I have 2000 Honda HRV GH 3. I scanned my vehicle, It shows ABS System Failure, Battery Voltage Failure. Last year I changed the battery, it's a 45AH battery, A mechanic said to change to a battery with 55Ah to solve this issue, is it possible I need a new battery?
This failure code is stored in most Honda's that we scan. Usually it is code 61-1. It comes from low voltage during cranking. The codes do not erase themselves so all it takes to have the code is one event where the battery was low on charge during cranking.
Erase all trouble codes in the module and then recheck for new codes. If none come back then there is no need for repairs. Any codes that comes back after clear needs to be investigated. If it does not then no action is needed.
Make sure the battery is the correct size for the vehicle - perhaps your mechanic is correct. Then, check the charging system, after that investigate the other faults.