LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2016 >> MDX Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Security System / Keyless Entry System - Testing & Troubleshooting (Except Hybrid) >> Test >> Keyless Access LF Antenna Function Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Keyless Access LF Antenna Function Test

NOTE:
  • Before testing, check for DTCs. If any DTCs are indicated, troubleshoot the indicated DTCs first.
  • Some models have the rear outer handle touch sensor. Perform the troubleshooting flow where applicable.

1. Connect the HDS to the data link connector (DLC) - Refer to: How to Troubleshoot the Body Electrical (2017 2018 2019 2020), or How to Troubleshoot the Body Electrical (2016), or How to Troubleshoot the Body Electrical (2014 2015)

2. Turn the vehicle to the ON mode.

3. Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS.

4. Select the SELF CHECK and if any malfunction is found, troubleshoot it first.

5. Select the FUNCTIONAL TESTS, and do the antenna driving test by checking the transmitting areas (A) between the LF antenna and the keyless remote.

LF Antenna Location HDS Indication (Functional Tests)
Left-front LF antenna/initiator Driver (Door) Antenna Driving
Right-front LF antenna/initiator Front Passenger (Door) Antenna Driving
Left-rear LF antenna/initiator Driver Side Rear (Door) Antenna Driving
Right-rear LF antenna/initiator Passenger Side Rear (Door) Antenna Driving
NOTE:
  • Functional Tests cannot operate at the same time, check the LF antennas one at a time.
  • Test the transmitting area at about 90 cm (35.4 in) height from the ground.
  • The LED will blink when the keyless remote is within the shaded areas.
GHH326617Courtesy of HONDA, U.S.A., INC.

6. Select the FUNCTIONAL TESTS, and do the antenna driving test by checking the transmitting areas (A) between the LF antenna and the keyless remote (except on the dashboard, in the glove box, door pockets, console box, and other enclosed areas).

LF Antenna Location HDS Indication (Functional Tests)
Front interior LF antenna Front Interior Antenna Driving
Rear interior LF antenna Rear Interior Antenna Driving
NOTE: Functional Tests cannot operate at the same time, check the LF antennas one at a time.
GHH326618Courtesy of HONDA, U.S.A., INC.