NHTSA ID Number: 10161530
Manufacturer Communication Number: K0B_Tunda Tacoma
TSB/Document Date: 2019-06-24
Summary
Job Aid: JOB AID FOR SPECIAL SERVICE CAMPAIGN K0B MILLIMETER WAVE RADAR SENSOR CERTAIN: 2018 ? 2019 TACOMA 2018 ? 2019 TUNDRA. Update 5/29/2019: Modified Vehicle Labels are now available (p. 40)
c. Using general purpose cleaner and a clean towel, clean the back side of the MWRS
sensor and the emblem area on the back side of the grille.
6. DETERMINE GRILLE TYPE
Determine Grill Type
Tacoma Bar Type
Tacoma Mesh Type
Proceed to Step 7 Apply EPT
Sealer – Bar Type on p.10
Proceed to Step 8 Apply EPT
Sealer – Mesh Type on p.12
7. APPLY EPT-SEALER – Tacoma Bar Type
Note: This application will use P/N 88278-0C010. (75mm x 150mm x 5mm)
This process is only for
Tacoma’s with the Bar
type grille:
Video: Not available at this time
(cont.)
10
a. Apply the EPT Sealer to the back side of the MWRS in the position shown below:
•
•
•
•
Start applying the EPT Sealer sheet to the vertical surface of the radiator grille,
just above the MWRS.
It will be necessary to push the EPT Sealer into the plastic tab at the top, creating
a hole in the sealer.
Wrap the EPT Sealer around the wire harness, as shown.
Using heavy finger pressure, thoroughly press the entire surface of the EPT sealer
to securely adhere it to all contact surfaces of the MWRS and grille.
Recommended temperature for adhesion is 50° F and above.
Keep stock at room temperature.
Continue to Step 9 on page 13
11
8. APPLY EPT-SEALER – Tacoma Mesh Type
Note: This application will use P/N 88278-0C010. (75mm x 150mm x 5mm)
This process is only for
Tacoma’s with the Mesh
type grille:
Video: Tacoma Mesh Type Repair – EPT-Sealer Installation
a. Apply the EPT Sealer to the back side of the MWRS in the position shown below:
•
•
Start applying the EPT Sealer sheet to the horizontal lip of the radiator grille to
create a waterproof shield over the top of the sensor.
Using heavy finger pressure, thoroughly press the entire surface of the EPT sealer
to securely adhere it to all contact surfaces of the MWRS.
Recommended temperature for adhesion is 50° F and above.
Keep stock at room temperature.
12
9. REINSTALL RADIATOR GRILLE
a. Engage the 10 guides to install the radiator grille.
b. Install the 2 clips.
c. Install the 2 screws.
d. Remove the protective tape.
e. Engage the clamp.
f. Connect the electrical connector.
10. DETERMINE IF MWRS ADJUSTMENT IS NECESSARY
YES
Was the MWRS replaced with a
NEW sensor?
Proceed to Step #11 ADJUST
NEW MWRS on p. 14
No
Proceed to Section XIV.
DETERMINE CALIBRATION
STATUS on p. 33
13
11. ADJUST NEW MWRS
Because the modifications on this vehicle have changed the height of the MWRS from its
original condition, it will be necessary to adjust the SST reflector height to match the height of
the MWRS. When following the MWRS Adjustment procedure in the Repair Manual, change
the height of the SST reflector to match the center of the MWRS in the grille.
a. Adjust the height of the SST reflector to the center of the MWRS in the grille.
b. Follow the Repair Manual procedure to properly calibrate the MWRS:
CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT
(RM1000000018991)
Proceed to DETERMINE CALIBRATION STATUS on p. 33
14
XI. TACOMA - REPAIR B
TACOMA Repair B vehicles will have a radiator grille of this design:
1. REMOVE RADIATOR GRILLE
a. Disconnect the electrical connector.
b. Disengage the clamp.
c. Apply protective tape to the bumper around the radiator
grille.
d. Remove the 2 screws.
e. Remove the 2 clips.
f. Disengage the 10 guides by pulling the grille forward to
disengage the remaining clips.
15
2. REMOVE MWRS FROM THE GRILLE
a. Place a blanket onto a table or workbench.
b. Place the radiator grille onto the blanket, front die down.
c. Disconnect the electrical connector.
d. Remove the 2 bolts and screw.
e. Disengage the 2 guides and remove the MWRS from the
grille.
3. DETERMINE IF A NEW MWRS IS REQUIRED
YES
Was there a DTC that required
MWRS replacement?
No
Replace the MWRS
Use the original MWRS
Proceed to Step #4 Determine if
EPT-Sealer is Necessary for
NEW Sensor on p. 17
Proceed to Step #5 Apply EPTSealer to MWRS p. 17
16
4. DETERMINE IF EPT-SEALER IS NECESSARY FOR NEW SENSOR
Does the NEW MWRS have vent
holes on the back cover?
.NO.
EPT-Sealer will be
necessary. Proceed to
Step #5. on p. 17
.Yes.
EPT-Sealer WILL NOT be
necessary. Proceed to
Step #9 on p. 20
5. APPLY EPT-SEALER TO MWRS
Note: This application will use P/N 88278-0C020. (46mm x 32mm x 5mm)
The EPT-Sealer will be applied in a specific way, using the following points for orientation. Please
note the arrangement of corners A, B, C, D.
Video: EPT Sealer Installation Repair B
Recommended temperature for adhesion is 50° F and above.
Keep stock at room temperature.
17
6. CLEAN THE APPLICATION AREA
a. Using general purpose cleaner, remove all traces of
dust, dirt, and oils or grease from the application
area (indicated within the red circle). Be careful not
to get any liquids into the 2 vent holes.
Note: The MWRS housing has been painted white in
these photos to provide more contrast in the pictures.
The actual MWRS housings will be black.
Left Side
7. APPLY THE EPT SEALER
a. Wear Nitrile Gloves to prevent adhesive
contamination.
b. Apply the EPT-Sealer to the left side of the MWRS
to the following standard:
• Left Side View: Corner “A” of the EPTSealer should be placed at the inner corner
of the MWRS as indicated.
• Top View: Place the EPT-Sealer on the
surface of the side vent hole (it is ok to cover
the side vent hole). DO NOT place the EPT
Sealer on top of the ridge, as indicated with
the yellow X’s.
Note: A diagram of the EPT sealer can be found on
page 14.
c. Press the EPT sealer firmly into place in this area to
seat it thoroughly. Use a flathead screw driver or
trim tool if necessary to reach the corner.
Top View
18
d. Roll the EPT-Sealer Corner “B” onto the top edge of
the MWRS sensor as shown, aligning it’s edge
with the end of the metal bracket. Be sure to
keep the EPT-Sealer off the upper ridge.
e. Press the EPT sealer firmly into place in this area to
seat it thoroughly.
f. Bend the lower flap (Corner “C”) onto the face of the
MWRS and align the edge with the edge of the
upper flap and metal bracket.
g. Press the EPT-Sealer into the face of the MWRS to
seat it firmly. DO NOT press in the area indicated
as it’s critical there is an air gap for the vent.
ONLY PRESS THE EPT-SEALER ONTO THE
UPPER FACE OF THE MWRS. DO NOT
press the EPT sealer into the vent hole.
It’s critical that the vent hole remains open.
19
h. Roll Corner “D” downward from the top, aligning the
edge with the edge of the lower section and metal
bracket.
i. Press the EPT sealer into place, being careful to
leave an airgap above the rear vent hole.
8. INSPECT THE EPT-SEALER APPLICATION
a. Verify that all the contact points of the EPT sealer
are thoroughly applied.
b. Verify that the bottom is still open to properly
allow airflow to the rear vent hole.
Note: In case of failure during inspection, start over
with a new piece of EPT-Sealer.
9. INSTALL THE MWRS
a. Engage the 2 guides of the radiator grille into the guide holes of the MWRS.
b. Install the 2 bolts and screw.
Torque: 2.5 N∙m (25 kgf∙cm, 22 in.lbs)
10. REINSTALL THE RADIATOR GRILLE
a. Engage the 10 guides to install the radiator grille.
b. Install the 2 clips.
c. Install the 2 screws.
d. Remove the protective tape.
e. Engage the clamp.
f. Connect the electrical connector.
20
11. ADJUST NEW MWRS
Because the modifications on this vehicle have changed the height of the MWRS from its
original condition, it will be necessary to adjust the SST reflector height to match the height of
the MWRS. When following the MWRS Adjustment procedure in the Repair Manual, change
the height of the SST reflector to match the center of the MWRS in the grille.
a. Adjust the height of the SST reflector to the center of the MWRS in the grille.
b. Follow the Repair Manual procedure to properly calibrate the MWRS.
CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT
(RM1000000018991)
Proceed to DETERMINE CALIBRATION STATUS on p. 33
21
XII. TUNDRA - REPAIR A
TUNDRA Repair A vehicles will have a radiator grille of this design:
1. REMOVE RADIATOR GRILLE
a. Detach the 2 claws and 3 guides to remove the cover.
b. Disconnect the electrical connector under the cover.
c. Place protective tape on the front bumper and headlights,
at the edge of the grille assembly, to protect the surfaces
during removal and installation.
d. Remove the 4 screws and 2 clips
e. Detach the 4 claws and 3 clips by pulling the grille
assembly forward.
22
2. DETERMINE IF A NEW MWRS IS REQUIRED
YES
Was there a DTC that required
MWRS replacement?
No
Proceed to Step #5 PREPARE
THE MWRS FOR EPT-SEALER
APPLICATION on p. 24
Proceed to Step #3 REPLACE
MWRS on p. 23
3. REPLACE MWRS (only if required)
a. Remove the 2 bolts and screw.
b. Remove the original MWRS.
c. Install the NEW MWRS by engaging the 2 guides of the
grille into the guide holes of the MWRS.
d. Install the 2 bolts and screw.
Torque: 2.5 N∙m (25 kgf∙cm, 22 in.lbs)
4. DETERMINE IF EPT-SEALER IS NECESSARY FOR NEW SENSOR
Does the NEW MWRS have vent
holes on the back cover?
.NO.
EPT-Sealer will be
necessary. Proceed to
Step #5. on p. 24
.Yes.
EPT-Sealer WILL NOT be
necessary. Proceed to
Step #7 on p. 24
23
5. PREPARE THE MWRS FOR EPT APPLICATION
a. Place a blanket onto the table or workbench.
b. Place the radiator grille onto the blanket, front side down.
c. Using general purpose cleaner and a clean towel, clean the back side of the MMRS sensor
and the emblem area on the back side of the grille.
6. APPLY EPT-SEALER
Note: This application will use P/N 88278-0C010. (75mm x 150mm x 5mm)
Video: Tundra EPT Sealer Installation Type A
a. Apply the EPT Sealer to the back face of the MWRS in the position shown below.
b. Roll the EPT sealer onto the inside lip of the radiator grille to create a waterproof shield over
the top of the sensor.
c. Using finger pressure, thoroughly press the entire surface of the EPT sealer to securely
adhere it to all contact surfaces.
Recommended temperature for adhesion is 50° F and above.
Keep stock at room temperature.
7. REINSTALL THE RADIATOR GRILLE
a. Attach the 4 claws and 3 clips to install the grille.
b. Install the 4 screws and 2 clips.
c. Remove the protective tape.
d. Connect the electrical connector.
e. Reinstall the cover.
24
8. DETERMINE IF MWRS ADJUSTMENT IS NECESSARY
YES
Was the MWRS replaced with a
NEW sensor?
Proceed to Step #9 ADJUST
NEW MWRS on p. 25
No
Proceed to Section XIV.
DETERMINE CALIBRATION
STATUS on p. 33
9. ADJUST NEW MWRS
Because the modifications on this vehicle have changed the height of the MWRS from its
original condition, it will be necessary to adjust the SST reflector height to match the height of
the MWRS. When following the MWRS Adjustment procedure in the Repair Manual, change
the height of the SST reflector to match the center of the MWRS in the grille.
a. Adjust the height of the SST reflector to the center of the MWRS in the grille.
b. Follow the Repair Manual procedure to properly calibrate the MWRS.
CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT
(RM1000000015LKF)
Proceed to DETERMINE CALIBRATION STATUS on p. 33
25
XIII.
TUNDRA - REPAIR B
TUNDRA Repair B vehicles will have radiator grilles of these designs:
1. REMOVE RADIATOR GRILLE
a. Detach the 2 claws and 3 guides to remove the side grille.
b. Disconnect the electrical connector under the cover.
c. Place protective tape on the front bumper and headlights,
at the edge of the grille assembly, to protect the surfaces
during removal and installation.
d. Remove the 4 screws and 2 clips
e. Detach the 4 claws and 3 clips by pulling the grille
assembly forward.
f. Place a blanket onto the table or workbench.
g. Place the radiator grille onto the blanket, front side down.
26
2. REMOVE MWRS FROM GRILLE
a. Disconnect the electrical connector.
b. Remove the 2 bolts and 1 screw.
c. Remove the MWRS from the radiator grille.
3. DETERMINE IF A NEW MWRS IS REQUIRED
YES
Was there a DTC that required
MWRS replacement?
No
Replace the MWRS
Use the original MWRS
Proceed to Step #4
DETERMINE IF EPT-SEALER
IS NECESSARY for NEW
Sensor on p. 27
Proceed to Step #5 APPLY
EPT-SEALER TO MWRS p. 28
4. DETERMINE IF EPT-SEALER IS NECESSARY FOR NEW SENSOR
Does the NEW MWRS have vent
holes on the back cover?
.NO.
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TSB/Document ID: K0B_Tunda Tacoma
Replacement Service Bulletin Number:
MFR Communication Date: 2019-05-29
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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