General Check Before Troubleshooting

Before troubleshooting the keyless access system, check the following items and solve any applicable issues.

• Check that the following fuses are OK. Refer to:

  No. A26 - Fuse to Components Index (With Auto Idle Stop System) (2019 2020 2021) .

  B1-3 - Fuse to Components Index (Without Auto Idle Stop System) (2019 2020 2021) .

  B1-5 - Fuse to Components Index (With Auto Idle Stop System) (2019 2020 2021) .

  B1-6 - Fuse to Components Index (Without Auto Idle Stop System) (2019 2020 2021) .

  No. B10 - Fuse to Components Index (With Auto Idle Stop System) (2019 2020 2021) .

  No. C3 - Fuse to Components Index (With Auto Idle Stop System) (2019 2020 2021) .

• Check for poor connection at the keyless access/TPMS control unit.
• Check for DTCs with the HDS; if a DTC is indicated, troubleshoot the DTC first.
• Before testing, troubleshoot the keyless access system first using SELF CHECK, and if any malfunction is found, troubleshoot it first.
• Make sure the keyless remote is not in a purse with coins, wrapped with any metallic material, placed near a mobile phone or computer.
• Make sure the vehicle battery is fully charged.
• Make sure the keyless remote batteries are not low; if they are, replace the battery.
• Make sure a different keyless remote is not being used; only use an Honda-approved keyless remote.
• Make sure the keyless remote is not attached to a key ring or key case; if it is, remove the key from it.
• Make sure aftermarket accessories are not installed; remove any aftermarket accessories.
• Make sure aftermarket accessories are not connected to the S-NET line; disconnect any aftermarket accessories from the S-NET line.
• Make sure there is no electrical interference nearby; avoid areas with electrical interference.