The Camry 2007 Hybrid - persistent P0A80 code - differential diagnosis?
#1
01-02-2020, 08:11 AM
The Camry 2007 Hybrid - persistent P0A80 code - differential diagnosis?
Hello,
I had my Camry Hybrid cells replaced about 8 months ago. Since then, the P0A80 code returned. The mechanic (who specializes in Hybrid battery replacement) told me holding off on responding to a P0A80 code by clearing it from the computer and to perform the following:
1. Check and clean the m**** airflow sensor (MAF Sensor)
2. Check and clean any accumulation of oil in the throttle body.
3. Also something about checking oil levels at 1/3 or 3/4 the recommended capacity I forget and haven't done that.
Is anyone familiar with this sort of thing?
The code returns after 2 to 4 days from clearing it. His idea is that there is a dirty, malfunctioned sensor
I had my Camry Hybrid cells replaced about 8 months ago. Since then, the P0A80 code returned. The mechanic (who specializes in Hybrid battery replacement) told me holding off on responding to a P0A80 code by clearing it from the computer and to perform the following:
1. Check and clean the m**** airflow sensor (MAF Sensor)
2. Check and clean any accumulation of oil in the throttle body.
3. Also something about checking oil levels at 1/3 or 3/4 the recommended capacity I forget and haven't done that.
Is anyone familiar with this sort of thing?
The code returns after 2 to 4 days from clearing it. His idea is that there is a dirty, malfunctioned sensor
#2
01-02-2020, 05:44 PM
Re: The Camry 2007 Hybrid - persistent P0A80 code - differential diagnosis?
The mechanic, "who specializes in hybrid battery replacement" is almost certainly not a skilled "specialist" but a hack who is trying to exploit a market by filling a niche that others are hesitant in which to jump.
Recommendations 1-3 have ZERO bearing on a P0A80 UNLESS the battery is already very weak and at the threshold of failure (which is basically as good as failed). He is trying to avoid replacing anything under warranty if you have a warranty and if he has liability for it. If that's not his motivation, he's just a hack who doesn't know what he's doing making nonsensical recommendations.
Items 1 & 2 are actually very important IF your car is experiencing P319X codes due to low power or "fail to start".
Item #3 is completely baffling. Your oil should be changed according to Toyota's recommended interval, and it should be kept between the upper and lower marks in between changes. Period.
He likely does no actual testing and doesn't know that just measuring module voltages tells you almost nothing about the health of the module. He's probably learned what little he knows on YouTube and thinks you can just measure voltages and swap modules. He doesn't know that most Camrys, when they fail, completely trash their batteries and need 20+ modules replaced due to permanent severe loss of capacity that can't be fixed. 20+ is a good DIY repair where you don't have a lot of reliability expectations. For a truly durable repair, you typically need to replace 29-32 of the 34. Additionally, he (or whoever) may have replaced your modules with modules from generation 3 hybrids... which use them more aggressively and typically destroy them.
There is ONE reason for a SOLO P0A80 - the hybrid battery has failed.
If there is a battery sensor issue, you would almost certainly have a P3011 through P3027 indicating a weak block.
A weak 12V can cause hybrid battery codes, but it almost certainly produces MULTIPLE other codes across other systems.
There are multiple apps you can download coupled with a bluetooth (android) or wifi (apple) adapter that will allow you to observe the 17 block voltages of the battery and give CONCLUSIVE and near absolute confirmation of a failed hybrid battery.
Good luck.
Recommendations 1-3 have ZERO bearing on a P0A80 UNLESS the battery is already very weak and at the threshold of failure (which is basically as good as failed). He is trying to avoid replacing anything under warranty if you have a warranty and if he has liability for it. If that's not his motivation, he's just a hack who doesn't know what he's doing making nonsensical recommendations.
Items 1 & 2 are actually very important IF your car is experiencing P319X codes due to low power or "fail to start".
Item #3 is completely baffling. Your oil should be changed according to Toyota's recommended interval, and it should be kept between the upper and lower marks in between changes. Period.
He likely does no actual testing and doesn't know that just measuring module voltages tells you almost nothing about the health of the module. He's probably learned what little he knows on YouTube and thinks you can just measure voltages and swap modules. He doesn't know that most Camrys, when they fail, completely trash their batteries and need 20+ modules replaced due to permanent severe loss of capacity that can't be fixed. 20+ is a good DIY repair where you don't have a lot of reliability expectations. For a truly durable repair, you typically need to replace 29-32 of the 34. Additionally, he (or whoever) may have replaced your modules with modules from generation 3 hybrids... which use them more aggressively and typically destroy them.
There is ONE reason for a SOLO P0A80 - the hybrid battery has failed.
If there is a battery sensor issue, you would almost certainly have a P3011 through P3027 indicating a weak block.
A weak 12V can cause hybrid battery codes, but it almost certainly produces MULTIPLE other codes across other systems.
There are multiple apps you can download coupled with a bluetooth (android) or wifi (apple) adapter that will allow you to observe the 17 block voltages of the battery and give CONCLUSIVE and near absolute confirmation of a failed hybrid battery.
Good luck.
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