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INTRODUCTION

MAIN COMpONENTS

TOOLS AND  

pREpARATION

MEASUREMENT

LASER bEAM  

AxIS ADJUSTMENT

 

UppER/LOWER SIDE (A)

    Between 2.7° and 0°

 

RIGHT/LEFT SIDE (b)

 

  Between 4.0° and 0°

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STE

p

 12 E

x

AM
p

LE

SENSOR ADJUSTMENT

ADJUSTMENT 

p

ROCEDURE

12.

  When the Laser Cruise Divergence Data values are within the STANDARD 

VALUES FOR DIVERGENCE, check for a laser beam signal between the Laser 

Sensor and the reflector SST by moving the SST: 

 

a. 100mm to the 

left

 of Point G

    b. 100mm to the 

right

 of Point G

  If the “UPPER/LOWER SIDE” and “LEFT/RIGHT SIDE” values change 

 

when moving the reflector SST to the left and right, a laser beam signal 

is being sent by the sensor emitter and then reflected back to the sensor 

receiver by the SST.

13.

  Now return the reflector SST to Point G and make sure that the values are still 

within the Standard Values for Divergence.

Now that the sensor is within the Standard Values for Divergence, make 

sure to perform Steps 14 and 15 to store the adjustment data in the Laser 

Radar Cruise ECU and to complete the adjustment procedure.

STORING THE ADJUSTMENT DATA IN THE LASER RADAR CRUISE ECU
14.

  Turn the headlight switch from OFF to the TAIL position and observe the 

LASER CRUISE DIVERGENCE DATA screen on Techstream.

The adjustment is completed when:

•  UPPER/LOWER SIDE and RIGHT/LEFT SIDE readings show 

 

“0” and the system beeps for 10 seconds

•  UPPER/LOWER SIDE and RIGHT/LEFT SIDE alternately 

 

flash on the screen

15.  

Select 

NExT

 on Techstream to store

 the adjustment data in the Laser Radar 

Cruise ECU and complete the procedure.

If NExT is not selected, the adjustment data will not be stored.

DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 - 2012 SEQUOIA

Quick Training Guide – QT512A

Before beginning the beam axis adjustment procedure, make sure that the:

•  Headlight switch is in the OFF position.
•  Reflector SST is accurately placed on Point G.

1.

 Connect Techstream to DLC3, then turn power ON.

2

. Turn the ignition switch to ON.

3

. Start the Techstream program.

4.

  Select Connect to Vehicle.

5.

 From the Option pull-down, select LASER CRUISE and click Next.

6.

  Push the Cruise Control Main switch to ON.

7.

  From the System Select menu, select Laser Cruise and click the Next arrow.

8.

  From the Laser Cruise Live tab, select Utility.

9.

  Select Beam Axis Adjustment and click the Next arrow.

10

. From the Beam Axis Adjustment pop-up, click next.

11.  

Check that the Laser Cruise Divergence Data on Techstream is within the 

Standard Values of Divergence*.

If the Laser Cruise Divergence Data does not meet the Standard Values of 

Divergence, adjust the laser sensor by using the 

Mechanical Adjustment 

Method

 under the SENSOR ADJUSTMENT tab before continuing with Step 12.

Laser beam Axis Adjustment procedure

STANDARD VALUES FOR DIVERGENCE

Click all side tabs

©Toyota Motor Sales, U.S.A., Inc., 2012

Summary of Contents for Dynamic Laser Cruise Control System

Page 1: ...8 2012 SEQUOIA Quick Training Guide QT512A Click the ENTER button to view the Quick Training Guide This QTG aids in understanding Dynamic Laser Cruise Control system operation inspection and adjustment procedures Toyota Motor Sales U S A Inc 2012 ...

Page 2: ...er Cruise Control system has two cruise control modes 1 Constant Speed Control Mode This mode is used on conventional cruise control systems It is also called fixed speed control mode and is used for cruising at fixed speeds 2 Vehicle to Vehicle Distance Control Mode In this mode the cruise control system uses a laser sensor to detect a vehicle in front of you and measures the vehicle to vehicle d...

Page 3: ...ensor Distance Control Sensor VSC Warning Buzzer Multi Information Display CRUISE Main Indicator Light Master Warning Light Distance Control Switch Cruise Control Switch Main Switch RES MODE SET CANCEL Main Components INTERIOR COMPONENTS EXTERIOR COMPONENTS DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 Click all side tabs ...

Page 4: ...rtion detects the light reflected from the preceding vehicle The ECU inside the laser sensor then takes the light received by the sensor and converts it into an electrical signal From this electrical signal the preceding vehicle s distance and angle can be determined The following information explains general operation of the dynamic laser cruise control sensor and covers the key points of laser s...

Page 5: ...outlined in this guide to obtain the most accurate measurements The time you spend making precise measurements will ensure proper reflector SST placement and sensor adjustment Vehicle Pre Checks Refer to the tire pressure information label located on the door jamb for proper tire inflation pressure or refer to the Owner s Manual Make sure that the trunk and passenger compartment is unloaded Clean ...

Page 6: ...and adjust the Dynamic Laser Cruise Control System Tip Click Help Tip Help Click Note Note STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 OBJECTIVE STEP 11 STEP 12 STEP 13 STEP 10 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A You can view this section two ways 1 Click PLAY on this page to view the complete measurement procedure 2 Click on any STE...

Page 7: ...pare a working area of 29 5 ft 9m x 9 8 ft 3m indoors on level ground and in front of a blank wall away from any reflective objects OBJECTIVE STEP 10 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 1 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 8: ...the vehicle To do this hang a sharp pointed plumb bob weight from the center of the back door emblem and front grill emblem then mark these center points on the ground with masking tape as shown Points A and B OBJECTIVE STEP 10 STEP 1 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 2 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toy...

Page 9: ... THE WORK AREA From Point B measure 29 5 ft 9m and mark Point C on the ground with masking tape as shown OBJECTIVE STEP 10 STEP 2 STEP 1 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 3 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 10: ...t A and route the string under the vehicle to Point C Tip Click Help Tip Help Click Note Note OBJECTIVE STEP 10 STEP 2 STEP 1 STEP 3 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 4 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 String 1 may be longer than is needed to make a straight line in this step Make sure ...

Page 11: ...NCE POINT D From Point B measure a distance of 16 4 ft 5m and mark Point D on the ground with masking tape OBJECTIVE STEP 10 STEP 2 STEP 1 STEP 4 STEP 3 STEP 6 STEP 7 STEP 8 STEP 9 STEP 5 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 12: ... AND F Now measure 18 8 inches 478mm on both sides of Point D and mark Points E and F on the ground with masking tape OBJECTIVE STEP 10 STEP 2 STEP 1 STEP 4 STEP 5 STEP 3 STEP 7 STEP 8 STEP 9 STEP 6 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 13: ... on String 2 as precisely as possible 18 8 inches 478mm 26 6 inches 676mm Tip Click Help Tip Help Click Note Note OBJECTIVE STEP 10 STEP 2 STEP 1 STEP 4 STEP 5 STEP 6 STEP 3 STEP 8 STEP 9 STEP 7 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 Use String 2 in Steps 8 10 ...

Page 14: ...NG STRING 2 Hold down one end of String 2 on Point E and draw an arc using the 26 6 inches 676mm mark as shown OBJECTIVE STEP 10 STEP 2 STEP 1 STEP 4 STEP 5 STEP 6 STEP 3 STEP 7 STEP 9 STEP 8 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 15: ... of String 2 on Point F and draw an arc using the 26 6 inches 676mm mark You can see that this arc will intersect the arc you drew in Step 8 OBJECTIVE STEP 10 STEP 2 STEP 1 STEP 4 STEP 5 STEP 6 STEP 3 STEP 8 STEP 7 STEP 9 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 16: ... G The distance between Point D and Point G should be approximately 478mm Verify this measurement by using the 478mm mark that you made on String 2 OBJECTIVE STEP 7 STEP 2 STEP 1 STEP 4 STEP 5 STEP 6 STEP 3 STEP 8 STEP 9 STEP 10 STEP 11 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 17: ...ght of the laser emitter portion of the sensor from the ground to the center of the laser emitter lens as precisely as possible and write it down OBJECTIVE STEP 7 STEP 2 STEP 1 STEP 4 STEP 5 STEP 6 STEP 3 STEP 8 STEP 9 STEP 11 STEP 10 STEP 12 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 18: ...t the height of the SST reflector 0 4 inches 9mm higher than the measurement of the laser sensor emitter height taken in Step 11 OBJECTIVE STEP 7 STEP 2 STEP 1 STEP 4 STEP 5 STEP 6 STEP 3 STEP 8 STEP 9 STEP 12 STEP 11 STEP 10 STEP 13 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 19: ...adjusted the reflector height on the SST place the SST on Point G found in Step 10 and proceed to the LASER BEAM AXIS ADJUSTMENT section OBJECTIVE STEP 7 STEP 2 STEP 1 STEP 4 STEP 5 STEP 6 STEP 3 STEP 8 STEP 9 STEP 13 STEP 11 STEP 12 STEP 10 DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A Toyota Motor Sales U S A Inc 2012 ...

Page 20: ...NSOR ADJUSTMENT DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A EXAMPLE Checking the Laser Beam Signal Click PLAY to check for a laser beam signal between the laser sensor and the reflector SST Toyota Motor Sales U S A Inc 2012 Click all side tabs This is an example of what you will do in Step 12 of the Laser Beam Axis Adjustment Procedure ...

Page 21: ...ER CRUISE DIVERGENCE DATA screen on Techstream The adjustment is completed when UPPER LOWER SIDE and RIGHT LEFT SIDE readings show 0 and the system beeps for 10 seconds UPPER LOWER SIDE and RIGHT LEFT SIDE alternately flash on the screen 15 Select NEXT on Techstream to store the adjustment data in the Laser Radar Cruise ECU and complete the procedure If NEXT is not selected the adjustment data wil...

Page 22: ...irection right or left turn Adjustment Bolts A and B equal amounts the grey bolt on the left acts as a fixed pivot point To adjust the sensor direction up or down turn Adjustment Bolt B as required the grey bolt and Adjustment Bolt A acts as fixed pivot points STEP 12 EXAMPLE ADJUSTMENT PROCEDURE SENSOR ADJUSTMENT DYNAMIC LASER CRUISE CONTROL SYSTEM 2008 2012 SEQUOIA Quick Training Guide QT512A If...

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