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Charging System Symptom Troubleshooting Index

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.

NOTE: If no DTCs are indicated when confirming them with the HDS , the alternator is normal because of multistage control one.

Symptom  Diagnostic procedure  Also check for 
Charging system indicator stays on Do the gauge control module self-diagnostic function procedure .  
Over-run alternator decoupler (OAD) pulley is making an abnormal noise Check for a broken over-run alternator decoupler (OAD) pulley.   
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