Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000257F4
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): DIAGNOSTIC TROUBLE CODE CHART; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

DIAGNOSTIC TROUBLE CODE CHART

Power Steering System

DTC No.

Detection Item

DTC Detection Condition

Warning Indicate

Return-to-normal Condition

Note

Link

C05D604

Power Steering Control Module Processor System Internal Failure

ECU internal malfunction

(CPU malfunction)

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C05D646

Power Steering Control Module Processor Calibration / Parameter Memory Failure

ECU internal malfunction

(EEPROM error)

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C05D649

Power Steering Control Module Processor Internal Electronic Failure

ECU internal malfunction

(Peripheral circuit malfunction)

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C10001C

Control Module Internal Temperature Sensor "A" Circuit Voltage Out of Range

ECU temperature sensor "A" range malfunction

EPS warning light: Comes on

The ECU judges the system has returned to normal

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C123A17

Supply Voltage Circuit Circuit Voltage Above Threshold

IG voltage is 18.5 V or more

EPS warning light: Comes on

The ECU judges the system has returned to normal or the power switch is turned on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C123A17; Supply Voltage Circuit Circuit Voltage Above Threshold

C151162

Power Steering Torque Sensor "A" Signal Compare Failure

Diagnosis Condition: IG ON

Malfunction Status: The difference between 1A and 1B of the TRQ1 output signal is more than a certain value.

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C151162,C151187,C151262,C151287; Power Steering Torque Sensor "A" Signal Compare Failure

C151187

Power Steering Torque Sensor "A" Missing Message

Diagnosis Condition: IG ON

Malfunction Status: When the battery voltage is 9.0 V or more, the TRQ1 signal is not detected, breaks communication protocol, has a CRC error, or has an invalid rolling counter.

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C151162,C151187,C151262,C151287; Power Steering Torque Sensor "A" Signal Compare Failure

C151262

Power Steering Torque Sensor "B" Signal Compare Failure

Diagnosis Condition: IG ON

Malfunction Status: The difference between 2A and 2B of the TRQ2 output signal is more than a certain value.

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C151162,C151187,C151262,C151287; Power Steering Torque Sensor "A" Signal Compare Failure

C151287

Power Steering Torque Sensor "B" Missing Message

Diagnosis Condition: IG ON

Malfunction Status: When the battery voltage is 9.0 V or more, the TRQ2 signal is not detected, breaks communication protocol, has a CRC error, or has an invalid rolling counter.

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C151162,C151187,C151262,C151287; Power Steering Torque Sensor "A" Signal Compare Failure

C151A17

Power Steering Torque Sensor "A" Supply Voltage Circuit Voltage Above Threshold

TRQV1 voltage is 5.6 V or more

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C151A17; Power Steering Torque Sensor "A" Supply Voltage Circuit Voltage Above Threshold

C151B17

Power Steering Torque Sensor "B" Supply Voltage Circuit Voltage Above Threshold

TRQV2 voltage is 5.6 V or more

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C151B17; Power Steering Torque Sensor "B" Supply Voltage Circuit Voltage Above Threshold

C152A18

Power Steering Motor "A" Circuit Current Below Threshold

Motor "A" low current malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C152A19

Power Steering Motor "A" Circuit Current Above Threshold

Motor "A" overcurrent

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C152B18

Power Steering Motor "B" Circuit Current Below Threshold

Motor "B" low current malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C152B19

Power Steering Motor "B" Circuit Current Above Threshold

Motor "B" overcurrent

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C153A00

Malfunction of Power Steering Motor "A" Inverter Pre-Driver

Inverter "A" pre-driver circuit malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C153A19

Power Steering Motor "A" Inverter Circuit Current Above Threshold

Inverter "A" short circuit malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C153B00

Malfunction of Power Steering Motor "B" Inverter Pre-Driver

Inverter "B" pre-driver circuit malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C153B19

Power Steering Motor "B" Inverter Circuit Current Above Threshold

Inverter "B" short circuit malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C154A7E

Power Supply & Contrary Connection Protection Relay "A" Actuator Stuck On

Contrary connection protection relay "A" short circuit malfunction (initial check)

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C154A7F

Power Supply & Contrary Connection Protection Relay "A" Actuator Stuck Off

Contrary connection protection relay "A" open circuit malfunction (initial check)

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C154B7E

Power Supply & Contrary Connection Protection Relay "B" Actuator Stuck On

Contrary connection protection relay "B" short circuit malfunction (initial check)

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C154B7F

Power Supply & Contrary Connection Protection Relay "B" Actuator Stuck Off

Contrary connection protection relay "B" open circuit malfunction (initial check)

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C155A16

Power Steering Motor "A" Supply Voltage Circuit Voltage Below Threshold

Motor "1" PIG voltage is 3.6 V or less

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C155A16,C155A17,C155B16,C155B17; Power Steering Motor "A" Supply Voltage Circuit Voltage Below Threshold

C155A17

Power Steering Motor "A" Supply Voltage Circuit Voltage Above Threshold

Diagnosis Condition: IG ON

Malfunction Status: Motor "1" PIG voltage is 19.6 V or more

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C155A16,C155A17,C155B16,C155B17; Power Steering Motor "A" Supply Voltage Circuit Voltage Below Threshold

C155B16

Power Steering Motor "B" Supply Voltage Circuit Voltage Below Threshold

Motor "2" PIG voltage is 3.6 V or less

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C155A16,C155A17,C155B16,C155B17; Power Steering Motor "A" Supply Voltage Circuit Voltage Below Threshold

C155B17

Power Steering Motor "B" Supply Voltage Circuit Voltage Above Threshold

Diagnosis Condition: IG ON

Malfunction Status: Motor "2" PIG voltage is 19.6 V or more

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C155A16,C155A17,C155B16,C155B17; Power Steering Motor "A" Supply Voltage Circuit Voltage Below Threshold

C157A11

Power Steering Motor "A" Current Sensor Circuit Short to Ground

Motor "A" current sensor low voltage malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C157A62

Power Steering Motor "A" Current Sensor Signal Compare Failure

Motor "A" current sensor correlation malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C157B11

Power Steering Motor "B" Current Sensor Circuit Short to Ground

Motor "B" current sensor low voltage malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C157B62

Power Steering Motor "B" Current Sensor Signal Compare Failure

Motor "B" current sensor correlation malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C15D11C

Power Steering Motor Position Sensor "A" Circuit Voltage Out of Range

Rotation angle sensor "A" range malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C15D162

Power Steering Motor Position Sensor "A" Signal Compare Failure

Rotation angle sensor "A" correlation malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C15D187

Power Steering Motor Position Sensor "A" Missing Message

Rotation angle sensor "A" correlation malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C15D21C

Power Steering Motor Position Sensor "B" Circuit Voltage Out of Range

Rotation angle sensor "B" range malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C15D262

Power Steering Motor Position Sensor "B" Signal Compare Failure

Rotation angle sensor "B" correlation malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C15D287

Power Steering Motor Position Sensor "B" Missing Message

Rotation angle sensor "A" correlation malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C15D31C

Power Steering Motor Position Sensor "C" Circuit Voltage Out of Range

Rotation angle sensor "C" range malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

C15D362

Power Steering Motor Position Sensor "C" Signal Compare Failure

Rotation angle sensor "C" correlation malfunction

EPS warning light: Comes on

Power switch on (IG) again

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

Lost communication with steering sensor

EPS warning light: Does not come on

After normal confirmation

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): U012687,U012987,U023A87,U029387; Lost Communication with Steering Angle Sensor Module Missing Message

U012987

Lost Communication with Brake System Control Module Missing Message

Lost communication with skid control ECU (brake actuator assembly)

EPS warning light: Does not come on

After normal confirmation

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): U012687,U012987,U023A87,U029387; Lost Communication with Steering Angle Sensor Module Missing Message

U023A87

Lost Communication with Image Processing Module "A" Missing Message

Lost communication with forward recognition camera

EPS warning light: Does not come on

After normal confirmation

w/ Forward Recognition Camera

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): U012687,U012987,U023A87,U029387; Lost Communication with Steering Angle Sensor Module Missing Message

U029387

Lost Communication with Hybrid/EV Powertrain Control Module Missing Message

Lost communication with hybrid vehicle control ECU

EPS warning light: Does not come on

After normal confirmation

-

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): U012687,U012987,U023A87,U029387; Lost Communication with Steering Angle Sensor Module Missing Message