Toyota Yaris: Power Steering System / Power Steering Control Module Processor System Internal Failure (C05D604,...,C15D362)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Steering / Power Assist Systems / Power Steering System / Power Steering Control Module Processor System Internal Failure (C05D604,...,C15D362)

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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON again

-

C152A19

Power Steering Motor "A" Circuit Current Above Threshold

Motor "A" overcurrent

Power steering ECU assembly

EPS warning light: Comes on

Ignition switch ON again

-

C152B18

Power Steering Motor "B" Circuit Current Below Threshold

Motor "B" low current malfunction

Power steering ECU assembly

EPS warning light: Comes on

Ignition switch ON again

-

C152B19

Power Steering Motor "B" Circuit Current Above Threshold

Motor "B" overcurrent

Power steering ECU assembly

EPS warning light: Comes on

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON 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

Ignition switch ON again

-

CAUTION / NOTICE / HINT

NOTICE:

When the power steering ECU assembly has been replaced, perform Power Steering ECU Initial Setting (assist map writing).

Click here

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Chassis > EMPS > Clear DTCs
NEXT

2.

CHECK FOR DTC

(a) Check for DTCs.

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

A

REPLACE POWER STEERING ECU ASSEMBLY

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

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