Millimeter Wave Radar Unit Aiming

Special Tools Required Radar aimer set 070AJ-SDA0100 Prepare the items shown:

- HDS
- Level (commercially available)

- Tape measure and scale
- String (about 10 m (33 ft) length)
- String with a plumb bob
- Ballpoint pen
- Tape

NOTE: If the millimeter wave radar unit is removed or replaced, or if a millimeter wave radar unit aiming error occurs, re-aim the millimeter wave radar unit. Incomplete aiming, an aiming error, or dust or dirt on the radar unit surface causes the adaptive cruise control (ACC) indicator to come on.

- Millimeter wave radar unit aiming incomplete: DTC 107
- Millimeter wave radar unit aiming error: DTC 63
- Millimeter wave radar unit or emblem surface is contaminated with dust, dirt, ice, or snow: DTC 105

Before Aiming:

- Aiming the millimeter wave radar unit requires the HDS.
- Clean the surface of the millimeter wave radar unit.
- Make sure the vehicle has no aftermarket suspension.
- Make sure all the tyre sizes are correct and that their pressure is correct.
- Make sure the fuel tank is full.
- Make sure the vehicle is not towing, and the front of the vehicle height is normal.
- Remove all baggage from the vehicle except the spare tyre and the tool kit.
- Make sure the steering wheel is directed straight ahead, and do not turn it after setting the vehicle.
- Shift the transmission lever into P or N, and apply the parking brake.
- Make sure the upper grille and the front bumper are installed correctly.
- Park the vehicle on level ground in a wide open space to avoid misadjusting caused by reflecting objects. The space needs to be 10 m (32.8 ft) in front, 4 m (13.1 ft) in width and 1.5 m (4.9 ft) in height.
- If NO TARGET is indicated even when there are no objects 10 m (32.8 ft) in front of the vehicle, check for reflecting objects in front of the vehicle.
- An iron pillar, a shutter, a tool box, a mirror, etc. in front of the vehicle may be detected as a reflector.
- When ‘‘NO TARGET'' is not displayed even after the reflector has been removed from the aiming space (millimeter wave radar detection range), perform aiming after stacking approximately five tyres behind the special tool (radar aimer set). Then ‘‘NO TARGET'' will be displayed comparatively easily.

NOTE: When the millimeter wave radar unit is adjusted on a surface that has more than 1 degree of horizontal slope (drainage slope), the vertical aiming cannot be adjusted correctly. Check the levelness of the surface, and adjust the angle of the millimeter wave radar unit to be parrallel to that of the surface, lay a ruler (at least 12'') or other flat straight object on the surface and put the level on top to confirm the levelness of the surface.

Vertical Aiming NOTE: When the millimeter wave radar unit is adjusted on a surface that has more than 1 degree of horizontal slope (drainage slope), the vertical aiming cannot be adjusted correctly. Check the levelness of the surface, and adjust the angle of the millimeter wave radar unit to be parrallel to that of the surface, lay a ruler (at least 12'') or other flat straight objects on the surface and put the level on top to confirm the levelness of the surface.

1. Remove the upper grill cover.

1. Put the level (A) (commercially available) on the aiming pad (B) of the millimeter wave radar unit.

1. Turn the vertical adjusting bolt (C) on the driver's side with a screwdriver, and adjust the angle of the millimeter wave radar unit so that the air bubble in the level is centered.

Horizontal Aiming NOTE: Confirm that is there enough working space to perform the millimeter wave radar unit aiming through connecting HDS.

1. Move the vehicle to pit or a flat space which is possible to work.

1. Turn the ignition switch OFF.

1. Connect the HDS to the data link connector (A).

1. Turn the ignition switch ON (II).

1. Check for DTCs with the HDS.
   NOTE: If DTC 61 or DTC 62 is indicated, troubleshoot the indicated DTC first.

1. Start the engine.

1. Turn the adaptive cruise control (ACC) switch (A) on.

1. Select ADAPTIVE CRUISE CONTROL (ACC) from the DRIVING SUPPORT menu. Select RADAR AIMING from the ADJUSTMENT menu, the MID will indicate the number ‘‘4'' on its display for 2 seconds then display ‘‘NO TARGET''.

1. Make sure the MID indicates ‘‘NO TARGET'' on its display.
   NOTE: When the radar is aimed correctly the MID indicates ‘‘NO TARGET''. If this is not indicated there is an unwanted radar reflection in front of the vehicle within the range of the radar.

1. Confirm that the following illustration is displayed on HDS. If it is not displayed, go to Step 13 .

1. Confirm it again by changing direction (front/rear) the angle of the car. If illustration is not displayed, go to Step 13 .

1. Set up the radar aimer set (A) at least 5 m from the car, then set up the following items that block the radar behind the radar aimer set. Then repeat Step 10 .
   NOTE: Pile up about five tyres so that height becomes it than 1 m (3.3 ft).

1. Park the vehicle on level ground with at least this much open space around it: 10 m (32.8 ft) in front, 4 m (13.1 ft) in width, and 1.5 m (4.9 ft) in height.

1. Make sure there are no reflecting objects or anything in this range.

1. Check the tyre pressures, and adjust the pressures to the specified value if need.

1. Put a person or an object equivalent to the driver's weight in the driver's seat.

Setting the Distance between the target and the Vehicle NOTE: When marking on the floor, use suitable tape to mark the exact locations.

1. Hang the plumb bob from the center line on the jacking pad (A) under the front of the vehicle (line up the plumb bob with the line on the jacking pad), and mark (B) the spot on the floor where the plumb bob touches the floor.

1. Hang the plumb bob (A) from the center of the rear tow hook (B) on the vehicle centerline and mark (C) the spot on the floor where the plumb bob touches the floor.

1. Tape a string to the floor behind the vehicle aligned with point (B). Strech the string forward to a point 5 m (16.4 ft) in front of the vehicle. Carefully align the string along point (B) and point (A) on the centerline of the vehicle and make a new point (C) 5 m (16.4 ft) in front of the vehicle on the floor that is also on the centerline.

Special Tools Set-up

1. Assemble the radar aimer set components.

1. Adjust the tip (A) of the height rod on the target to the center of the ‘‘H'' emblem (B).

1. Move the radar aimer set (A) to the mark (D) you made on the floor in the step 7, and point the tranceponder (B) to the millimeter wave rader unit.
   NOTE: Hang a plumb bob from the edge of the trget assembly and align it with the mark (D) on the floor are aligned.

1. Confirm the result of the horizontal auto aiming following the onscreen instructions of the HDS.
   NOTE: The result of all auto aiming can be confirmed by the HDS, by the symbols and words displayed on the MID, or by the brake lights illuminating. When the symbols is not in the range 100±2 or an alarm tone sounds by the vehicle when it the aiming point is out of specification, or when the brake lights do not come on, the auto aiming is not completed correctly. If DTC 120, 121,122, 123, or 124 is indicated, the aiming target is not set correctly. Reset the aiming target.

1. If the radar is not aligned in the range where the auto aiming works correctly, turn the horizontal adjusting bolt (A) and adjust the direction of the millimeter wave radar unit until it comes to within 100±1, as confirmed by the HDS, the MID display, or by the lighting of the brake lights.
   NOTE: Do not work in front of the millimeter wave radar unit (in the range of radar irradiation), because it detects your tools and your body, and the aiming can not be completed correctly.

1. After adjustment, confirm the MID display and the lighting of the brake lights, and finalize the horizontal aiming. (End the aiming process on the HDS).
   NOTE: At the time of aiming termination, the implementation result of auto aiming is recorded. When aiming is finalized without the display of the car mark or if the adaptive cruise control (ACC) switch is pressed before the aiming is completed, DTC 107 is displayed to indicate incomplete aiming. If you need to cancel the aiming, turn the ignition switch off.

1. After aiming, clear the DTCs with the HDS.

Example 1: Out of the auto aiming range
Example 2: In the auto aiming range