POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure; 2020 - 2022 MY Corolla Corolla HV [01/2019

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000001H792
Model Year Start: 2020	Model: Corolla	Prod Date Range: [01/2019 - 09/2022]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for HV Model): C05D604,...,C15D362; Power Steering Control Module Processor System Internal Failure; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 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

C15D21C

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

DTC

C15D262

Power Steering Motor Position Sensor "B" Signal Compare Failure

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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor 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 with motor assembly	EPS warning light: Comes on	Power switch on (IG) again	-

CAUTION / NOTICE / HINT

NOTICE:

When the power steering ECU with motor assembly has been replaced, perform Power Steering ECU Initial Setting (torque sensor zero point calibration and assist map writing).

Click here

PROCEDURE

1.	CHECK FOR DTC

(a) Clear the DTCs.

Click here

Chassis > EMPS > Clear DTCs

(b) Check for DTCs.

Click here

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, C15D21C, C15D262, 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, C15D21C, C15D262, C15D31C or C15D362 are output.	B

REPLACE POWER STEERING ECU WITH MOTOR ASSEMBLY

GO TO DIAGNOSTIC TROUBLE CODE CHART