Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000257F6
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

DTC

C05D604

Power Steering Control Module Processor System Internal Failure

DTC

C05D646

Power Steering Control Module Processor Calibration / Parameter Memory Failure

DTC

C05D649

Power Steering Control Module Processor Internal Electronic Failure

DTC

C10001C

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

DTC

C152A18

Power Steering Motor "A" Circuit Current Below Threshold

DTC

C152A19

Power Steering Motor "A" Circuit Current Above Threshold

DTC

C152B18

Power Steering Motor "B" Circuit Current Below Threshold

DTC

C152B19

Power Steering Motor "B" Circuit Current Above Threshold

DTC

C153A00

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

DTC

C153A19

Power Steering Motor "A" Inverter Circuit Current Above Threshold

DTC

C153B00

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

DTC

C153B19

Power Steering Motor "B" Inverter Circuit Current Above Threshold

DTC

C154A7E

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

DTC

C154A7F

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

DTC

C154B7E

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

DTC

C154B7F

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

DTC

C157A11

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

DTC

C157A62

Power Steering Motor "A" Current Sensor Signal Compare Failure

DTC

C157B11

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

DTC

C157B62

Power Steering Motor "B" Current Sensor Signal Compare Failure

DTC

C15D11C

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

DTC

C15D162

Power Steering Motor Position Sensor "A" Signal Compare Failure

DTC

C15D187

Power Steering Motor Position Sensor "A" Missing Message

DTC

C15D21C

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

DTC

C15D262

Power Steering Motor Position Sensor "B" Signal Compare Failure

DTC

C15D287

Power Steering Motor Position Sensor "B" Missing Message

DTC

C15D31C

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

DTC

C15D362

Power Steering Motor Position Sensor "C" Signal Compare Failure

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Return-to-normal Condition

Note

C05D604

Power Steering Control Module Processor System Internal Failure

ECU internal malfunction

(CPU malfunction)

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C05D646

Power Steering Control Module Processor Calibration / Parameter Memory Failure

ECU internal malfunction

(EEPROM error)

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C05D649

Power Steering Control Module Processor Internal Electronic Failure

ECU internal malfunction

(Peripheral circuit malfunction)

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C10001C

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

ECU temperature sensor "A" range malfunction

Power steering ECU assembly

EPS warning light: Comes on

The ECU judges the system has returned to normal

-

C152A18

Power Steering Motor "A" Circuit Current Below Threshold

Motor "A" low current malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C152A19

Power Steering Motor "A" Circuit Current Above Threshold

Motor "A" overcurrent

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C152B18

Power Steering Motor "B" Circuit Current Below Threshold

Motor "B" low current malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C152B19

Power Steering Motor "B" Circuit Current Above Threshold

Motor "B" overcurrent

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C153A00

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

Inverter "A" pre-driver circuit malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C153A19

Power Steering Motor "A" Inverter Circuit Current Above Threshold

Inverter "A" short circuit malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C153B00

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

Inverter "B" pre-driver circuit malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C153B19

Power Steering Motor "B" Inverter Circuit Current Above Threshold

Inverter "B" short circuit malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C154A7E

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

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

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C154A7F

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

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

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C154B7E

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

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

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C154B7F

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

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

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C157A11

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

Motor "A" current sensor low voltage malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C157A62

Power Steering Motor "A" Current Sensor Signal Compare Failure

Motor "A" current sensor correlation malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C157B11

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

Motor "B" current sensor low voltage malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C157B62

Power Steering Motor "B" Current Sensor Signal Compare Failure

Motor "B" current sensor correlation malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C15D11C

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

Rotation angle sensor "A" range malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C15D162

Power Steering Motor Position Sensor "A" Signal Compare Failure

Rotation angle sensor "A" correlation malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C15D187

Power Steering Motor Position Sensor "A" Missing Message

Rotation angle sensor "A" correlation malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C15D21C

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

Rotation angle sensor "B" range malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C15D262

Power Steering Motor Position Sensor "B" Signal Compare Failure

Rotation angle sensor "B" correlation malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C15D287

Power Steering Motor Position Sensor "B" Missing Message

Rotation angle sensor "A" correlation malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C15D31C

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

Rotation angle sensor "C" range malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

C15D362

Power Steering Motor Position Sensor "C" Signal Compare Failure

Rotation angle sensor "C" correlation malfunction

Power steering ECU assembly

EPS warning light: Comes on

Power switch on (IG) again

-

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Click here 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): DTC CHECK / CLEAR

Chassis > EMPS > Clear DTCs

(b) Check for DTCs.

Click here 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): DTC CHECK / CLEAR

Chassis > EMPS > Trouble Codes

Result

Proceed to

DTCs other than C05D604, C05D646, C05D649, C10001C, C152A18, C152A19, C152B18, C152B19, C153A00, C153A19, C153B00, C153B19, C154A7E, C154A7F, C154B7E, C154B7F, C157A11, C157A62, C157B11, C157B62, C15D11C, C15D162, C15D187, C15D21C, C15D262, C15D287, C15D31C or C15D362 are not output.

A

DTCs other than C05D604, C05D646, C05D649, C10001C, C152A18, C152A19, C152B18, C152B19, C153A00, C153A19, C153B00, C153B19, C154A7E, C154A7F, C154B7E, C154B7F, C157A11, C157A62, C157B11, C157B62, C15D11C, C15D162, C15D187, C15D21C, C15D262, C15D287, C15D31C or C15D362 are output.

B

A

REPLACE POWER STEERING ECU ASSEMBLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; POWER ASSIST SYSTEMS: POWER STEERING ECU: REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER ASSIST SYSTEMS: POWER STEERING ECU: REMOVAL

B

GO TO DIAGNOSTIC TROUBLE CODE CHART