Horizontal Aiming

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

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
2. Make sure there are no reflecting objects or anything in this range.
3. Check the tire pressures, and adjust the pressures to the specified value if need.
4. 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 

   Horizontal Aiming 

   NOTE: When marking on the floor, use suitable tape to mark the exact locations.
5. Adjust the tip of the height rod (B) on the target to the center of the "A" emblem (A).
   Fig 2: Adjusting Tip Of Height Rod On Target To Center Of "A" Emblem

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6. Place the centering stand under the rear tow hook, then mark the floor at the centerline of the tool.
   Fig 3: Placing Centering Stand Under Rear Tow Hook

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7. At the front of the vehicle, slide the gas strut holder and the cord through the slot in the centering stand, then slide the strut to the rear of the vehicle.
   Fig 4: Sliding Gas Strut Holder And Cord Through Slot In Centering Stand

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8. Position the gas strut holder between the rear tow hook and the mark on the floor.
   Fig 5: Positioning Gas Strut Holder Between Rear Tow Hook And Mark On Floor

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9. Place the centering stand under the hole in the front lift pad.
   Fig 6: Placing Centering Stand Under Hole In Front Lift Pad

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10. With the target and the height rod aligned with the cord, move the target out in front of the vehicle until the cord is fully extended (16.5 ft, 5 m). Position the cord at the centerline of the centering stand.
    Fig 7: Positioning Cord At Centerline Of Centering Stand

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11. Contact the HDS to the data link connector (A).
    Fig 8: Locating Data Link Connector

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12. Turn the ignition switch ON (II).
13. Check for DTCs with the HDS.
    NOTE: If DTC 61 or DTC 62 is indicated, troubleshoot the indicated DTC first.
14. Start the engine.
15. Turn the ACC switch (A) ON.
    Fig 9: Locating ACC Switch

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16. Select ADAPTIVE CRUISE CONTROL (ACC) from DRIVING SUPPORT menu. Select RADAR AIMING from ADJUSTMENT menu, the MID will indicate the number "4" on its display for 2 seconds then display "NO TARGET".
    Fig 10: MID Display - Number 4

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17. 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 in the range of the radar.
    Fig 11: MID Display - NO TARGET

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18. 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 figure and words displayed on the MID, or by the brake lights illuminating. When the figure is not in the range 100 ± 2 or a tone is sounded by the vehicle when 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.
    Fig 12: MID Display - RADAR OK

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19. 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 brake lights illuminating.
    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 cannot be completed correctly.
    Fig 13: Identifying Horizontal Adjusting Bolt

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    Example 1: Out of the auto aiming range 

    The MID display "106" means the radar aim is 0.6 degrees out of the range where auto aiming can work.

    Fig 14: MID Display - RADAR (106)

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    Example 2: In the auto aiming range 

    The MID display "100" means auto aiming can work.

    Fig 15: MID Display - RADAR OK (100)

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20. After adjustment, confirm the MID display and the brake lights illuminating, and finalize the horizontal aiming. (End the aiming process on the HDS).
    NOTE:

    • If the radar aim is within specification, the MID displays "RADAR OK 100".
    • If the radar aiming is incomplete (for example, the ACC switch was pressed before the aiming was completed) the MID displays the out-of-range value (example, "106").
    • If you need to cancel the aiming, turn the ignition switch off.
21. After aiming, clear the DTCs with the HDS.

DTCs (if the aiming is incomplete)