Toyota Yaris: 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 |
|
| 2. | CHECK WHETHER ENGINE CRANKS |
| NG |
 | PROCEED TO PROBLEM SYMPTOMS TABLE |
|
| 3. | CHECK WHETHER ENGINE STARTS |
| NG |
 | GO TO STEP 6 |
|
| 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 |
|
| 5. | CHECK IDLE SPEED |
(a) Check the engine idle speed.
Click here
| NG |
 | PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT |
|
| 6. | CHECK FUEL PRESSURE |
(a) Check the fuel pressure.
Click here
| NG |
 | PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT |
|
| 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 (2020-2026) Reapir and Service Manual: Precaution
PRECAUTION CAUTION: Failure to carry out service procedures in the correct sequence could cause SRS parts to unexpectedly deploy and possibly lead to serious injuries. Furthermore, if a mistake is made when servicing SRS parts, they may fail to operate when required...
Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (a) Check the wire harness. (1) Disconnect the automatic light control sensor. (2) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Switch Condition Specified Condition H78-1 (CLTB) - H78-2 (CLTE) Ignition switch on (IG) 11 to 14 V If the specified condition is not met, replace the vehicle wire harness...
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Front Seat Belt Pretensioners
The front seat belt pretensioners are designed to deploy in moderate or severe frontal, near frontal collisions.
In addition, the pretensioners operate when a side collision or a rollover accident is detected. The pretensioners operate differently depending on what types of air bags are equipped. For more details about the seat belt pretensioner operation, refer to the SRS Air Bag Deployment Criteria.
