Toyota Yaris: Stop And Start System / Registration

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Stop And Start / Stop And Start System / Registration

REGISTRATION

PROCEDURE

1. ECU EXCHANGE

NOTICE:

  • When replacing the engine stop and start ECU, make sure to download the number of starter operations (step 1). After replacing the engine stop and start ECU (step 2), write the number of starter operations to the new engine stop and start ECU (step 3).
  • After replacing the engine stop and start ECU, make sure to perform external backup boost converter (eco run vehicle converter assembly) existence learning (step 4).
  • Even if the number of starter operations could not be downloaded, after replacing the engine stop and start ECU with a new one, make sure to perform external backup boost converter (eco run vehicle converter assembly) existence learning (step 4).

(a) Download the engine stop and start ECU data. (Step 1)

(1) Enter the following menus: Powertrain / Stop and Start / Utility / ECU Exchange.

Powertrain > Stop and Start > Utility

Tester Display

ECU Exchange

(2) According to the display on the GTS, select "Step 1 Save" and then "Next" to download the ECU data from the engine stop and start ECU.

(b) Replace the engine stop and start ECU. (step 2)

(1) Replace the engine stop and start ECU.

Click here

(c) Write the engine stop and start ECU data to the new engine stop and start ECU. (Step 3)

(1) Enter the following menus: Powertrain / Stop and Start / Utility / ECU Exchange.

Powertrain > Stop and Start > Utility

Tester Display

ECU Exchange

(2) According to the display on the GTS, select "Step 3 Write" and then "Next" to write the ECU data to the new engine stop and start ECU.

(d) Perform external backup boost converter (eco run vehicle converter assembly) existence learning. (Step 4)

(1) According to the display on the GTS, select "Step 4 Learning" and then "Next" to perform external backup boost converter (eco run vehicle converter assembly) existence learning.

HINT:

If the external backup boost converter (eco run vehicle converter assembly) existence value of the old engine stop and start ECU differs from the current learned value or if data could not be downloaded from the old engine stop and start ECU, the learning result will be displayed.

2. CLEAR NUMBER OF STARTER OPERATIONS

NOTICE:

  • After the starter assembly is replaced, be sure to clear the number of starter operations stored in the engine stop and start ECU.
  • When the starter assembly is replaced, "ST NO. 1 relay" must be also replaced.

(a) Enter the following menus: Powertrain / Stop and Start / Utility / Starter Exchange.

Powertrain > Stop and Start > Utility

Tester Display

Starter Exchange

(b) Following the prompts on the GTS display, clear the number of starter operations.

3. RESET AIR CONDITIONING INFORMATION

NOTICE:

After replacing the engine stop and start ECU or air conditioning amplifier assembly, initialization of the air conditioning information in the engine stop and start ECU is necessary.

(a) Enter the following menus: Powertrain / Stop and Start / Utility / Reset A/C Information.

Powertrain > Stop and Start > Utility

Tester Display

Reset A/C Information

(b) Following the prompts on the GTS display, clear the A/C information.

4. LEARNING AIR CONDITIONING INFORMATION

HINT:

When initialization of the air conditioning information is complete, air conditioning information learning is automatically performed. If the learning cannot be performed properly, inspect the CAN communication system.

5. CLEAR THE INTEGRATED CURRENT VALUE

HINT:

After charging the auxiliary battery or replace auxiliary battery, perform the integrated current value initialization.

If the Data List item "Integrated Current" indicates 0 or more, initialization is not necessary.

(a) Enter the following menus: Powertrain / Stop and Start / Utility / Integrated Current Value Initialization.

Powertrain > Stop and Start > Utility

Tester Display

Integrated Current Value Initialization

6. SWITCH AUXILIARY BATTERY TYPE

(a) Check whether the auxiliary battery is specified or not specified.

(b) Connect the GTS to the DLC3.

(c) Turn the ignition switch to ON.

HINT:

Do not start the engine.

(d) Turn the GTS on.

(e) Enter the following menus: Powertrain / Stop and Start / Data List / Auxiliary Battery Type.

Powertrain > Stop and Start > Data List

Tester Display

Battery Type

HINT:

Check the auxiliary battery type (Specified/Other) stored by the engine stop and start ECU.

(f) If the auxiliary battery installed does not match the auxiliary battery stored by the ECM, switch to the auxiliary battery type for the installed auxiliary battery.

(1) Enter the following menus: Powertrain / Engine / Utility / Switch Auxiliary Battery Type.

Powertrain > Engine > Utility

Tester Display

Switch Battery Type

    Operation Check

    OPERATION CHECK STOP AND START SYSTEM OPERATION CHECK HINT: If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed...

    Problem Symptoms Table

    PROBLEM SYMPTOMS TABLE Stop and Start System Symptom Suspected Area Link Stop and start system does not operate Refer to "Stop and Start System does not Operate" Refer to "Stop and Start System does not Operate (Battery Condition)" Restarting after a short period of time from an idling stop Refer to "Restarting after a Short Period of Time from an Idling Stop" After engine stops due to stop and start system, engine does not restart Refer to "After Engine Stops due to Stop and Start System, Engine does not Restart" Failure to restart from IG-ON engine stall Refer to "Failure to Restart from IG-ON Engine Stall" Stop and start cancel indicator does not operate Combination meter assembly Indicator circuit (CAN communication system) Engine stop and start ECU Stop and start indicator does not operate Combination meter assembly Indicator circuit (CAN communication system) Engine stop and start ECU Stop and start control cannot be canceled ECAN terminal voltage Stop and start cancel switch circuit Multi-information display screen does not change after pressing steering pad switch assembly...

    Other information:

    Toyota Yaris XP210 (2020-2022) Owner's Manual: Troubleshooting


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    VEHICLE CONTROL HISTORY NOTICE: Make sure to record any output Vehicle Control History codes before clearing them and checking the Vehicle Control History again. CHECK VEHICLE CONTROL HISTORY (SEMICONDUCTOR POWER INTEGRATION ECU) (a) Read the Vehicle Control History (RoB) according to the display on the GTS...

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