Toyota Tundra (2015 year). Manual — part 156
It is not trouble other than the rear corner sensor RH in this example. Please do not change it other than
the rear corner sensor RH.
(b) Frozen indication
(1) If a sensor is covered with foreign matter, such as mud or snow, the affected sensor is displayed as
shown in the illustration.
HINT:
The example shows that the No. 2 ultrasonic sensor (rear corner sensor RH) is covered with foreign
matter.
The rear right detection area illuminates and the other indicator areas are not illuminated (5 cycles).
All indicator areas illuminate (after 5 cycles).
If "CLEAN SONAR" is displayed, refer to "Frozen indication is displayed in self-check function" in the
Problem Symptoms Table to inspect the problem
.
It is not trouble other than the rear corner sensor RH in this example. Please do not change it other than
the rear corner sensor RH.
3. DETECTION RANGE MEASUREMENT AND INDICATOR CHECK
NOTICE:
Make sure that the vehicle does not move by applying the parking brake firmly.
(a) Turn the ignition switch to ON.
(b) Move the shift lever to R to check the front corner sensors, rear corner sensors and back sensors.
PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SY...
(c) Move the shift lever to the D, S and N position to check the front corner sensors.
(d) Turn the back sonar or clearance sonar switch assembly ON.
(2) Rear corner sensors detection range
PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SY...
(3) Rear center sensors detection range
(f) When the No. 1 ultrasonic sensors (front corner sensor) have detected an obstacle, check the multi-
information display displays and buzzer sounds.
Operation Condition
IGNITION
SWITCH
BACK SONAR OR CLEARANCE SONAR SWITCH
ASSEMBLY
SHIFT LEVER
POSITION
VEHICLE SPEED
ON
ON
D, S, N, R
10 km/h (6.2 mph) or
less
(1) Check the buzzer sounds with the back sonar or clearance sonar switch assembly ON.
Front corner detection range
PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SY...
DETECTION
DISTANCE
1. Close-range detection
Within 300 +/-30 mm (11.8 +/-1.18 in.)
2. Medium-range detection
300 +/-30 to 450 +/-50 mm (11.8 +/-1.18 to 17.7 +/-1.97 in.)
3. Long-range detection
450 +/-50 to 600 +/-60 mm (17.7 +/-1.97 to 23.6 +/-2.36 in.)
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 combination meter
assembly when the front corner sensors have detected an
obstacle.
Combination meter assembly
DETECTION RANGE
BUZZER
INDICATOR
DISPLAYED
1. Close-range
detection
Sounds continuously
Corner indicator(s) are
blinking
2. Medium-range
detection
Sounds intermittently
(ON: 75 msec. / OFF:
75 msec.)
Corner indicator(s) are
illuminated
3. Long-range
detection
Sounds intermittently
(ON: 150 msec. / OFF:
150 msec.)
Corner indicator(s) are
illuminated
HINT:
Ultrasonic waves are used to measure the detection range.
However, the detection range may vary depending on the
ambient temperature.
(g) When the No. 2 ultrasonic sensors (rear corner sensor) have detected an obstacle, check the multi-
information display in the combination meter assembly displays and buzzer in the combination meter
assembly sounds with the back sonar or clearance sonar switch assembly ON.
Operation Condition
IGNITION
SWITCH
BACK SONAR OR CLEARANCE SONAR SWITCH
ASSEMBLY
SHIFT LEVER
POSITION
VEHICLE
SPEED
ON
ON
R
No Limit
(1) Check the buzzer sounds with the back sonar or clearance sonar switch assembly ON.
PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SY...
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