2005 HAH - IMA, FPC, Hybrid Battery, & Misfire
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2005 HAH - IMA, FPC, Hybrid Battery, & Misfire
Hey guys!
I was hoping someone here might know what could possibly be the issue that could be causing all these codes!
I recently purchased a 2005 HAH with 152,000 miles. The previous owner told me that he replaced the hybrid battery either 1 or 2 years ago. During test drive nothing seemed wrong and guessing he cleared the codes that’s why none were showing.
The next day after I purchased it I was driving it and 8 codes randomly appeared:
(1/8) P0A7F - Hybrid Battery Pack Deterioration
(2/8) P0301 - Cylinder 1 Misfire
(3/8) P0305 - Cylinder 5 Misfire
(4/8) P0300 - Random Misfire
(5/8) P0AC4 - IMA System Malfunction
(6/8) P0627 - Fuel Pump Control (FPC) System Malfunction
(7/8) P0A7F - Hybrid Battery Pack Deterioration
(8/8) P0AC4 - IMA System Malfunction
The vehicle there isn’t any issues with it when I drive it, there isn’t any problem with acceleration like typically with cylinder misfire, it does seem like it’s eating more gas than it should, and on the dash where battery charge is shown it indicates that the battery charge dies pretty rapidly then it recharges pretty quickly as well.
If anyone could please give me any suggestions or advice I’d really appreciate it!!
I was hoping someone here might know what could possibly be the issue that could be causing all these codes!
I recently purchased a 2005 HAH with 152,000 miles. The previous owner told me that he replaced the hybrid battery either 1 or 2 years ago. During test drive nothing seemed wrong and guessing he cleared the codes that’s why none were showing.
The next day after I purchased it I was driving it and 8 codes randomly appeared:
(1/8) P0A7F - Hybrid Battery Pack Deterioration
(2/8) P0301 - Cylinder 1 Misfire
(3/8) P0305 - Cylinder 5 Misfire
(4/8) P0300 - Random Misfire
(5/8) P0AC4 - IMA System Malfunction
(6/8) P0627 - Fuel Pump Control (FPC) System Malfunction
(7/8) P0A7F - Hybrid Battery Pack Deterioration
(8/8) P0AC4 - IMA System Malfunction
The vehicle there isn’t any issues with it when I drive it, there isn’t any problem with acceleration like typically with cylinder misfire, it does seem like it’s eating more gas than it should, and on the dash where battery charge is shown it indicates that the battery charge dies pretty rapidly then it recharges pretty quickly as well.
If anyone could please give me any suggestions or advice I’d really appreciate it!!
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Re: 2005 HAH - IMA, FPC, Hybrid Battery, & Misfire
The P0A7F is High Voltage (HV) Battery Capacity Serious Deterioration. If the usable battery capacity lowers to a specified value (threshold), the battery condition monitor module detects a malfunction and stores a DTC. Usable battery capacity range of the battery module is calculated from the battery capacity (ΔAh) and SOC (state of charge) change width (ΔSOC) of a specified section.
Batteries generally have a limited lifespan, and their capacity and performance will diminish.
If previous owner replaced IMA battery, it likely was a reconditioned replacement or one from a salvage yard. The replacement probably is failing.
P0A7F and P0AC4 together are generally when the IMA battery is needing replacement.
Batteries generally have a limited lifespan, and their capacity and performance will diminish.
If previous owner replaced IMA battery, it likely was a reconditioned replacement or one from a salvage yard. The replacement probably is failing.
P0A7F and P0AC4 together are generally when the IMA battery is needing replacement.
