Toyota Yaris: Sfi System / How To Proceed With Troubleshooting

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

*: Use the GTS.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS

NEXT

3.

CONNECT GTS TO DLC3*

HINT:

If the display indicates a communication malfunction, inspect the DLC3.

When any CAN communication system DTCs are output, perform troubleshooting for the CAN communication system first.

NEXT

4.

CHECK DTC AND FREEZE FRAME DATA*

(a) Check for DTCs.

Powertrain > Engine > Trouble Codes

(b) Check for Freeze Frame Data.

Click here

HINT:

Record or print DTCs and Freeze Frame Data if necessary.

NEXT

5.

CHECK VEHICLE CONTROL HISTORY AND VEHICLE CONTROL HISTORY FREEZE FRAME DATA*

(a) Check for Vehicle Control History and Vehicle Control History Freeze Frame Data.

Powertrain > Engine > Utility

Tester Display

Vehicle Control History (RoB)

HINT:

Print Vehicle Control History and Vehicle Control History Freeze Frame Data if necessary.

NEXT

6.

CLEAR DTC AND FREEZE FRAME DATA*

(a) Clear the DTCs and Freeze Frame Data.

Powertrain > Engine > Clear DTCs
NEXT

7.

CONDUCT VISUAL INSPECTION

NEXT

8.

SELECT CHECK MODE DIAGNOSIS*

(a) Change the ECM from normal mode to check mode.

Powertrain > Engine > Utility

Tester Display

Check Mode

NEXT

9.

CONFIRM PROBLEM SYMPTOMS

(a) Confirm the problem symptoms.

HINT:

If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.

Result

Proceed to

Malfunction does not occur

A

Malfunction occurs

B

B

GO TO STEP 11

A

10.

SIMULATE SYMPTOMS

HINT:

Refer to Symptom Simulation.

Click here

NEXT

11.

CHECK DTC*

(a) Check for DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are output

A

DTCs are not output

B

B

GO TO STEP 13

A

12.

REFER TO DTC CHART

HINT:

Refer to Diagnostic Trouble Code Chart.

Click here

NEXT

13.

CONDUCT BASIC INSPECTION

(a) Conduct basic inspection.

Click here

Result

Proceed to

Malfunctioning parts not confirmed

A

Malfunctioning parts confirmed

B

B

GO TO STEP 18

A

14.

REFER TO PROBLEM SYMPTOMS TABLE

HINT:

Refer to Problem Symptoms Table.

Click here

Result

Proceed to

Malfunctioning circuit confirmed

A

Malfunctioning parts confirmed

B

B

GO TO STEP 18

A

15.

CHECK ECM POWER SOURCE CIRCUIT

(a) Check the ECM power source circuit.

Click here

NEXT

16.

CONDUCT CIRCUIT INSPECTION

Result

Proceed to

Malfunction not confirmed

A

Malfunction confirmed

B

B

GO TO STEP 19

A

17.

CHECK FOR INTERMITTENT PROBLEMS

(a) Check for intermittent problems.

Click here

NEXT

18.

CONDUCT PARTS INSPECTION

NEXT

19.

IDENTIFY PROBLEM

NEXT

20.

ADJUST AND/OR REPAIR

NEXT

21.

CONDUCT CONFIRMATION TEST

NEXT

END

    System Diagram

    S..

    Check For Intermittent Problems

    CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode...

    Other information:

    Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: 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 - 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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 - 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