48 - Body ground Power switch on (IG) 11 to 14 V

    5. Reconnect the GA1 No. 1 engine room relay block connector.

    6. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (NO. 1 ENGINE ROOM RELAY BLOCK CONNECTOR - HYBRID VEHICLE CONTROL ECU ASSEMBLY) Click here

    OK

  2. INSPECT HARNESS AND CONNECTOR (NO. 1 ENGINE ROOM RELAY BLOCK CONNECTOR - TRANSMISSION REVOLUTION SENSOR (SP2))


    1. B000SJ5C02
      *1 No. 1 Engine Room Relay Block Connector
      *a

      Component without harness connected

      (to Transmission Revolution Sensor (SP2) Connector)

      Disconnect the GA1 No. 1 engine room relay block connector.

    2. Disconnect the G33 transmission revolution sensor (SP2) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      GA1-48 - G33-2 Always Below 1 Ω
      GA1-47 - G33-1 Always Below 1 Ω
      GA1-48 or G33-2 - Body ground Always 10 kΩ or higher
      GA1-47 or G33-1 - Body ground Always 10 kΩ or higher

    4. Reconnect the G33 transmission revolution sensor (SP2) connector.

    5. Reconnect the GA1 No. 1 engine room relay block connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE TRANSMISSION REVOLUTION SENSOR (SP2) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. CHECK HARNESS AND CONNECTOR (NO. 1 ENGINE ROOM RELAY BLOCK CONNECTOR - HYBRID VEHICLE CONTROL ECU ASSEMBLY)


    1. Disconnect the A22 hybrid vehicle control ECU assembly connector.

    2. B000S49C02
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU Assembly)
      *1 No. 1 Engine Room Relay Block Connector

      Disconnect the GA1 No. 1 engine room relay block connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A22-33 (SP2B) - GA1-48 Always Below 1 Ω
      A22-32 (SP2O) - GA1-47 Always Below 1 Ω
      A22-33 (SP2B) or GA1-48 - Body ground Always 10 kΩ or higher
      A22-32 (SP2O) or GA1-47 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    4. Reconnect the GA1 No. 1 engine room relay block connector.

    5. Reconnect the A22 hybrid vehicle control ECU assembly connector.


    OK

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR