Toyota Yaris: Switch Housing / Inspection
INSPECTION
PROCEDURE
1. INSPECT STEERING WHEEL SWITCH HOUSING
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
| *a | Component without harness connected (Steering Wheel Switch Housing) | - | - |
Standard Resistance:
Light Switch Circuit| Tester Connection | Condition | Specified Condition |
|---|---|---|
| z6-3 (T) - z4-3 (T) | Always | Below 1 Ω |
| z6-12 (H) - z4-4 (H) | Always | Below 1 Ω |
| z6-7 (A) - z4-5 (A) | Always | Below 1 Ω |
| z6-16 (HU) - z4-6 (HU) | Always | Below 1 Ω |
| z6-11 (HF) - z4-7 (HF) | Always | Below 1 Ω |
| z6-8 (TR) - z4-8 (TR) | Always | Below 1 Ω |
| z6-14 (TL) - z4-9 (TL) | Always | Below 1 Ω |
| z6-6 (CR) - z4-10 (CR) | Always | Below 1 Ω |
| z6-13 (BFG) - z4-11 (BFG) | Always | Below 1 Ω |
| z6-4 (B) - z4-12 (B) | Always | Below 1 Ω |
| z6-5 (EL) - z4-13 (EL) | Always | Below 1 Ω |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| z5-10 (W_OFF) - z4-24 (W_OFF) | Always | Below 1 Ω |
| z5-13 (+S) - z4-25 (+S) | Always | Below 1 Ω |
| z5-11 (+1) - z4-26 (+1) | Always | Below 1 Ω |
| z5-12 (+2) - z4-27 (+2) | Always | Below 1 Ω |
| z5-14 (MIST) - z4-28 (MIST) | Always | Below 1 Ω |
| z5-15 (WF) - z4-31 (WF) | Always | Below 1 Ω |
| z5-5 (E) - z4-33 (E) | Always | Below 1 Ω |
| z5-4 (VR) - z4-34 (VR) | Always | Below 1 Ω |
If the result is not as specified, replace the steering wheel switch housing.
Components
C..
Removal
REMOVAL CAUTION / NOTICE / HINT HINT: When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating...
Other information:
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Disassembly
DISASSEMBLY CAUTION / NOTICE / HINT PROCEDURE 1. REMOVE BACK DOOR TRIM BOARD (a) Remove the 11 clips and back door trim board. 2. REMOVE BACK DOOR TRIM COVER (a) Disengage the clips to remove the back door trim cover. 3...
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Terminals Of Ecu
TERMINALS OF ECU COMBINATION METER ASSEMBLY (a) Measure the voltage and resistance and check for pulses according to the value(s) in the table below. Terminal No. (Symbol) Terminal Description Condition Specified Condition H6-1 (B) - Body ground Auxiliary battery Ignition switch off 11 to 14 V H6-9 (CANH) CAN communication line - - H6-10 (MSCL) Local bus communication line - - H6-11 (TX1-) - Body ground Outside temperature sensor signal - - H6-13 (FR2) - H6-24 (FE&B) Fuel level signal Ignition switch ON, fuel level full → low (fuel level warning light on) Pulse generation (See waveform 3) H6-14 (FV) - Body ground Fuel sender gauge (Power source) Ignition switch ON Pulse generation (See waveform 1) H6-15 (MSTI) - Body ground Steering pad switch signal Ignition switch ON, up, down, right and left switches on steering pad switch not pushed 4...
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Break-In Period
No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.
Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.