Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: DC/DC Converter Current Sensor Circuit Current Out of Range (P31531D)

Toyota Corolla Cross (2022-2024) Service Manual / Engine & Hybrid System / Hybrid / Battery Control / Motor Generator Control System / DC/DC Converter Current Sensor Circuit Current Out of Range (P31531D)

DTC SUMMARY

MALFUNCTION DESCRIPTION

This DTC is stored if the value of the reactor current sensor fluctuates excessively. The cause of this malfunction may be one of the following:

Area

Main Malfunction Description

Hybrid vehicle transaxle assembly

  • Open or short circuit in the motor, generator or rear motor coils
  • Motor (MG2), generator (MG1) or rear motor (MGR) internal malfunction (iron particles or damage from foreign objects)

Rear traction motor with transaxle assembly

  • Open or short circuit in the rear motor coil
  • rear motor (MGR) internal malfunction (iron particles or damage from foreign objects)

Resolver

Open or short circuit in the motor resolver, generator resolver or rear motor resolver circuit

Inverter
  • Inverter internal circuit malfunction
  • Malfunction in ECU that controls the inverter
  • Malfunction in sensor for inverter control (current sensor, voltage sensors (VH, VL), etc.)

HV battery high-voltage line circuit

Open in an HV floor under wire

DESCRIPTION

For a description of the inverter.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Note

P31531D

DC/DC Converter Current Sensor Circuit Current Out of Range

Value of reactor current sensor fluctuates excessively

(1 trip detection logic)

  • Inverter with converter assembly
  • Motor cable
  • HV floor under wire
  • Hybrid vehicle transaxle assembly
  • Rear traction motor with transaxle assembly
  • HV battery junction block assembly
  • Service plug grip
  • PCU NO. 1 fuse
  • Hybrid vehicle control ECU
  • Wire harness or connector

Does not come on

Master Warning:

Comes on

SAE Code:

P3153

CONFIRMATION DRIVING PATTERN

HINT:

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

  1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  2. Turn the ignition switch off and wait for 2 minutes or more.
  3. Turn the ignition switch to ON and wait for 5 seconds or more.
  4. Turn the ignition switch to ON (READY) and wait for 5 seconds or more.
  5. Drive the vehicle on urban roads for approximately 10 minutes, mainly using the engine.
  6. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
  7. Check the DTC judgment result.

    HINT:

    • 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, perform driving pattern again.

WIRING DIAGRAM

Refer to the wiring diagram for the Generator Resolver Circuit.

Click here

Refer to the wiring diagram for the Motor Resolver Circuit.

Click here

Refer to the wiring diagram for the Rear Motor Resolver Circuit.

Click here

Refer to the wiring diagram for the Generator High-voltage Circuit.

Click here

Refer to the wiring diagram for the Motor High-voltage Circuit.

Click here

Refer to the wiring diagram for the Rear Motor High-voltage Circuit.

Click here

Refer to the wiring diagram for the Inverter Low-voltage Circuit.

Click here

Refer to the wiring diagram for the HV Battery High-voltage Line Circuit.

Click here

CAUTION / NOTICE / HINT

CAUTION:

Refer to the precautions before inspecting high voltage circuit.

Click here

NOTICE:

  • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Click here

  • When disconnecting and reconnecting the auxiliary battery.

    HINT:

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

    Click here

HINT:

  • P31531D may be output as a result of the malfunction indicated by the DTCs in table below.
    1. The chart above is listed in inspection order of priority.
    2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
Table 1

Malfunction Content

System

Relevant DTC

Insulation malfunction

Hybrid control system

P1C7C49

Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure

P1C7D49

Hybrid/EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure

P1C7E49

Hybrid/EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure

P1C7F49

Hybrid/EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure

P1C8049

Hybrid/EV Battery Voltage System Isolation (Rear Motor Area) Internal Electronic Failure

System main relay or high voltage circuit malfunction

Hybrid control system

P0AD911

Hybrid/EV Battery Positive Contactor Circuit Short to Ground

P0AD915

Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open

P0ADD11

Hybrid/EV Battery Negative Contactor Circuit Short to Ground

P0ADD15

Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open

P1C8449

High Voltage Power Resource Circuit Short during Ready ON

HV battery malfunction

Hybrid control system

P0A1F94

Hybrid/EV Battery Energy Control Module Unexpected Operation

P0ABF00

Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance

P0B231C

Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range

P31B300

Hybrid/EV Battery Voltage High

U011187

Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message

Hybrid battery system

P056014

System Voltage (BATT) Circuit Short to Ground or Open

P060629

Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Signal Invalid

P060687

Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message

P060A47

Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure

P060A87

Hybrid/EV Battery Energy Control Module Processor from Monitoring Processor Missing Message

P060B49

Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure

P0ABF11

Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground

P0ABF15

Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open

P0ABF28

Hybrid/EV Battery Current Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure

P0ABF2A

Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range

P0B0E11

Hybrid/EV Battery Current Sensor "B" Circuit Short to Ground

P0B0E15

Hybrid/EV Battery Current Sensor "B" Circuit Short to Auxiliary Battery or Open

P0B1362

Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure

P0E2D00

Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance

P1A001C

Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range

P1A6017

Hybrid/EV Battery Stack 2 Cell Circuit Voltage Above Threshold

P1A6116

Hybrid/EV Battery Stack 2 Cell Circuit Voltage Below Threshold

P1A8100

Hybrid/EV Battery Stack 1 Delta SOC High (Extreme)

P1A8600

Hybrid/EV Battery Stack 2 Delta SOC High (Extreme)

P1AFD00

Flying Capacitor Circuit Voltage Out of Range

P1AFD1C

Flying Capacitor/Internal Control Module Hybrid/EV Battery Monitor Voltage Out of Range

P1CBB12

Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery

P1CBB14

Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open

P1CC81E

Hybrid/EV Battery Stack 1 Voltage Difference Out of Range

P1CC91E

Hybrid/EV Battery Stack 2 Voltage Difference Out of Range

P301A1C

Hybrid Battery Stack 1 Cell Voltage Detection Voltage Out of Range

P31AA17

Hybrid/EV Battery Stack 1 Cell Circuit Voltage Above Threshold

P31AB16

Hybrid/EV Battery Stack 1 Cell Circuit Voltage Below Threshold

P33DA1E

Hybrid/EV Battery Stack 1 Circuit Resistance Out of Range

P33DB1E

Hybrid/EV Battery Stack 2 Circuit Resistance Out of Range

P33E01B

Hybrid/EV Battery Stack 1 Circuit Resistance Above Threshold

P33E11B

Hybrid/EV Battery Stack 2 Circuit Resistance Above Threshold

P33EC16

(Extreme) Hybrid/EV Battery Stack 1 Cell Circuit Voltage Below Threshold

P33ED16

(Extreme) Hybrid/EV Battery Stack 2 Cell Circuit Voltage Below Threshold

U029387

Lost Communication with Hybrid/EV Powertrain Control Module Missing Message

U115087

Lost Communication with Hybrid Powertrain Control Module (Hybrid/EV Battery Local Bus) Missing Message

Table 2

Malfunction Content

System

Relevant DTC

Microcomputer malfunction

Motor generator control system

P0A1A47

Generator Control Module Watchdog / Safety MC Failure

P0A1A49

Generator Control Module Internal Electronic Failure

P0A1B1F

Generator Control Module Circuit Intermittent

P0A1B47

Generator Control Module Watchdog / Safety MC Failure

P0A1C47

Drive Motor "B" Control Module Watchdog / Safety MCU Failure

P0A1C49

Drive Motor "B" Control Module Internal Electronic Failure

P1C2A1C

Generator A/D Converter Circuit Circuit Voltage Out of Range

P1C2A49

Generator A/D Converter Circuit Internal Electronic Failure

P1C2A71

Generator A/D Converter Circuit Actuator Stuck

P1C2B1C

Drive Motor "A" Control Module A/D Converter Circuit Voltage Out of Range

P1C2B49

Drive Motor "A" Control Module A/D Converter Circuit Internal Electronic Failure

P1C2B71

Drive Motor "A" Control Module A/D Converter Circuit Actuator Stuck

P1C2C1C

Drive Motor "B" Control Module AD Converter Circuit Voltage Out of Range

P1C2C49

Drive Motor "B" Control Module AD Converter Internal Electronic Failure

P1C2C71

Drive Motor "B" Control Module A/D Converter Circuit Actuator Stuck

P310A83

Communication Error from Drive Motor "B" to Drive Motor "A" Value of Signal Protection Calculation Incorrect

P310A86

Communication Error from Drive Motor "B" to Drive Motor "A" Signal (Some Circuit Quantity, Reported via Serial Data) Invalid

P310A87

Communication Error from Drive Motor "B" to Drive Motor "A" Missing Message

P310B83

Communication Error from Drive Motor "A" to Drive Motor "B" Value of Signal Protection Calculation Incorrect

P310B86

Communication Error from Drive Motor "A" to Drive Motor "B" Signal (Some Circuit Quantity, Reported via Serial Data) Invalid

P310B87

Communication Error from Drive Motor "A" to Drive Motor "B" Missing Message

P313383

Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect

P313386

Communication Error from Generator to Drive Motor "A" Signal Invalid

P313387

Communication Error from Generator to Drive Motor "A" Missing Message

P313483

Communication Error from Drive Motor "A" to Generator Value of Signal Protection Calculation Incorrect

P313486

Communication Error from Drive Motor "A" to Generator Signal Invalid

P313487

Communication Error from Drive Motor "A" to Generator Missing Message

P32BF83

Lost Communication between Drive Motor "A" and "B" (Drive Motor "A") Value of Signal Protection Calculation Incorrect

P32BF86

Lost Communication between Drive Motor "A" and "B" (Drive Motor "A") Signal (Some Circuit Quantity, Reported via Serial Data) Invalid

P32BF87

Lost Communication between Drive Motor "A" and "B" (Drive Motor "A") Missing Message

P32CF83

Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Value of Signal Protection Calculation Incorrect

P32CF86

Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Signal (Some Circuit Quantity, Reported via Serial Data) Invalid

P32CF87

Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Missing Message

Hybrid control system

P0A1B49

Drive Motor "A" Control Module Internal Electronic Failure

Power source circuit malfunction

Motor generator control system

P06B01C

Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range

P06B31C

Drive Motor "B" Control Module Position Sensor REF Power Source Circuit Voltage Out of Range

P06D61C

Generator Control Module Offset Power Circuit Voltage Out of Range

P19F81C

Generator Control Module Offset Power Circuit Voltage Out of Range

P19F91C

Drive Motor "B" Control Module Offset Power Circuit Voltage Out of Range

P26DF1C

Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range

Communication malfunction

Motor generator control system

U11B387

Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Missing Message

Hybrid control system

U117E87

Lost Communication with Drive Motor Control Module "A" (ch4) Missing Message

Sensor and actuator circuit malfunction

Motor generator control system

P0A3F16

Drive Motor "A" Position Sensor Circuit Voltage Below Threshold

P0A3F21

Drive Motor "A" Position Sensor Signal Amplitude < Minimum

P0A3F22

Drive Motor "A" Position Sensor Signal Amplitude > Maximum

P0A4516

Drive Motor "B" Position Sensor Circuit Voltage Below Threshold

P0A4521

Drive Motor "B" Position Sensor Signal Amplitude < Minimum

P0A4522

Drive Motor "B" Position Sensor Signal Amplitude > Maximum

P0A4B16

Generator Position Sensor Circuit Voltage Below Threshold

P0A4B21

Generator Position Sensor Signal Amplitude < Minimum

P0A4B22

Generator Position Sensor Signal Amplitude > Maximum

P0A6012

Drive Motor "A" Phase V Current (High Resolution) Circuit Short to Battery

P0A6014

Drive Motor "A" Phase V Current (High Resolution) Circuit Short to Ground or Open

P0A601C

Drive Motor "A" Phase V Current (High Resolution) Circuit Voltage Out of Range

P0A6312

Drive Motor "A" Phase W Current (High Resolution) Circuit Short to Battery

P0A6314

Drive Motor "A" Phase W Current (High Resolution) Circuit Short to Ground or Open

P0A631C

Drive Motor "A" Phase W Current (High Resolution) Circuit Voltage Out of Range

P0A6912

Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Battery

P0A6914

Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Ground or Open

P0A691C

Drive Motor "B" Phase V Current(High Resolution) Circuit Voltage Out of Range

P0A6C12

Drive Motor "B" Phase W Current(High Resolution) Circuit Short to Battery

P0A6C14

Drive Motor "B" Phase W Current(High Resolution) Circuit Short to Ground or Open

P0A6C1C

Drive Motor "B" Phase W Current(High Resolution) Circuit Voltage Out of Range

P0BE512

Drive Motor "A" Phase U Current Sensor Circuit Short to Battery

P0BE514

Drive Motor "A" Phase U Current Sensor Circuit Short to Ground or Open

P0BE528

Drive Motor "A" Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0BE912

Drive Motor "A" Phase V Current Sensor Circuit Short to Battery

P0BE914

Drive Motor "A" Phase V Current Sensor Circuit Short to Ground or Open

P0BE928

Drive Motor "A" Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0BED12

Drive Motor "A" Phase W Current Sensor Circuit Short to Battery

P0BED14

Drive Motor "A" Phase W Current Sensor Circuit Short to Ground or Open

P0BED28

Drive Motor "A" Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0BF112

Drive Motor "B" Phase U Current Sensor Circuit Short to Battery

P0BF114

Drive Motor "B" Phase U Current Sensor Circuit Short to Ground or Open

P0BF128

Drive Motor "B" Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0BF512

Drive Motor "B" Phase V Current Sensor Circuit Short to Battery

P0BF514

Drive Motor "B" Phase V Current Sensor Circuit Short to Ground or Open

P0BF528

Drive Motor "B" Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0BF912

Drive Motor "B" Phase W Current Sensor Circuit Short to Battery

P0BF914

Drive Motor "B" Phase W Current Sensor Circuit Short to Ground or Open

P0BF928

Drive Motor "B" Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0BFD62

Drive Motor "A" Phase U-V-W Current Sensor Signal Compare Failure

P0BFE62

Drive Motor "B" Phase U-V-W Current Sensor Signal Compare Failure

P0C5013

Drive Motor "A" Position Sensor Circuit "A" Circuit Open

P0C5016

Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Below Threshold

P0C5017

Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Above Threshold

P0C5513

Drive Motor "B" Position Sensor Circuit "A" Circuit Open

P0C5516

Drive Motor "B" Position Sensor Circuit "A" Circuit Voltage Below Threshold

P0C5517

Drive Motor "B" Position Sensor Circuit "A" Circuit Voltage Above Threshold

P0C5A13

Drive Motor "A" Position Sensor Circuit "B" Circuit Open

P0C5A16

Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Below Threshold

P0C5A17

Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Above Threshold

P0C5F13

Drive Motor "B" Position Sensor Circuit "B" Circuit Open

P0C5F16

Drive Motor "B" Position Sensor Circuit "B" Circuit Voltage Below Threshold

P0C5F17

Drive Motor "B" Position Sensor Circuit "B" Circuit Voltage Above Threshold

P0C6413

Generator Position Sensor Circuit "A" Circuit Open

P0C6416

Generator Position Sensor Circuit "A" Circuit Voltage Below Threshold

P0C6417

Generator Position Sensor Circuit "A" Circuit Voltage Above Threshold

P0C6913

Generator Position Sensor Circuit "B" Circuit Open

P0C6916

Generator Position Sensor Circuit "B" Circuit Voltage Below Threshold

P0C6917

Generator Position Sensor Circuit "B" Circuit Voltage Above Threshold

P0D2D16

Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Below Threshold

P0D2D17

Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Above Threshold

P0DFA62

Generator Phase U-V-W Current Sensor Signal Compare Failure

P0E0012

Generator Phase U Current Sensor Circuit Short to Battery

P0E0014

Generator Phase U Current Sensor Circuit Short to Ground or Open

P0E0028

Generator Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0E0412

Generator Phase V Current Sensor Circuit Short to Battery

P0E0414

Generator Phase V Current Sensor Circuit Short to Ground or Open

P0E0428

Generator Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0E0812

Generator Phase W Current Sensor Circuit Short to Battery

P0E0814

Generator Phase W Current Sensor Circuit Short to Ground or Open

P0E0828

Generator Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0E3116

DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Below Threshold

P0E3117

DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Above Threshold

P0E5111

DC/DC Converter Current Sensor Circuit Short to Ground

P0E5115

DC/DC Converter Current Sensor Circuit Short to Battery or Open

P0E5128

DC/DC Converter Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

P0E512A

DC/DC Converter Current Sensor Signal Stuck In Range

P1CAC49

Generator Position Sensor Internal Electronic Failure

P1CAD49

Drive Motor "A" Position Sensor Internal Electronic Failure

P1CAE49

Drive Motor "B" Position Sensor Internal Electronic Failure

P1CAF38

Generator Position Sensor REF Signal Cycle Malfunction Signal Frequency Incorrect

P1CB038

Drive Motor "A" Position Sensor REF Signal Frequency Incorrect

P1CB138

Drive Motor "B" Position Sensor REF Signal Frequency Incorrect

P1CFF62

Hybrid/EV Battery Current/DC/DC Converter Current Signal Compare Failure

Hybrid control system

P0C7600

Hybrid/EV Battery System Discharge Time Too Long

P0D2D1C

Drive Motor "A" Inverter Voltage Sensor Voltage Out of Range

P0E311C

Boosting Converter Voltage Sensor "A" Voltage Out of Range

System malfunction

Motor generator control system

P0A9000

Drive Motor "A" Performance

P0A9100

Drive Motor "B" Performance

P0A9200

Hybrid/EV Generator Performance

P0BFF1D

Drive Motor "A" Circuit Current Out of Range

P0C021D

Drive Motor "B" System Circuit Current Out of Range

P0C1900

Drive Motor "A" Execution Torque Performance

P0C1A00

Drive Motor "B" Execution Torque Performance

P0CA300

DC/DC Converter Step Up Voltage Performance

P0E7100

Generator Execution Torque Performance

P1CA51D

Hybrid/EV Generator Circuit Current Out of Range

Hybrid control system

P0AA649

Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure

PROCEDURE

1.

CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)

Click here

Result

Proceed to

OK

A

NG (The connector is not connected securely.)

B

NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.)

C

B

CONNECT SECURELY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

A

2.

CHECK GENERATOR RESOLVER CIRCUIT

Click here

NEXT

3.

CHECK MOTOR RESOLVER CIRCUIT

Click here

NEXT

4.

CHECK REAR MOTOR RESOLVER CIRCUIT

Click here

NEXT

5.

CHECK GENERATOR HIGH-VOLTAGE CIRCUIT

Click here

NEXT

6.

CHECK MOTOR HIGH-VOLTAGE CIRCUIT

Click here

NEXT

7.

CHECK REAR MOTOR HIGH-VOLTAGE CIRCUIT

Click here

NEXT

8.

CHECK HV BATTERY HIGH-VOLTAGE LINE CIRCUIT

Click here

NEXT

9.

CHECK INVERTER LOW-VOLTAGE CIRCUIT

Click here

HINT:

If the "Inverter Low-voltage Circuit" inspection results are normal, perform the next step.

NEXT

REPLACE INVERTER WITH CONVERTER ASSEMBLY

    READ NEXT:

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