Millimeter Wave Radar Sensor - Floor Slope Compensation (T-SB-0088-21)

MILLIMETER WAVE RADAR SENSOR - FLOOR SLOPE COMPENSATION

TECHNICAL SERVICE BULLETIN

APPLICABILITY

YEAR(S)	MODEL(S)	ADDITIONAL INFORMATION
2013 - 2015	Avalon, Avalon HV, Land Cruiser
2015 - 2018	Camry, Camry HV
2014 - 2016	Highlander, Highlander HV
2016 - 2018	Mirai
2012 - 2015	Prius PHV
2012 - 2017	Prius V
2010 - 2015	Prius
2011 - 2017	Sienna

INTRODUCTION

For proper calibration of the millimeter wave radar sensor, the vehicle and radar target must be on a level surface with a consistent plane. If a level surface with a consistent plane is not available, use the Floor Slope Compensation Procedure in this service bulletin in conjunction with the appropriate model and model year Repair Manual instructions when adjusting the millimeter wave radar sensor.

WARRANTY INFORMATION

OP CODE	DESCRIPTION	TIME	OFP	T1	T2
N/A	Not Applicable to Warranty	-	-	-	-

REQUIRED TOOLS & EQUIPMENT

SPECIAL SERVICE TOOLS (SST)	PART NUMBER	QTY
Laser Level(1)	01816-00103	1
Tri-pod(1)	01816-00104	1
Attachment A(1)	09989-00010-01, 09989-00010-L	1
Digital Angle Gauge(1)	01815-00102	1
(1) Essential SST.

REQUIRED TOOLS & MATERIAL	QUANTITY
Tape Measure	1

FLOOR SLOPE COMPENSATION PROCEDURE

1. Prepare the vehicle for calibration.
   1. Park the vehicle where the calibration will be performed.
   2. Check the tire pressures and adjust as necessary.
   3. Remove ALL excess weight from the vehicle (heavy objects, luggage, etc.).
2. Determine the floor slope and set the vertical angle of the millimeter wave radar sensor.
   NOTE: Refer to the instruction video link: Floor Slope Measurement and Millimeter Wave Radar Sensor Vertical Angle Calibration Procedure. 

   multimedia:A supplement to the article is available.
3. Install the laser level onto the tri-pod.
   1. Install the tri-pod head attachment onto the base of the laser level.
   2. Engage the tri-pod head attachment onto the tri-pod and lock it in position.
   NOTE: Refer to the instruction video link: 3 Line Chalk Line (Automatic Laser Level) SST: 01816-001003 Operation Overview. 

   multimedia:A supplement to the article is available.
4. Measure the floor slope on BOTH sides of the vehicle.
   1. Place the tri-pod and laser approximately 6 ft. away from the side of the vehicle.
   2. Level the tri-pod base and head using the built-in bubble levels.
   3. Turn the laser ON and ensure that the laser switch is placed in the unlocked position so it can automatically level.
   4. Measure the distance from the floor to the laser line at the vertical center of the front wheel as shown and record the value.
      NOTE: Measure using inches or millimeters.
   5. Measure the distance from the floor to the laser line at the vertical center of the rear wheel and record the value.
   6. Repeat steps  A -  E for the opposite side.
5. Calculate the vertical angle for the millimeter wave radar sensor.
   1. See Graphic Below forSlope Calculator  , select the appropriate vehicle from the dropdown, and enter the measured values at each wheel in the correct locations.
      Fig 1: Slope Calculator - Floor Slope Calculation Sheet Instructions