Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GCRB
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): DIAGNOSIS SYSTEM; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

DIAGNOSIS SYSTEM

DESCRIPTION

(a) The hybrid vehicle control ECU has a self-diagnosis system. If the computer, hybrid control system, or a component is not working properly, the ECU records the conditions that relate to the fault. The ECU also provides other appropriate messages on the multi-information display, such as the HV system warning message, HV battery warning message, or discharge warning message.

  • When troubleshooting OBD II (On-Board Diagnostics) vehicles, the Techstream (complying with SAE J1978) must be connected to the DLC3 (Data Link Connector 3) of the vehicle. Various data in the vehicle ECM (Engine Control Module) can then be read.
  • OBD II regulations require that the vehicle's on-board computer illuminates the MIL (Malfunction Indicator Lamp) on the instrument panel when the computer detects a malfunction in:
    1. The emission control system components.
    2. The powertrain control components (which affect vehicle emissions).
    3. The computer itself.

      In addition, the applicable DTCs prescribed by SAE J2012 are recorded in the hybrid vehicle control ECU memory. If the malfunction does not recur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain recorded in the hybrid vehicle control ECU memory.

  • To check for DTCs, connect the Techstream to the DLC3. The Techstream displays DTCs, freeze frame data, and a variety of hybrid control system data. The DTCs and freeze frame data can be cleared with the Techstream. In order to enhance the OBD function on vehicles and develop the off-board diagnosis system, Controller Area Network (CAN) communication is used in this system. CAN is a network which uses a pair of data transmission lines spanning multiple computers and sensors. It allows for high speed communications between the systems and simplification of the wire harness connections.

2 TRIP DETECTION LOGIC

Following is the description for storage of DTC using "2 trip detection logic".

  • When a malfunction is first detected, the malfunction is temporarily stored in the hybrid vehicle control ECU memory (1st trip). If the same malfunction is detected during the next driving cycle, the MIL is illuminated (2nd trip).

FREEZE FRAME DATA

  • The hybrid vehicle control ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, as well as other data recorded at the time of a malfunction.

AUXILIARY BATTERY VOLTAGE

Standard Voltage:

Switch Condition

Specified Condition

Power switch on (IG)

11 to 14 V
  • If voltage is below 11 V, recharge or replace the auxiliary battery.

    NOTICE:

    After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2019]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2019 - 04/2020]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

MIL (Malfunction Indicator Lamp)

(a) The MIL is illuminated when the power switch is first turned on (IG), before the READY light comes on.

(b) When the READY indicator turns on, the MIL should turn off. If the MIL remains illuminated, the diagnosis system has detected a malfunction or abnormality in the system.

HINT:

If the MIL is not illuminated when the power switch is first turned on (IG), check the MIL circuit.

for SFI System: Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: MIL Circuit

RELEVANT SYSTEMS CHECK

The inspection areas and outline of the inspection for each circuit are listed below.

Inspection Details of Relevant Systems

System to be Inspected

Malfunction Possibility

Inspection Content

Motor Resolver Circuit

Motor resolver signal
  • Open or short circuit in the motor resolver, connectors or cables

Motor High-voltage Circuit

Motor (MG2) output
  • Open or short circuit in the motor (MG2), connectors or cables

Generator Resolver Circuit

Generator resolver signal
  • Open or short circuit in the generator resolver, connectors or cables

Generator High-voltage Circuit

Generator (MG1) output
  • Open or short circuit in the generator (MG1), connectors or cables

Inverter Low-voltage Circuit

Power supply voltage from +B or communication between hybrid vehicle control ECU and motor generator control ECU
  • Open or short circuit in communication line between hybrid vehicle control ECU and motor generator control ECU
  • Open or short circuit in the +B or ground lines
  • Fuse is blown

HV Battery High-voltage Line Circuit

High voltage power supply from HV battery
  • Open or short circuit in the system main relay, connectors or cables

Cooling System

Temperature abnormally high
  • Grille blockage
  • Whether coolant is present
  • Whether there is a possibility that coolant was frozen when malfunction occurs
  • Cooling hose blockage
  • HV radiator fan operation

Shutdown Signal Circuit

Shutdown signal
  • Open or short circuit in shutdown signal communication line between hybrid vehicle control ECU and motor generator ECU

DTC PRIORITY LEVEL AND TROUBLE AREAS

  • Each DTC diagnostic procedure for the hybrid control system consists of a combination of the various relevant system (circuit) inspections.
  • When multiple DTCs are output, performing each diagnostic procedure in order of priority can lead to a more accurate diagnosis.

Inspection Details of Relevant Systems

DTC No.

Detection Item

Order of Priority

Inspection Pattern

1

2

3

4

5

Microcomputer Malfunction

Power Source Circuit Malfunction

Communication System Malfunction

Sensor and Actuator Circuit Malfunction

System Malfunction

P056014

System Voltage (BATT) Circuit Short to Ground or Open

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○

-

-

-

-

P060647

Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure

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-

-

-

-

-

P060687

Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message

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-

-

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-

-

P060694

Hybrid/EV Powertrain Control Module Processor Unexpected Operation

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-

-

-

-

-

P060A29

Hybrid/EV Powertrain Control Module Monitoring Processor Signal Invalid

○

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-

-

-

-

P060A44

Hybrid/EV Powertrain Control Module Monitoring Processor Data Memory Failure

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-

-

-

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-

P060A45

Hybrid/EV Powertrain Control Module Monitoring Processor Program Memory Failure

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-

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-

-

-

P060A47

Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure

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-

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-

-

-

P060A49

Hybrid/EV Powertrain Control Module Monitoring Processor Internal Electronic Failure

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-

-

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-

P060A87

Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message

○

-

-

-

-

-

P060A94

Internal Control Module Monitoring Processor Performance Unexpected Operation

○

-

-

-

-

-

P060B1C

Hybrid/EV Powertrain Control Module A/D Processing Voltage Out of Range

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-

-

-

-

-

P060B49

Hybrid/EV Powertrain Control Module A/D Processing Internal Electronic Failure

○

-

-

-

-

-

P060B71

Hybrid/EV Powertrain Control Module A/D Processing Actuator Stuck

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-

-

-

-

-

P062F44

Hybrid/EV Powertrain Control Module EEPROM Data Memory Failure

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-

-

-

P062F46

Hybrid/EV Powertrain Control Module EEPROM Calibration / Parameter Memory Failure

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-

-

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-

-

P06881F

ECM/PCM Power Relay Sense Circuit Intermittent

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○

-

-

-

-

P070562

Transmission Range Sensor "A" Circuit (PRNDL Input) Signal Compare Failure

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-

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○

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-

P0A0A13

High Voltage System Interlock Circuit Open

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-

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-

P0A0A92

High Voltage System Interlock Performance or Incorrect Operation

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P0A1B49

Drive Motor "A" Control Module Internal Electronic Failure

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-

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-

-

P0A1B94

Drive Motor "A" Control Module Unexpected Operation

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-

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-

-

-

P0A2A11

Drive Motor "A" Temperature Sensor Circuit Short to Ground

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-

○

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-

P0A2A15

Drive Motor "A" Temperature Sensor Circuit Short to Auxiliary Battery or Open

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-

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○

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-

P0A2A1C

Drive Motor "A" Temperature Sensor Voltage Out of Range

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-

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○

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-

P0A2A1F

Drive Motor "A" Temperature Sensor Circuit Intermittent

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-

P0A3611

Generator Temperature Sensor Circuit Short to Ground

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P0A3615

Generator Temperature Sensor Circuit Short to Auxiliary Battery or Open

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○

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-

P0A361C

Generator Temperature Sensor Voltage Out of Range

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-

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○

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-

P0A361F

Generator Temperature Sensor Circuit Intermittent

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○

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-

P0A8100

Hybrid/EV Battery Cooling Fan 1 Control Circuit High

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-

○

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-

P0A8111

Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground

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-

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○

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-

P0A8115

Hybrid/EV Battery Cooling Fan 1 Circuit Short to Auxiliary Battery or Open

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-

○

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P0A814B

Hybrid/EV Battery Cooling Fan 1 Over Temperature

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P0A8196

Hybrid/EV Battery Cooling Fan 1 Component Internal Failure

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○

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P0A8198

Hybrid/EV Battery Cooling Fan 1 Component or System Over Temperature

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-

-

○

-

-

P0A9300

Inverter "A" Cooling System Performance

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-

-

-

○

B

P0A9563

High Voltage Fuse Accumulated Load History

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-

-

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○

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P0A9B11

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

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○

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P0A9B15

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

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-

○

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-

P0A9B1C

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

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-

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○

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-

P0A9B2A

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

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○

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P0AA000

Hybrid/EV Battery Positive Contactor Circuit Stuck Closed

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○

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P0AA073

Hybrid/EV Battery Positive and Negative Contactor Actuator Stuck Closed

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-

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○

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P0AA373

Hybrid/EV Battery Negative Contactor Actuator Stuck Closed

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-

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○

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P0AA649

Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure

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○

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P0AA749

Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure

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○

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P0AAC11

Hybrid/EV Battery Air Temperature Sensor "A" Circuit Short to Ground

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○

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P0AAC15

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

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○

-

-

P0ABF00

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

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○

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P0ABF11

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

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○

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P0ABF15

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

-

-

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○

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-

P0ABF28

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

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○

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P0ABF2A

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

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○

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-

P0AC511

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

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○

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-

P0AC515

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

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○

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P0AC51C

Hybrid/EV Battery Temperature Sensor "B" Voltage Out of Range

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○

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P0AC52A

Hybrid/EV Battery Temperature Sensor "B" Signal Stuck In Range

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○

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P0ACA11

Hybrid/EV Battery Temperature Sensor "C" Circuit Short to Ground

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○

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P0ACA15

Hybrid/EV Battery Temperature Sensor "C" Circuit Short to Auxiliary Battery or Open

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○

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P0ACA1C

Hybrid/EV Battery Temperature Sensor "C" Voltage Out of Range

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○

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P0ACA2A

Hybrid/EV Battery Temperature Sensor "C" Signal Stuck In Range

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○

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P0AD911

Hybrid/EV Battery Positive Contactor Circuit Short to Ground

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○

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P0AD915

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

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○

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-

P0ADD11

Hybrid/EV Battery Negative Contactor Circuit Short to Ground

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○

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P0ADD15

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

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-

-

○

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-

P0AE173

Hybrid/EV Battery Precharge Contactor Actuator Stuck Closed

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-

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○

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P0AE411

Hybrid/EV Battery Precharge Contactor Circuit Short to Ground

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○

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P0AE415

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

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-

-

○

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-

P0AFC00

Hybrid/EV Battery Sensor Module

○

-

-

-

-

-

P0AFC16

Hybrid/EV Battery Sensor Module Circuit Voltage Below Threshold

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○

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P0AFC49

Hybrid/EV Battery Sensor Module Internal Electronic Failure

○

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-

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P0AFC62

Hybrid/EV Battery Sensor Module Signal Compare Failure

○

-

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-

-

-

P0AFC96

Hybrid/EV Battery Sensor Module Component Internal Failure

○

-

-

-

-

-

P0B231C

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

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-

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○

-

-

P0B3B14

Hybrid/EV Battery Voltage Sensor "A" Circuit Short to Ground or Open

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-

○

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-

P0B4014

Hybrid/EV Battery Voltage Sensor "B" Circuit Short to Ground or Open

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-

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○

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-

P0B4514

Hybrid/EV Battery Voltage Sensor "C" Circuit Short to Ground or Open

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○

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-

P0B4A14

Hybrid/EV Battery Voltage Sensor "D" Circuit Short to Ground or Open

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-

-

○

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-

P0B4F14

Hybrid/EV Battery Voltage Sensor "E" Circuit Short to Ground or Open

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○

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-

P0B5414

Hybrid/EV Battery Voltage Sensor "F" Circuit Short to Ground or Open

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-

-

○

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-

P0B5914

Hybrid/EV Battery Voltage Sensor "G" Circuit Short to Ground or Open

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○

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-

P0B5E14

Hybrid/EV Battery Voltage Sensor "H" Circuit Short to Ground or Open

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-

○

-

-

P0B6314

Hybrid/EV Battery Voltage Sensor "I" Circuit Short to Ground or Open

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-

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○

-

-

P0B6814

Hybrid/EV Battery Voltage Sensor "J" Circuit Short to Ground or Open

-

-

-

○

-

-

P0C3000

Hybrid/EV Battery State of Charge High

-

-

-

-

○

-

P0C7396

Motor Electronics Coolant Pump "A" Component Internal Failure

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-

-

○

-

-

P0C7600

Hybrid/EV Battery System Discharge Time Too Long

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-

-

○

-

P0D2D1C

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

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-

-

-

○

-

P0E311C

Boosting Converter Voltage Sensor "A" Voltage Out of Range

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-

-

-

○

-

P160600

Collision detected or Collision Sensor Connection (Open)

-

-

-

-

-

-

P160604

Collision detected or Collision Sensor Connection (Open) System Internal Failure

-

-

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-

-

-

P1A8000

Hybrid/EV Battery Stack 1 Delta SOC High

-

-

-

-

○

-

P1AC000

Hybrid/EV Battery Cell Low Voltage

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-

-

-

○

-

P1AD01B

Hybrid/EV Battery Block Circuit Resistance Above Threshold

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-

-

-

○

-

P1C2D62

Hybrid/EV Battery "A" Voltage Sensor/Boosting Converter Voltage Sensor "A" Signal Compare Failure

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-

-

-

○

-

P1C6A9F

Motor Shutdown Stuck Off

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-

-

-

○

-

P1C6C9F

Generator Shutdown Stuck Off

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-

-

-

○

-

P1C7779

Engine Failed to Start Mechanical Linkage Failure

-

-

-

○

-

-

P1C7C49

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

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-

-

-

○

-

P1C7D49

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

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-

-

-

○

-

P1C7E49

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

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-

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○

-

P1C7F49

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

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-

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○

-

P1C8149

High Voltage Power Resource Circuit Consumption Circuit Short

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-

-

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○

-

P1C8249

High Voltage Power Resource Circuit Over Loading

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○

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P1C8349

High Voltage Power Resource Circuit Voltage Sensor after Boosting Malfunction

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○

-

P1C8449

High Voltage Power Resource Circuit Short during Ready ON

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○

-

P1C8549

High Voltage Power Resource Internal Electronic Failure

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-

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○

-

P1C8679

Transmission (Input) Mechanical Linkage Failure

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-

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○

-

P1C8779

Generator Mechanical Linkage Failure

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-

○

-

P1C8879

Planetary Gear Mechanical Linkage Failure

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○

-

P1C9E9F

Hybrid/EV System Reset Stuck Off

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○

-

P1C9F11

Hybrid/EV Battery Current Sensor for Driving Control Circuit Short to Ground

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○

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-

P1C9F15

Hybrid/EV Battery Current Sensor for Driving Control Circuit Short to Auxiliary Battery or Open

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○

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-

P1C9F1C

Hybrid/EV Battery Current Sensor for Driving Control Voltage Out of Range

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○

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-

P1CBB12

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

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○

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-

P1CBB14

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

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-

○

-

  

P1CBE1E

Hybrid/EV Battery Block 1 Voltage Difference Out of Range

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○

-

P1CBF1E

Hybrid/EV Battery Block 2 Voltage Difference Out of Range

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○

-

P1CC01E

Hybrid/EV Battery Block 3 Voltage Difference Out of Range

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○

-

P1CC11E

Hybrid/EV Battery Block 4 Voltage Difference Out of Range

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○

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P1CC21E

Hybrid/EV Battery Block 5 Voltage Difference Out of Range

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○

-

P1CC31E

Hybrid/EV Battery Block 6 Voltage Difference Out of Range

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○

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P1CC41E

Hybrid/EV Battery Block 7 Voltage Difference Out of Range

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○

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P1CC51E

Hybrid/EV Battery Block 8 Voltage Difference Out of Range

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-

○

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P1CC61E

Hybrid/EV Battery Block 9 Voltage Difference Out of Range

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○

-

P1CE213

PCU Interlock Circuit Open

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-

○

-

P1CE292

PCU Interlock Performance or Incorrect Operation

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○

-

P1CE31C

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Voltage Out of Range

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-

P1CE349

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Internal Electronic Failure

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P1CE371

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Actuator Stuck

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-

-

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-

P1CFA12

IGB Signal Circuit Short to Auxiliary Battery

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-

-

-

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-

P212012

Throttle/Pedal Position Sensor/Switch "D" Circuit Short to Auxiliary Battery

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○

-

-

P212014

Throttle/Pedal Position Sensor/Switch "D" Circuit Short to Ground or Open

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○

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-

P21201C

Throttle/Pedal Position Sensor/Switch "D" Voltage Out of Range

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○

-

-

P21201F

Throttle/Pedal Position Sensor/Switch "D" Circuit Intermittent

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○

-

-

P212512

Throttle/Pedal Position Sensor/Switch "E" Circuit Short to Auxiliary Battery

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-

○

-

-

P212514

Throttle/Pedal Position Sensor/Switch "E" Circuit Short to Ground or Open

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-

○

-

-

P21251C

Throttle/Pedal Position Sensor/Switch "E" Voltage Out of Range

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-

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○

-

-

P21251F

Throttle/Pedal Position Sensor/Switch "E" Circuit Intermittent

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○

-

-

P213800

Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation

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○

-

-

P21382B

Throttle/Pedal Position Sensor/Switch "D"/"E" Signal Cross Coupled

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○

-

-

P253012

IG2 Signal Circuit Short to Auxiliary Battery

○

-

-

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-

P274A11

Transmission Fluid Temperature Sensor "C" Circuit Short to Ground

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-

○

-

-

P274A15

Transmission Fluid Temperature Sensor "C" Circuit Short to Auxiliary Battery or Open

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-

-

○

-

-

P274A1C

Transmission Fluid Temperature Sensor "C" Voltage Out of Range

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-

-

○

-

-

P274A1F

Transmission Fluid Temperature Sensor "C" Circuit Intermittent

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-

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○

-

-

P300000

Hybrid/EV Battery Discharge Control Malfunction

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-

-

○

-

P300016

Hybrid/EV Battery Control System Circuit Voltage Below Threshold

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-

-

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○

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P30004B

Hybrid/EV Battery Control System Over Temperature

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-

-

-

○

-

P300449

High Voltage Power Resource Circuit Short during Pre-Charge

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-

-

-

○

-

P301100

Hybrid/EV Battery Block 1 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30111E

Hybrid/EV Battery Block 1 Circuit Resistance Out of Range

-

-

-

-

○

-

P301200

Hybrid/EV Battery Block 2 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30121E

Hybrid/EV Battery Block 2 Circuit Resistance Out of Range

-

-

-

-

○

-

P301300

Hybrid/EV Battery Block 3 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30131E

Hybrid/EV Battery Block 3 Circuit Resistance Out of Range

-

-

-

-

○

-

P301400

Hybrid/EV Battery Block 4 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30141E

Hybrid/EV Battery Block 4 Circuit Resistance Out of Range

-

-

-

-

○

-

P301500

Hybrid/EV Battery Block 5 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30151E

Hybrid/EV Battery Block 5 Circuit Resistance Out of Range

-

-

-

-

○

-

P301600

Hybrid/EV Battery Block 6 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30161E

Hybrid/EV Battery Block 6 Circuit Resistance Out of Range

-

-

-

-

○

-

P301700

Hybrid/EV Battery Block 7 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30171E

Hybrid/EV Battery Block 7 Circuit Resistance Out of Range

-

-

-

-

○

-

P301800

Hybrid/EV Battery Block 8 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30181E

Hybrid/EV Battery Block 8 Circuit Resistance Out of Range

-

-

-

-

○

-

P301900

Hybrid/EV Battery Block 9 Circuit Resistance Out of Range (Extreme)

-

-

-

-

○

-

P30191E

Hybrid/EV Battery Block 9 Circuit Resistance Out of Range

-

-

-

-

○

-

P306562

Hybrid/EV Battery Temperature Sensor "Group 1" Signal Compare Failure

-

-

-

○

-

-

P308A12

Hybrid/EV Battery Voltage Sensor All Circuit Short to Auxiliary Battery

-

-

-

○

-

-

P308A13

Hybrid/EV Battery Voltage Sensor All Circuit Open

-

-

-

○

-

-

P310711

Lost Communication with Airbag System Control Module Circuit Short to Ground

-

-

○

-

-

-

P310715

Lost Communication with Airbag System Control Module Circuit Short to Auxiliary Battery or Open

-

-

○

-

-

-

P310764

Lost Communication with Airbag System Control Module Signal Plausibility Failure

-

-

○

-

-

-

P312387

Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message

-

-

○

-

-

-

P314779

Transmission (Shaft) Mechanical Linkage Failure

-

-

-

-

○

-

P314A31

Motor Electronics Coolant Pump "A" No Signal

-

-

-

○

-

-

P321E9F

Motor/Generator Shutdown Signal Stuck Off

-

-

-

-

○

-

P33B99F

Motor/Generator Shutdown Signal (Hybrid/EV Side) Stuck Off

-

-

-

-

○

-

P33BF9F

Motor/Generator Shutdown Signal (MG Side) Stuck Off

-

-

-

-

○

-

U010087

Lost Communication with ECM/PCM "A" Missing Message

-

-

○

-

-

-

U010487

Lost Communication with Cruise Control Module Missing Message

-

-

○

-

-

-

U011087

Lost Communication with Drive Motor Control Module "A" Missing Message

-

-

○

-

-

-

U012287

Lost Communication with Vehicle Dynamics Control Module Missing Message

-

-

○

-

-

-

U012987

Lost Communication with Brake System Control Module Missing Message

-

-

○

-

-

-

U014087

Lost Communication with Body Control Module Missing Message

-

-

○

-

-

-

U015187

Lost Communication with Restraints Control Module Missing Message

-

-

○

-

-

-

U016487

Lost Communication with HVAC Control Module Missing Message

-

-

○

-

-

-

U029387

Lost Communication with Hybrid/EV Powertrain Control Module Missing Message

-

-

○

-

-

-

U029A87

Lost Communication with Hybrid/EV Battery Sensor Module Missing Message

-

-

○

-

-

-

U042481

HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received

-

-

○

-

-

-

U110787

Lost Communication with Power Management Module Missing Message

-

-

○

-

-

-

U117087

Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message

-

-

○

-

-

-

HINT:

The "Example of Multiple DTCs being Output" below is only one example of a malfunction condition. Therefore, a determination should not be made based on this alone.

Example of Multiple DTCs being Output:

  1. The power supply of the microcomputer decreases while the vehicle is being driven.
    1. DTCs are detected and the vehicle behavior is as follows.

    Detected DTCs

    • P060B1C (Hybrid/EV Powertrain Control Module A/D Processing Voltage Out of Range): Microcomputer malfunction*
    • P06881F (ECM/PCM Power Relay Sense Circuit Intermittent): Power source circuit malfunction*
    • P0AA749 (Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure): Sensor and actuator circuit malfunction*
    • P0B231C (Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range): Sensor and actuator circuit malfunction*
    • P1C9E9F (Hybrid/EV System Reset Stuck Off): System malfunction*
      • *: Check the priority level in the "DTC Order of Priority" chart above.

    Vehicle Behavior

    • System stopped
  2. The inspection order of priority is: Microcomputer circuit → power source circuit → communication circuit → sensor and actuator circuit → system circuit. Therefore, check the repair procedure for P060B1C.
  3. Follow the repair procedures and replace the hybrid vehicle control ECU. Finish the repair.

It is possible to check only the specified malfunctioning parts without having to check irrelevant parts.