Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HEUF
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2019]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): DIAGNOSTIC TROUBLE CODE CHART; 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]

DIAGNOSTIC TROUBLE CODE CHART

Power Steering System

DTC No.

Detection Item

DTC Detection Condition

Warning Indicate

Return-to-normal Condition

Note

Link

C1511

Torque Sensor1

Diagnosis Condition: IG ON

Malfunction Status: TRQ1 voltage is less than 0.66 V or more than 4.6 V

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1511; Torque Sensor1

C1512

Torque Sensor2

Diagnosis Condition: IG ON

Malfunction Status: TRQ2 voltage is less than 0.66 V or more than 4.6 V

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1512; Torque Sensor2

C1513

Torque Sensor Deviation Excessive

Deviation of torque sensor TRQ1 and TRQ2 exceeds specified values

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1513; Torque Sensor Deviation Excessive

C1514

Torque Sensor Power Supply Voltage

Diagnosis Condition: IG ON

Malfunction Status: TRQV voltage is less than 4.5 V or more than 5.5 V.

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1514; Torque Sensor Power Supply Voltage

C1515

Torque Sensor Zero Point Adjustment Undone

This DTC is stored when torque sensor zero point calibration has not been performed.

EPS warning light: Comes on

Zero point calibration is performed or the engine switch is turned on (IG) again

There is no malfunction if this DTC is not output again after performing zero point calibration.

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1515; Torque Sensor Zero Point Adjustment Undone

C1516

Torque Sensor Zero Point Adjustment Incomplete

Torque sensor zero point calibration is incomplete due to the steering wheel being touched during calibration.

EPS warning light: Comes on

Engine switch on (IG) again

There is no malfunction if this DTC is not output again after clearing the DTC and torque sensor calibration value, and performing zero point calibration.

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1516; Torque Sensor Zero Point Adjustment Incomplete

C1517

Torque Hold

Temporary control due to malfunction related to torque sensor continues for long time

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1517; Torque Hold

C1521

Short in Motor Circuit

Motor overcurrent

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1522

Power Supply Sensor

Motor current sensor malfunction

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1523

Current Deviation Excessive

Excessively large current deviation

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1528

Motor Rotation Angle Sensor

Motor rotation angle sensor malfunction

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1531

ECU Malfunction

ECU internal malfunction

(CPU malfunction)

EPS warning light: Comes on

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

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1532

ECU Malfunction

ECU internal malfunction

(Peripheral circuit malfunction)

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1533

Temperature Sensor Circuit is Low or High

ECU internal malfunction

(Substrate temperature sensor malfunction)

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1534

EEPROM

ECU internal malfunction

(EEPROM error)

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1541

Vehicle Speed Signal

Vehicle speed signals via CAN communication are cut off for 3 seconds or more.

EPS warning light: Comes on

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

-

2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1541; Vehicle Speed Signal

C1551

IG Power Supply Voltage

Open or short in IG power source circuit with engine switch on (IG)

EPS warning light: Comes on

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

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1551; IG Power Supply Voltage

C1552

PIG Power Supply Voltage

PIG power source circuit malfunction

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1552,C1554; PIG Power Supply Voltage

C1554

Power Supply Relay Failure

Power source relay circuit malfunction

EPS warning light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1552,C1554; PIG Power Supply Voltage

C1555

Motor Relay Welding Failure

Motor relay circuit malfunction

EPS Warning Light: Comes on

Engine switch on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1521-C1523,C1528,C1531-C1555; Short in Motor Circuit

C1567

Error in Matching of ECUs

An incompatible steering sensor is detected.

EPS warning light: Comes on

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

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1567; Error in Matching of ECUs

C1581

Assist Map Number Un-Writing

Assist map not written in power steering ECU with motor assembly

EPS warning light: Comes on

Assist Map Writing is performed or the engine switch is turned on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1581; Assist Map Number Un-Writing

C1582

Assist Map Number Mismatch

Assist map number mismatch

EPS warning light: Does not come on

Assist Map Writing is performed or the engine switch is turned on (IG) again

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1582; Assist Map Number Mismatch

U0100

Lost Communication with ECM / PCM "A"

Lost communication with ECM

EPS warning light: When an error occurs during steering assist, the warning light does not illuminate. For errors that occur before assist (at the time of the decision to start assist), the warning light illuminates.

After normal confirmation

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): U0100,U0129,U023A; Lost Communication with ECM / PCM "A"

U0129

Lost Communication with Brake System Control Module

Lost communication with skid control ECU (Brake actuator assembly)

EPS warning light: Comes on

After normal confirmation

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): U0100,U0129,U023A; Lost Communication with ECM / PCM "A"

U023A

Lost Communication with Front Camera Module

Lost communication with forward recognition camera

EPS warning light: Does not come on

After normal confirmation

-

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): U0100,U0129,U023A; Lost Communication with ECM / PCM "A"