Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000012TD2
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 -           ]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1511-C1514,C1517,C1521-C1523,C1528,C1531-C1555; Torque Sensor1; 2018 - 2024 MY Camry [03/2017 -        ]

DTC

C1511

Torque Sensor1

DTC

C1512

Torque Sensor2

DTC

C1513

Torque Sensor Deviation Excessive

DTC

C1514

Torque Sensor Power Supply Voltage

DTC

C1517

Torque Hold

DTC

C1521

Short in Motor Circuit

DTC

C1522

Power Supply Sensor

DTC

C1523

Current Deviation Excessive

DTC

C1528

Motor Rotation Angle Sensor

DTC

C1531

ECU Malfunction

DTC

C1532

ECU Malfunction

DTC

C1533

Temperature Sensor Circuit is Low or High

DTC

C1534

EEPROM

DTC

C1555

Motor Relay Welding Failure

DESCRIPTION

While torque sensor system, motor system or ECU system malfunctions are detected, the fail-safe function suspends power assist. However, power assist continues with limited assistance amount if only C1533 or C1534 is output.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Return-to-normal Condition

Note

C1511

Torque Sensor1

Torque sensor malfunction

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1512

Torque Sensor2

Torque sensor malfunction

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1513

Torque Sensor Deviation Excessive

Torque sensor malfunction

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1514

Torque Sensor Power Supply Voltage

Torque sensor malfunction

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1517

Torque Hold

Torque sensor malfunction

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1521

Short in Motor Circuit

Motor overcurrent

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1522

Power Supply Sensor

Motor current sensor malfunction

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1523

Current Deviation Excessive

Excessively large current deviation

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1528

Motor Rotation Angle Sensor

Motor rotation angle sensor malfunction

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1531

ECU Malfunction

ECU internal malfunction (CPU malfunction)

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1532

ECU Malfunction

ECU internal malfunction (Peripheral circuit malfunction)

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1533

Temperature Sensor Circuit is Low or High

ECU internal malfunction (Substrate temperature sensor malfunction)

Rack and pinion power steering gear assembly

EPS warning light: Comes on

The ECU judges the system has returned to normal

-

C1534

EEPROM

ECU internal malfunction (EEPROM error)

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

C1555

Motor Relay Welding Failure

Motor relay circuit malfunction

Rack and pinion power steering gear assembly

EPS warning light: Comes on

Ignition switch is turned to ON again

-

CAUTION / NOTICE / HINT

NOTICE:

If the rack and pinion power steering gear assembly has been replaced, perform assist map writing and torque sensor zero point calibration.

Click here 2018 - 2024 MY Camry [03/2017 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: CALIBRATION

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Chassis > EMPS > Clear DTCs

(b) Check for DTCs.

Chassis > EMPS > Trouble Codes

Result

Proceed to

DTCs other than C1511, C1512, C1513, C1514, C1517, C1521, C1522, C1523, C1528, C1531, C1532, C1533, C1534 or C1555 are not output.

A

DTCs other than C1511, C1512, C1513, C1514, C1517, C1521, C1522, C1523, C1528, C1531, C1532, C1533, C1534 or C1555 are output.

B

DTCs are not output.

C

A

REPLACE RACK AND PINION POWER STEERING GEAR ASSEMBLY 2018 MY Camry [03/2017 - 06/2017]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2018 MY Camry [06/2017 - 08/2018]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2019 MY Camry [08/2018 - 09/2019]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2020 MY Camry [09/2019 - 03/2020]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2020 MY Camry [03/2020 - 10/2020]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL

B

GO TO DIAGNOSTIC TROUBLE CODE CHART 2018 MY Camry [03/2017 - 06/2017]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2018 - 2020 MY Camry [06/2017 - 10/2020]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2021 - 2024 MY Camry [10/2020 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

C

USE SIMULATION METHOD TO CHECK 2018 MY Camry [03/2017 - 06/2017]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2018 MY Camry [06/2017 - 08/2018]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2019 MY Camry [08/2018 - 09/2019]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry [09/2019 - 03/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry [03/2020 - 10/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2021 MY Camry [10/2020 - 08/2021]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2022 - 2024 MY Camry [08/2021 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING