Toyota Yaris: G16e-gts (cooling) / Cooling System
On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
Do not remove the radiator cap sub-assembly while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
PROCEDURE
1. INSPECT FOR COOLANT LEAK
CAUTION:
Do not remove the radiator cap sub-assembly while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
(a) Remove the radiator cap sub-assembly.
| (b) Fill the radiator reserve tank assembly with engine coolant, and then install a radiator cap tester. |
|
(c) Warm up the engine.
(d) Pump the radiator cap tester to 123 kPa (1.3 kgf/cm2, 18 psi), and then check that the pressure does not drop.
- If the pressure drops, check the hoses, radiator assembly and engine water pump assembly for leaks.
- If there are no signs of external engine coolant leaks, check the heater core, cylinder block sub-assembly and cylinder head sub-assembly.
(e) Remove the radiator cap tester.
(f) Install the radiator cap sub-assembly.
2. INSPECT RADIATOR RESERVE TANK ENGINE COOLANT LEVEL
| (a) Check that the engine coolant level is between the MIN line and MAX line when the engine is cold. NOTICE: Do not substitute plain water for engine coolant. If the engine coolant level is low, check for leaks and add engine coolant to the MAX line. |
|
3. INSPECT ENGINE COOLANT QUALITY
CAUTION:
Do not remove the radiator cap sub-assembly while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
(a) Remove the radiator cap sub-assembly.
(b) Check that there are no excessive deposits of rust or scale around the radiator cap sub-assembly and engine coolant hole. Also, the engine coolant should be free of oil.
If excessively dirty, clean the engine coolant passage and replace the engine coolant.
(c) Install the radiator cap sub-assembly.
Cooling Fan Circuit
DESCRIPTION The ECM calculates an appropriate cooling fan speed based on the engine coolant temperature, air conditioning switch status, refrigerant pressure, engine speed and vehicle speed, and sends a signal to the cooling fan ECU (fan with motor assembly)...
Radiator
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Other information:
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Vehicle Control History
VEHICLE CONTROL HISTORY CHECK VEHICLE CONTROL HISTORY (a) Connect the GTS to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the GTS on. (d) Enter the following menus: Powertrain / Engine / Utility / Vehicle Control History (RoB). Powertrain > Engine > Utility Tester Display Vehicle Control History (RoB) Vehicle Control History (RoB) Item Code Tester Display Measurement Item Diagnostic Note X0600 Auxiliary Battery Voltage Low at Start History of low battery voltage at engine control system start - X0601 Auxiliary Battery Voltage Low at IG OFF History of low battery voltage when ignition switch off - X0602 Auxiliary Battery Discharge at IG OFF History of auxiliary battery becoming discharged when ignition switch off - X0603 Auxiliary Battery Discharge at Running History of auxiliary battery becoming discharged while vehicle being driven - X0606 Auxiliary Battery Voltage Low during Running History of low battery voltage while vehicle being driven - X0607 Auxiliary Battery Voltage High during Running History of high battery voltage while vehicle being driven - CLEAR VEHICLE CONTROL HISTORY (a) Connect the GTS to the DLC3...
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Precaution
PRECAUTION PRECAUTION FOR WASHER NOZZLE ADJUSTMENT (a) Do not clean or adjust the washer nozzle with a safety pin, etc. because: (1) The washer nozzle tip is made of resin and may be damaged. (2) Adjustment is not necessary for this spray type washer nozzle...
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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.
