Hello Has anyone seen this issue? Looks like the 12volt battery which reads 14.88 is ok and the car starts and runs ok. The check engine light and the triangle exclamation light is on. Using a ODB2 code scan tool module from Harbor Freight, I hooked up the code scan tool and typed in the 2009 Camry VIN number and downloaded the profile to scan this model vehicle. Then it dumped out 2 error codes below. It is the Zurich ZR-BT1 OBD2 Bluetooth dongle code reader [URL unfurl="true"]https://www.harborfreight.com/autom...-obd2-bluetooth-dongle-code-reader-59091.html[/URL] The scan tool error codes are: Stored/Confirmed POAFA - Hybrid/EV Battery System voltage low Pending POAFA - Hybrid/EV Battery System voltage low Google AI Overview: AI Overview Learn more The P0AFA code indicates a problem with the hybrid/EV battery system voltage being lower than expected, according to KBB and Snap-On. This code is specific to vehicles powered partially or fully by electricity, meaning it's not just a standard OBD-II code for all cars. It signifies that the powertrain control module (PCM) or engine control module (ECM) has detected a problem with the battery pack voltage. Here's a more detailed explanation: Battery Pack Voltage: Hybrid and EV vehicles utilize a battery pack composed of individual battery cells, which can number in the hundreds. The vehicle's hybrid PCM monitors the total voltage output from this battery pack to ensure it's functioning correctly. Low Voltage: The P0AFA code is triggered when the hybrid PCM detects that the battery pack's voltage is lower than expected, or when there's an issue with the signal level related to the voltage. Consequences: This low voltage can prevent the vehicle from entering "Ready Mode" and can keep the high-voltage system inactive, potentially preventing the vehicle from starting or operating correctly. Troubleshooting: In some cases, PriusChat provides steps to diagnose and fix the P0AFA code, including checking the battery cells and connectors. Related Codes: The P0AF8 code is also related to this issue, and Kelley Blue Book provides more information on it. This video shows how to diagnose and fix the P0AFA code in a Chevy Volt. However since this code points to a bad battery and in the video below it is the 12v battery in the Chevy Volt which makes sense because it has starting problems. In my case the 12v battery tests good so it looks like a bad 288 volt Toyota hybrid battery which is covered under the extended warranty. We will see. [URL unfurl="true"]https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwj4uZXDqKqNAxX0FmIAHWysLKMQma4LegQIJxAC&url=https://www.youtube.com/watch?v=7ICrpDJXRws&t=53&usg=AOvVaw1V2_x-HG2thSA5A2ZGn9Sd&opi=89978449[/URL] Pic 1 - 2009 Camry Hybrid Dash Warnings Pic 2 - Harbor Freight Scan Tool Pic 3 - Scan Tool 12v Battery Test shows Good Pic 4 - Scan Tool Hybrid Battery Error Code
