Toyota Yaris: Operating Tips for Audio System / Radio Reception
AM characteristics
AM signals bend around such things as buildings or mountains and
bounce off the ionosphere.
Therefore, they can reach longer distances than FM signals.
Because of this, 2 stations may sometimes be picked up on the
same frequency at the same time.

- Ionosphere
- Station 1
- Station 2
FM characteristics
An FM broadcast range is usually about 25 - 30 miles (40 - 50 km)
from the source. Because of extra coding needed to break the
sound into 2 channels, stereo FM has even less range than monaural (non-stereo)
FM.

- FM Station
- 25 - 30 miles (40 - 50 km)
Signals from an FM transmitter are similar to beams of light
because they do not bend around corners, but they do reflect.
Unlike AM signals, FM signals cannot travel beyond the horizon.
Therefore, FM stations cannot be received at the great distances
possible with AM reception.

- Ionosphere
- FM wave
- AM wave
- 60 - 120 miles (100 - 200 km)
- Obstruction
Atmospheric conditions can also affect FM reception. High humidity
will cause poor reception. However, cloudy days may provide better
reception than clear days.
- Multipath noise
Since FM signals can be reflected by obstructions, it
is possible
to receive both the direct signal and the reflected signal at the
same time. This causes a slight delay in reception and may be
heard as a broken sound or a distortion. This problem may also
be encountered when in close proximity to the transmitter.

- Direct
- Reflected wave
- Flutter/Skip noise

Signals from an FM transmitter move in straight lines and
become weak in valleys
between tall buildings, mountains, and other obstacles.
When a vehicle passes
through such an area, the
reception conditions may
change suddenly, resulting in
annoying noise.
- Weak signal noise

In suburban areas, broadcast
signals become weak
because of distance from the
transmitter. Reception in
such fringe areas is characterized by sound breakup.
- Strong signal noise

This occurs very close to a
transmitter tower. The broad-
cast signals are extremely
strong, so the result is noise
and sound breakup at the
radio receiver.
- Station drift noise
When a vehicle reaches the area of 2 strong stations
broadcasting at similar frequencies, the original station may be temporarily
lost and the second station picked up. At this time there will be
some noise from this disturbance.

- Station 1 88.1 MHz
- Station 2 88.3 MHz
Do not spill any liquid on the audio system.
To prevent the battery from being discharged, do not leave the audio
system
on for a long period of time when the engine is not running...
MP3 stands for MPEG Audio Layer 3, which is standardized voice
compression established by the ISO* 1 working group (MPEG).
Use of MP3 allows for audio data to be compressed to approximately
a tenth of the source data size...
Other information:
DIAGNOSTIC TROUBLE CODE CHART SFI System DTC No. Detection Item MIL Note Link P001013 A Camshaft Position Actuator Bank 1 Circuit Open Comes on SAE: P0010
P001100 Camshaft Position "A" - Timing Over-Advanced or System Performance Bank 1 Comes on SAE: P0011
P001200 Camshaft Position "A" - Timing Over-Retarded Bank 1 Comes on SAE: P0012
P001313 Camshaft Position "B" - Actuator Bank 1 Circuit Open Comes on SAE: P0013
P001400 Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 Comes on SAE: P0014
P001500 Camshaft Position "B" - Timing Over-Retarded Bank 1 Comes on SAE: P0015
P001600 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A Comes on SAE: P0016
P001700 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B Comes on SAE: P0017
P003012 HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery Comes on SAE: P0032
P003013 HO2S Heater Control Bank 1 Sensor 1 Circuit Open Comes on SAE: P0031
P003312 Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Battery - SAE: P0035
P003314 Turbocharger / Supercharger Bypass Valve "A" Control Circuit Short to Ground or Open - SAE: P0034
P003612 HO2S Heater Control Circuit Bank 1 Sensor 2 Circuit Short to Battery Comes on SAE: P0038
P003613 A/F (O2) Heater Control Circuit Bank 1 Sensor 2 Circuit Open Comes on SAE: P0037
P006D62 Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 1 Signal Compare Failure - SAE: P006D
P007A11 Charge Air Cooler Temperature Sensor Bank 1 Circuit Short to Ground - SAE: P007C
P007A15 Charge Air Cooler Temperature Sensor Bank 1 Circuit Short to Battery or Open - SAE: P007D
P008700 Fuel Rail / System Pressure - Too Low Comes on SAE: P0087
P008800 Fuel Rail / System Pressure - Too High Comes on SAE: P0088
P008A00 Low Pressure Fuel System Pressure - Too Low - SAE: P008A
P008B00 Low Pressure Fuel System Pressure - Too High - SAE: P008B
P00CF62 Barometric Pressure - Turbocharger / Supercharger Boost Sensor "A" Signal Compare Failure Comes on SAE: P00CF
P010012 Mass or Volume Air Flow Sensor "A" Circuit Short to Battery Comes on SAE: P0103
P010014 Mass or Volume Air Flow Sensor "A" Circuit Short to Ground or Open Comes on SAE: P0102
P010511 Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground Comes on SAE: P0107
P010515 Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Battery or Open Comes on SAE: P0108
P011011 Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground Comes on SAE: P0112
P011015 Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open Comes on SAE: P0113
P011511 Engine Coolant Temperature Sensor 1 Circuit Short to Ground Comes on SAE: P0117
P011515 Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open Comes on SAE: P0118
P01152A Engine Coolant Temperature Sensor 1 Signal Stuck in Range Comes on SAE: P0116
P012011 Throttle / Pedal Position Sensor / Switch "A" Circuit Short to Ground Comes on SAE: P0122
P012015 Throttle / Pedal Position Sensor / Switch "A" Circuit Short to Battery or Open Comes on SAE: P0123
P01201C Throttle / Pedal Position Sensor / Switch "A" Circuit Voltage Out of Range Comes on SAE: P0121
P012A11 Turbocharger/Supercharger Inlet Pressure Sensor "A" Circuit Low Circuit Short to Ground - SAE: P012C
P012A15 Turbocharger/Supercharger Inlet Pressure Sensor "A" Circuit High Circuit Short to Battery or Open - SAE: P012D
P013616 A/F (O2) Sensor Circuit Bank 1 Sensor 2 Circuit Current (Voltage) Below Threshold Comes on SAE: P0136
P017100 System Too Lean Bank 1 Comes on SAE: P0171
P017200 System Too Rich Bank 1 Comes on SAE: P0172
P019011 Fuel Rail Pressure Sensor "A" Circuit Short to Ground Comes on SAE: P0192
P019015 Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open Comes on SAE: P0193
P019511 Engine Oil Temperature Sensor Circuit Short to Ground - SAE: P0197
P019515 Engine Oil Temperature Sensor Circuit Short to Battery or Open - SAE: P0198
P020113 Cylinder 1 Injector "A" Circuit Open Comes on SAE: P0201
P020213 Cylinder 2 Injector "A" Circuit Open Comes on SAE: P0202
P020313 Cylinder 3 Injector "A" Circuit Open Comes on SAE: P0203
P022011 Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Ground Comes on SAE: P0222
P022015 Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open Comes on SAE: P0223
P023400 Turbocharger/Supercharger "A" Overboost Condition - SAE: P0234
P023511 Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Ground Comes on SAE: P0237
P023515 Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Battery or Open Comes on SAE: P0238
P02351C Turbocharger/Supercharger Boost Sensor "A" Circuit Voltage Out of Range - SAE: P0236
P024313 Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Open Does not come on SAE: P0243
P030000 Random/Multiple Cylinder Misfire Detected Comes on/Blinks* *: The MIL flashes when a catalyst-damaging misfire is detected...
C..
Categories
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.
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