RM3660EC _56 Audio / Visual / Telematics _080754 PARK ASSIST / MONITORING _0470653 TOYOTA PARKING ASSIST-SENSOR SYSTEM(w/ Parking Support Brake System) J

PARK ASSIST / MONITORING  TOYOTA PARKING ASSIST-SENSOR SYSTEM(w/ Parking Support Brake System)  Sensor Frozen Indication (Dirty or Frozen)  


DESCRIPTION

When the ultrasonic sensor is dirty or frozen, "Parking Assist Unavailable Clean Parking Assist Sensor" is displayed on the multi-information display in the combination meter assembly.

CAUTION / NOTICE / HINT

NOTICE:

Perform registration after replacing or removing and installing the ultrasonic sensor or clearance warning ECU assembly.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM (w/ Parking Support Brake System)>CALIBRATION


PROCEDURE

1.READ VALUE USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Clearance Warning / Data List.


e.

Read the Data List according to the display on the GTS.

Body Electrical > Clearance Warning > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Circuit Open Open circuit status of the ultrasonic sensor NO/YES NO: No sensor open circuit
YES: Sensor open circuit 		RoB X20C4 is output if YES
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Freeze/Dirt Frozen/dirty status of the ultrasonic sensor NO/YES NO: Sensor not frozen/dirty
YES: Sensor frozen/dirty 		RoB X20C4 is output if YES
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Foreign Material Fixing Foreign matter stuck status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck on sensor
YES: Foreign matter stuck on sensor 		RoB X20C4 is output if YES
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Parameter Malfunction Parameter malfunction status of the ultrasonic sensor NO/YES NO: No sensor parameter malfunction
YES: Sensor parameter malfunction 		RoB X20C4 is output if YES
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Flowing Water Continuously Continuous running water status of the ultrasonic sensor NO/YES NO: No sensor continuous running water
YES: Sensor continuous running water 		RoB X20C4 is output if YES
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Circuit Open Open circuit status of the ultrasonic sensor NO/YES NO: No sensor open circuit
YES: Sensor open circuit 		RoB X20C5 is output if YES
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Freeze/Dirt Frozen/dirty status of the ultrasonic sensor NO/YES NO: Sensor not frozen/dirty
YES: Sensor frozen/dirty 		RoB X20C5 is output if YES
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Foreign Material Fixing Foreign matter stuck status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck on sensor
YES: Foreign matter stuck on sensor 		RoB X20C5 is output if YES
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Parameter Malfunction Parameter malfunction status of the ultrasonic sensor NO/YES NO: No sensor parameter malfunction
YES: Sensor parameter malfunction 		RoB X20C5 is output if YES
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Flowing Water Continuously Continuous running water status of the ultrasonic sensor NO/YES NO: No sensor continuous running water
YES: Sensor continuous running water 		RoB X20C5 is output if YES
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Circuit Open Open circuit status of the ultrasonic sensor NO/YES NO: No sensor open circuit
YES: Sensor open circuit 		RoB X20C6 is output if YES
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Freeze/Dirt Frozen/dirty status of the ultrasonic sensor NO/YES NO: Sensor not frozen/dirty
YES: Sensor frozen/dirty 		RoB X20C6 is output if YES
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Foreign Material Fixing Foreign matter stuck status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck on sensor
YES: Foreign matter stuck on sensor 		RoB X20C6 is output if YES
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Parameter Malfunction Parameter malfunction status of the ultrasonic sensor NO/YES NO: No sensor parameter malfunction
YES: Sensor parameter malfunction 		RoB X20C6 is output if YES
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Flowing Water Continuously Continuous running water status of the ultrasonic sensor NO/YES NO: No sensor continuous running water
YES: Sensor continuous running water 		RoB X20C6 is output if YES
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Circuit Open Open circuit status of the ultrasonic sensor NO/YES NO: No sensor open circuit
YES: Sensor open circuit 		RoB X20C7 is output if YES
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Freeze/Dirt Frozen/dirty status of the ultrasonic sensor NO/YES NO: Sensor not frozen/dirty
YES: Sensor frozen/dirty 		RoB X20C7 is output if YES
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Foreign Material Fixing Foreign matter stuck status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck on sensor
YES: Foreign matter stuck on sensor 		RoB X20C7 is output if YES
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Parameter Malfunction Parameter malfunction status of the ultrasonic sensor NO/YES NO: No sensor parameter malfunction
YES: Sensor parameter malfunction 		RoB X20C7 is output if YES
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Flowing Water Continuously Continuous running water status of the ultrasonic sensor NO/YES NO: No sensor continuous running water
YES: Sensor continuous running water 		RoB X20C7 is output if YES
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Circuit Open Open circuit status of the ultrasonic sensor NO/YES NO: No sensor open circuit
YES: Sensor open circuit 		RoB X20C8 is output if YES
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Freeze/Dirt Frozen/dirty status of the ultrasonic sensor NO/YES NO: Sensor not frozen/dirty
YES: Sensor frozen/dirty 		RoB X20C8 is output if YES
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Foreign Material Fixing Foreign matter stuck status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck on sensor
YES: Foreign matter stuck on sensor 		RoB X20C8 is output if YES
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Foreign Material Fixing (Curl Up) Foreign matter stuck (curl up) status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck (curl up) on sensor
YES: Foreign matter stuck (curl up) on sensor 		RoB X20C8 is output if YES
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Parameter Malfunction Parameter malfunction status of the ultrasonic sensor NO/YES NO: No sensor parameter malfunction
YES: Sensor parameter malfunction 		RoB X20C8 is output if YES
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Flowing Water Continuously Continuous running water status of the ultrasonic sensor NO/YES NO: No sensor continuous running water
YES: Sensor continuous running water 		RoB X20C8 is output if YES
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Circuit Open Open circuit status of the ultrasonic sensor NO/YES NO: No sensor open circuit
YES: Sensor open circuit 		RoB X20C9 is output if YES
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Freeze/Dirt Frozen/dirty status of the ultrasonic sensor NO/YES NO: Sensor not frozen/dirty
YES: Sensor frozen/dirty 		RoB X20C9 is output if YES
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Foreign Material Fixing Foreign matter stuck status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck on sensor
YES: Foreign matter stuck on sensor 		RoB X20C9 is output if YES
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Foreign Material Fixing (Curl Up) Foreign matter stuck (curl up) status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck (curl up) on sensor
YES: Foreign matter stuck (curl up) on sensor 		RoB X20C9 is output if YES
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Parameter Malfunction Parameter malfunction status of the ultrasonic sensor NO/YES NO: No sensor parameter malfunction
YES: Sensor parameter malfunction 		RoB X20C9 is output if YES
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Flowing Water Continuously Continuous running water status of the ultrasonic sensor NO/YES NO: No sensor continuous running water
YES: Sensor continuous running water 		RoB X20C9 is output if YES
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Circuit Open Open circuit status of the ultrasonic sensor NO/YES NO: No sensor open circuit
YES: Sensor open circuit 		RoB X20CA is output if YES
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Freeze/Dirt Frozen/dirty status of the ultrasonic sensor NO/YES NO: Sensor not frozen/dirty
YES: Sensor frozen/dirty 		RoB X20CA is output if YES
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Foreign Material Fixing Foreign matter stuck status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck on sensor
YES: Foreign matter stuck on sensor 		RoB X20CA is output if YES
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Foreign Material Fixing (Curl Up) Foreign matter stuck (curl up) status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck (curl up) on sensor
YES: Foreign matter stuck (curl up) on sensor 		RoB X20CA is output if YES
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Parameter Malfunction Parameter malfunction status of the ultrasonic sensor NO/YES NO: No sensor parameter malfunction
YES: Sensor parameter malfunction 		RoB X20CA is output if YES
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Flowing Water Continuously Continuous running water status of the ultrasonic sensor NO/YES NO: No sensor continuous running water
YES: Sensor continuous running water 		RoB X20CA is output if YES
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Circuit Open Open circuit status of the ultrasonic sensor NO/YES NO: No sensor open circuit
YES: Sensor open circuit 		RoB X20CB is output if YES
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Freeze/Dirt Frozen/dirty status of the ultrasonic sensor NO/YES NO: Sensor not frozen/dirty
YES: Sensor frozen/dirty 		RoB X20CB is output if YES
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Foreign Material Fixing Foreign matter stuck status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck on sensor
YES: Foreign matter stuck on sensor 		RoB X20CB is output if YES
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Foreign Material Fixing (Curl Up) Foreign matter stuck (curl up) status of the ultrasonic sensor NO/YES NO: Foreign matter not stuck (curl up) on sensor
YES: Foreign matter stuck (curl up) on sensor 		RoB X20CB is output if YES
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Parameter Malfunction Parameter malfunction status of the ultrasonic sensor NO/YES NO: No sensor parameter malfunction
YES: Sensor parameter malfunction 		RoB X20CB is output if YES
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Flowing Water Continuously Continuous running water status of the ultrasonic sensor NO/YES NO: No sensor continuous running water
YES: Sensor continuous running water 		RoB X20CB is output if YES
Body Electrical > Clearance Warning > Data List
Tester Display
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Circuit Open
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Freeze/Dirt
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Foreign Material Fixing
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Parameter Malfunction
Ultrasonic Sensor (Front Right Center) Temporarily Unavailable - Flowing Water Continuously
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Circuit Open
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Freeze/Dirt
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Foreign Material Fixing
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Parameter Malfunction
Ultrasonic Sensor (Front Left Center) Temporarily Unavailable - Flowing Water Continuously
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Circuit Open
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Freeze/Dirt
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Foreign Material Fixing
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Parameter Malfunction
Ultrasonic Sensor (Front Right Corner) Temporarily Unavailable - Flowing Water Continuously
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Circuit Open
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Freeze/Dirt
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Foreign Material Fixing
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Parameter Malfunction
Ultrasonic Sensor (Front Left Corner) Temporarily Unavailable - Flowing Water Continuously
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Circuit Open
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Freeze/Dirt
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Foreign Material Fixing
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Foreign Material Fixing (Curl Up)
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Parameter Malfunction
Ultrasonic Sensor (Rear Right Center) Temporarily Unavailable - Flowing Water Continuously
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Circuit Open
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Freeze/Dirt
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Foreign Material Fixing
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Foreign Material Fixing (Curl Up)
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Parameter Malfunction
Ultrasonic Sensor (Rear Left Center) Temporarily Unavailable - Flowing Water Continuously
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Circuit Open
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Freeze/Dirt
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Foreign Material Fixing
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Foreign Material Fixing (Curl Up)
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Parameter Malfunction
Ultrasonic Sensor (Rear Right Corner) Temporarily Unavailable - Flowing Water Continuously
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Circuit Open
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Freeze/Dirt
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Foreign Material Fixing
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Foreign Material Fixing (Curl Up)
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Parameter Malfunction
Ultrasonic Sensor (Rear Left Corner) Temporarily Unavailable - Flowing Water Continuously
50003 438 104,105,106,108,109,110,111,112,114,115,116,117,118,120,121,122,123,124,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151

Result:
Result Proceed to
Sensor frozen history displays "YES" A
Sensor frozen history displays "NO" B



A

2.CLEAN ULTRASONIC SENSORS

B

3.CHECK FOR DTC
2.CLEAN ULTRASONIC SENSORS
a.

Clean the ultrasonic sensor from dirty or frozen.


Result:
Proceed to
NEXT



NEXT

END

3.CHECK FOR DTC
a.

According to the display on the GTS, check for DTCs.

Body Electrical > Clearance Warning > Trouble Codes
50001 438

b.

According to the display on the GTS, clear the DTCs.

Body Electrical > Clearance Warning > Clear DTCs
50002 438

c.

Recheck for DTCs

Body Electrical > Clearance Warning > Trouble Codes
50001 438

Result:
Result Proceed to
DTCs are not output A
DTC is output (for Front) B
DTC is output (for Rear) C



A

REPLACE CLEARANCE WARNING ECU ASSEMBLY

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>CLEARANCE WARNING ECU>REMOVAL


B

REPLACE ULTRASONIC SENSOR (for Front)

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>ULTRASONIC SENSOR (for Front Side)>REMOVAL


C

REPLACE ULTRASONIC SENSOR (for Rear)

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>ULTRASONIC SENSOR (for Rear Side)>REMOVAL