Keyless Access System Status Log
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.
If you suspect there is an immobilizer system problem, check the status log in the HDS.
1. Connect the HDS to the data link connector (DLC)
2. Turn the vehicle to the ON mode.
3. On the HDS screen, at SYSTEM SELECTION MENU, enter ONE-PUSH START, then select KEYLESS ACCESS CONTROL UNIT or BACKUP CONTROL UNIT.
NOTE:
If the HDS does not communicate, check the body control module power, ground, K line, and L-line connectors.
4. At KEYLESS ACCESS CONTROL UNIT, enter KEYLESS ACCESS SYSTEM INFORMATION, then select KEYLESS ACCESS STATUS LOG.
5. At BACKUP CONTROL UNIT, enter SYSTEM INFORMATION, then select STATUS LOG. Check the STATUS LOG count. Troubleshoot the status with the highest count first. If no counts are listed, the immobilizer system is OK. Continue with normal symptom troubleshooting.
Status Log (Keyless Access Control Unit)
| Status Log No. |
Possible cause |
| B-1B-2 |
- PCM was not registered correctly
- Body control module was registered correctly
- Poor connections or loose terminals between body control module and PCM
- Poor connections or loose terminals in the IG1 line
- Low 12 volt battery voltage
- Electrical noise
|
| C-1C-2 |
- Poor connections or loose terminals in the IG1 line
- Body control module was not registered
- Low 12 volt battery voltage
- Electrical noise
|
| D-1D-2D-3 |
- Poor connections or loose terminals between body control module and PCM
- Low 12 volt battery voltage
- Electrical noise
- Blown fuse
|
Status Log (Backup Control Unit)
| Status Log No. |
Possible cause |
| A-1A-2A-3 |
- Keyless remote was not registered correctly
- Engine start/stop switch failure
|
| B-1B-2 |
- PCM was not registered correctly
- Communication error between body control module and PCM
- Low 12 volt battery voltage
- Electrical noise
|
| C-1C-2 |
- Body control module was not registered correctly
- Poor connections or loose terminals in the IG1 line
- Low 12 volt battery voltage
- Electrical noise
|
| Status Log No. |
Possible cause |
| D-1D-2D-3 |
- Poor connections or loose terminals between body control module and PCM
- S-NET line short
- Low 12 volt battery voltage
- Electrical noise
- Blown fuse
|