Toyota Yaris: Sfi System / Basic Inspection

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / Basic Inspection

CAUTION / NOTICE / HINT

When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following procedure, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when troubleshooting the engine.

PROCEDURE

1.

CHECK AUXILIARY BATTERY VOLTAGE

NOTICE:

Carry out this check with the engine stopped and the ignition switch off.

Result

Proceed to

11 V or higher

OK

Below 11 V

NG

NG

CHARGE OR REPLACE AUXILIARY BATTERY

OK

2.

CHECK WHETHER ENGINE CRANKS

NG

PROCEED TO PROBLEM SYMPTOMS TABLE

OK

3.

CHECK WHETHER ENGINE STARTS

NG

GO TO STEP 6

OK

4.

CHECK AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

(a) Visually check that the air cleaner filter element sub-assembly is not excessively contaminated with dirt or oil.

NG

REPLACE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

OK

5.

CHECK IDLE SPEED

(a) Check the engine idle speed.

Click here

NG

PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT

OK

6.

CHECK FUEL PRESSURE

(a) Check the fuel pressure.

Click here

NG

PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT

OK

7.

CHECK FOR SPARK

(a) Perform a spark test.

Click here

OK

PROCEED TO PROBLEM SYMPTOMS TABLE

NG

PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT

    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...

    Registration

    REGISTRATION CAUTION / NOTICE / HINT PROCEDURE 1. VIN or FRAME NUMBER NOTICE: The Vehicle Identification Number (VIN) or frame number must be written into a replacement ECM...

    Other information:

    Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Components


    C..

    Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Lack of Power


    DESCRIPTION Problem Symptom Suspected Area Trouble Area Engine speed fluctuation due to abnormal combustion Idle speed too low or high Strong engine vibration due to above symptoms Ignition malfunction Deviation in air fuel ratio (Excessive or insufficient intake air volume or fuel supply) Insufficient compression Changes in load from another system Ignition system Spark plug Ignition coil assembly Fuel system Direct fuel injector assembly Port fuel injector assembly Fuel pump assembly (for high pressure side) Fuel pump (for low pressure side) Fuel pump control circuit Fuel suction plate sub-assembly Fuel main valve assembly Fuel line Purge VSV system Fuel quality (existence of foreign matter, degradation) Intake and exhaust systems Mass air flow meter sub-assembly Intake system (Air leaks or deposit accumulation) Throttle body with motor assembly Air fuel ratio sensor (sensor 1) Air fuel ratio sensor (sensor 2) Cam timing oil control solenoid assembly Variable Valve Timing system (VVT system) Other control systems ECM Wire harness or connector Knock control sensor Engine coolant temperature sensor Engine Water control valve Engine assembly High load from another system Air conditioning system Power steering system Electrical load signal system SYMPTOM AND CAUSE OF SYSTEM MALFUNCTION HINT: The following are descriptions of the characteristics of each system malfunction...

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