RM38N0EC _56 Audio / Visual / Telematics _111825 PARK ASSIST / MONITORING _0501856 TOYOTA PARKING ASSIST-SENSOR SYSTEM J

PARK ASSIST / MONITORING  TOYOTA PARKING ASSIST-SENSOR 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>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)>REMOVAL


C

REPLACE ULTRASONIC SENSOR (for Rear)

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