General Check Before Troubleshooting
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2025 Honda Odyssey, 2024 Honda Odyssey, 2023 Honda Odyssey, 2022 Honda Odyssey, and 2021 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
Before troubleshooting the keyless access system, check the following items and solve any applicable issues.
- Before starting the troubleshooting procedure, make sure that keyless access system is not disabled by the customization.
- Check the No. Aa (150 A) and No. Ad (70 A) fuses in the 12 volt battery terminal fuse box.
- Check the No. B18 (10 A) fuse in the under-hood fuse/relay box.
- Check the No. C16 (10 A) fuse in the under-dash fuse/relay box.
- Check the No. D1-4 (50 A), No. D2 (30 A), and No. D4 (30 A) fuses in the fuse holder.
- Check for poor connection at the body control module.
- 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 12 volt battery is fully charged.
- Make sure the keyless remote batteries are not low; if they are, replace keyless remote battery.
- Make sure a different keyless remote is not being used; only use a 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 or IGN TRX line; disconnect any aftermarket accessories from the S-NET or IGN TRX line.
- Make sure there is no electrical interference nearby; avoid areas with electrical or radio interference.