Toyota Yaris: Air Conditioning System / No Warm Air Comes Out
DESCRIPTION
If cool air blows from the registers regardless of the temperature setting of the air conditioning system, the following factors may be the cause.
| Symptom | Factor |
|---|---|
|
|
PROCEDURE
| 1. | CHECK FOR DTC |
(a) Check for DTCs.
Powertrain > Engine > Trouble CodesOK:
SFI system DTCs are not output.
| NG |
 | GO TO SFI SYSTEM |
|
| 2. | READ VALUE USING GTS (COOLANT TEMPERATURE) |
(a) Read the Data List according to the display on the GTS.
Powertrain > Engine > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Coolant Temperature | Engine coolant temperature | Min.: -40°C (-40°F), Max.: 140°C (284°F) | 75 to 100°C (167 to 212°F): After warming up | This is the engine coolant temperature. HINT:
|
| Tester Display |
|---|
| Coolant Temperature |
OK:
After warming up the engine, the temperature value displayed is within the range specified in the normal condition column.
| NG |
 | GO TO COOLING SYSTEM |
|
| 3. | PERFORM ACTIVE TEST USING GTS (FRONT LEFT AIR MIX DAMPER CONTROL SERVO MOTOR, FRONT RIGHT AIR MIX DAMPER CONTROL SERVO MOTOR) |
(a) Perform the Active Test according to the display on the GTS.
Body Electrical > Air Conditioner > Active Test| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Front Left Air Mix Damper Control Servo Motor | No. 1 air conditioning radiator damper servo sub-assembly pulse | Min.: 128 Max.: 384 | - |
| Front Right Air Mix Damper Control Servo Motor | No. 1 air conditioning radiator damper servo sub-assembly pulse | Min.: 128 Max.: 384 | - |
| Tester Display |
|---|
| Front Left Air Mix Damper Control Servo Motor |
| Tester Display |
|---|
| Front Right Air Mix Damper Control Servo Motor |
OK:
Each damper servo motor operates.
| OK |
 | REPLACE HEATER RADIATOR UNIT SUB-ASSEMBLY |
| NG |
 | GO TO DTC TROUBLESHOOTING PROCEDURE FOR MALFUNCTIONING DAMPER SERVO MOTOR |
Air Vent Temperature does not Change and Right Vent is Different from Left and Vice Versa (Same Left/Right Temperature Setting)
DESCRIPTION If the temperature of the air that blows from the left and right front registers differs, even though the same temperature is set for both sides, the following factors may be the cause...
Other information:
Toyota Yaris XP210 (2020-2026) Owner's Manual: Rear Window Wiper and Washer (If equipped)
Turn the wiper on by turning the rear wiper/washer switch. Rear Window Washer To spray washer fluid, turn the rear wiper/washer switch to either of the position. After the switch is removed, the washer will stop. If the washer does not work, inspect the fluid level...
Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Terminals Of Ecu
TERMINALS OF ECU CHECK STEREO COMPONENT EQUALIZER ASSEMBLY Terminal No. (Symbol) Terminal Description Condition Specified Condition O131-15(+B) - O131-30(GND) Power source Always 11 to 14 V O131-29(IGP) - O131-30(GND) Power source (IG) Ignition switch ON 11 to 14 V O131-14(ACC) - O131-30(GND) Power source (ACC) Ignition switch ACC 11 to 14 V O131-30(GND) - Body ground Ground Always Below 1 Ω O132-1(MC1+) - O131-30(GND) Active noise control microphone input signal Active noise control microphone LH tapped with finger Pulse generation O132-5(MC1-) - O131-30(GND) Active noise control microphone input signal Always Below 1 Ω O132-2(MC2+) - O131-30(GND) Active noise control microphone input signal Active noise control microphone RH tapped with finger Pulse generation O132-6(MC2-) - O131-30(GND) Active noise control microphone input signal Always Below 1 Ω O131-3(NEI) - O131-30(GND) Engine pulse signal Idling with warm engine Pulse generation (See waveform 1) O131-24(FLI-) Active noise control microphone output signal - - O131-9(FLI+) Active noise control microphone output signal - - O131-23(FRI-) Active noise control microphone output signal - - O131-8(FRI+) Active noise control microphone output signal - - O131-5(RRI+) Active noise control microphone output signal - - O131-20(RRI-) Active noise control microphone output signal - - O131-6(RLI+) Active noise control microphone output signal - - O131-21(RLI-) Active noise control microphone output signal - - O131-7(ASG1) Shield ground - - O131-22(ASG2) Shield ground - - O131-12(FR+) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-27(FR-) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-13(FL+) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-28(FL-) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-10(RR+) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131+25(RR-) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-11(RL+) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-28(RL-) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-1(CANH) CAN communication signal - - O131-16(CANL) CAN communication signal - - (a) Waveform 1 HINT: The oscilloscope waveform shown in the illustration is an example for reference only...
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Fuel-Filler Lid and Cap
WARNING
When removing the fuel-filler cap, loosen the cap slightly and wait for any hissing to stop, then remove it
Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if ingested. Fuel spray is released when there is pressure in the fuel tank and the fuel-filler cap is removed too quickly.
