Toyota Tundra. Manual — part 591

Fig. 10: Identifying Buzzer Sounds Detection Pattern
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Front corner detection range

FRONT CORNER DETECTION RANGE REFERENCE

Rear corner detection range

REAR CORNER DETECTION RANGE REFERENCE

Back detection range

BACK DETECTION RANGE REFERENCE

Detection

Distance

1. Close-range detection

Within 250 +/-30 mm (9.84 +/-1.18 in.)

2. Medium-range detection 250 +/-30 to 400 +/-40 mm (9.84 +/-1.18 to 15.7 +/-1.57 in.)
3. Long-range detection

400 +/-40 to 600 +/-60 mm (15.7 +/-1.57 to 23.6 +/-2.36 in.)

Detection

Distance

1. Close-range detection

Within 400 +/-40 mm (15.7 +/-1.57 in.)

2. Medium-range detection 400 +/-40 to 520 +/-60 mm (15.7 +/-1.57 to 20.5 +/-2.36 in.)
3. Long-range detection

520 +/-60 to 850 +/-90 mm (20.5 +/-2.36 to 33.5 +/-3.54 in.)

Detection

Distance

1. Close-range detection

Within 850 +/-85 mm (33.5 +/-3.35 in.)

2. Medium-range
detection

850 +/-85 to 1150 +/-115 mm (33.5 +/-3.35 to 45.3 +/-4.53 in.)

3. Long-range detection

1150 +/-115 to 1800 +/-180 mm (45.3 +/-4.53 to 70.9 +/-7.09
in.)

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Parking Assist/Monitoring - Tundra

HINT:

Ultrasonic waves are used to measure the detection range. However, the detection range may
vary depending on the ambient temperature.

2. Check the indicator and buzzer on the accessory meter when the front corner sensors have

detected an obstacle.

Operation condition;

OPERATION CONDITION CHART

Fig. 11: Identifying Indicator And Buzzer On Accessory Meter When Front Corner
Sensors Have Detected
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Accessory meter

INDICATOR AND BUZZER ACCESSORY METER REFERENCE

HINT:

Ultrasonic waves are used to measure the detection range. However, the detection range may
vary depending on the ambient temperature.

3. Check the accessory meter and buzzer when the front corner sensors, back sensors and rear

Ignition

Switch

Clearance Sonar Main

Switch

Shift Lever

Position

Vehicle Speed

ON

ON

D, S, N

10 km/h (6.2 mph) or

less

Detection Range

Buzzer

Indicator displayed

1. Close-range
detection

Sounds continuously

Corner indicator(s) are
illuminated

2. Medium-range
detection

Sounds intermittently (ON: 75 msec. /
OFF: 75 msec.)

Corner indicator(s) are
blinking

3. Long-range
detection

Sounds intermittently (ON: 150 msec. /
OFF: 150 msec.)

Corner indicator(s) are
blinking

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Parking Assist/Monitoring - Tundra

corner sensors have detected an obstacle.

Operation condition:

INDICATOR AND BUZZER OPERATION CONDITION CHART

Fig. 12: Identifying Indicator And Buzzer On Accessory Meter When Front Corner
Sensors, Back Sensors And Rear Corner Sensors Detected
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Accessory meter

INDICATOR AND BUZZER ACCESSORY METER REFERENCE

HINT:

Ultrasonic waves are used to measure the detection range. However, the detection range may
vary depending on the ambient temperature.

PROBLEM SYMPTOMS TABLE

HINT:



Use the table below to help determine the cause of the problem symptom. The potential causes of the
symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each
symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.



Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Ignition Switch Clearance Sonar Main Switch Shift Lever Position

ON

ON

R position

Detection Range

Buzzer

Indicator displayed

1. Close-range
detection

Sounds continuously

Corner indicator(s) are illuminated
and/or back indicator is illuminated

2. Medium-range
detection

Sounds intermittently (ON: 75
msec. / OFF: 75 msec.)

Corner indicator(s) are blinking and/or
back indicator is blinking

3. Long-range
detection

Sounds intermittently (ON: 150
msec. / OFF: 150 msec.)

Corner indicator(s) are blinking and/or
back indicator is blinking

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Parking Assist/Monitoring - Tundra

Intuitive parking assist system

INTUITIVE PARKING ASSIST SYSTEM - PROBLEM SYMPTOMS CHART

Symptom

Suspected Area

See

System does not operate at all
(Initial check function also does
not operate)

Clearance warning ECU power
source circuit

CLEARANCE WARNING ECU

POWER SOURCE CIRCUIT

Clearance warning ECU

TERMINALS OF ECU

Clearance warning indicator
indicates front clearance sonar
sensor is frozen

Clean the sensor surface

INTUITIVE PARKING ASSIST

SYSTEM

Front clearance sonar sensor LH
circuit

FRONT CLEARANCE SONAR

SENSOR LH CIRCUIT

Front clearance sonar sensor RH
circuit

FRONT CLEARANCE SONAR

SENSOR RH CIRCUIT

Clearance warning ECU

TERMINALS OF ECU

Clearance warning indicator
indicates rear clearance sonar
sensor is frozen

Clean the sensor surface

INTUITIVE PARKING ASSIST

SYSTEM

Rear clearance sonar sensor LH
circuit

REAR CLEARANCE SONAR

SENSOR LH CIRCUIT

Rear clearance sonar sensor RH
circuit

REAR CLEARANCE SONAR

SENSOR RH CIRCUIT

Clearance warning ECU

TERMINALS OF ECU

Clearance warning indicator
indicates back sonar sensor is
frozen

Clean the sensor surface

INTUITIVE PARKING ASSIST

SYSTEM

Back sonar sensor LH circuit

BACK SONAR SENSOR LH

CIRCUIT

Back sonar sensor RH circuit

BACK SONAR SENSOR RH

CIRCUIT

Clearance warning ECU

TERMINALS OF ECU

Clearance warning indicator
indicates open in rear clearance
sonar sensor circuit

Rear clearance sonar sensor RH
circuit

REAR CLEARANCE SONAR

SENSOR RH CIRCUIT

Back sonar sensor RH circuit

BACK SONAR SENSOR RH

CIRCUIT

Back sonar sensor LH circuit

BACK SONAR SENSOR LH

CIRCUIT

Rear clearance sonar sensor LH
circuit

REAR CLEARANCE SONAR

SENSOR LH CIRCUIT

Clearance warning ECU

TERMINALS OF ECU

Clearance warning indicator
indicates open in front clearance
sonar sensor circuit

Front clearance sonar sensor LH
circuit

FRONT CLEARANCE SONAR

SENSOR LH CIRCUIT

Front clearance sonar sensor RH
circuit

FRONT CLEARANCE SONAR

SENSOR RH CIRCUIT

Clearance warning ECU

TERMINALS OF ECU

System operates even when
vehicle speed is 10 km/h (6.2

Vehicle speed signal circuit

VEHICLE SPEED SIGNAL

CIRCUIT

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Parking Assist/Monitoring - Tundra