2021-2022 Toyota MIL ON with P043F00 and Other DTCs
Toyota has issued a Technical Service Bulletin (TSB) for 2021-2022 Camry, RAV4, Highlander, and Avalon models equipped with A25A-FKS or A25A-FXS engines. Owners may experience a 'MIL ON' condition, commonly known as a Check Engine Light, accompanied by diagnostic trouble codes such as P043F00.
Ahmet Topcu2021 Toyota Camry
Also applies to
- Toyota Avalon
- 2021–2022
- Toyota Camry
- 2022
- Toyota Highlander
- 2021–2022
- Toyota RAV4
- 2021–2022
Toyota has released a Technical Service Bulletin (TSB) concerning certain 2021-2022 Toyota vehicles. This bulletin addresses a condition where the Malfunction Indicator Lamp (MIL), commonly known as the Check Engine Light, illuminates on the dashboard.
The TSB specifically applies to models equipped with either the A25A-FKS or A25A-FXS engines. If you own one of these vehicles and experience a 'MIL ON' condition, it's important to have it diagnosed by a qualified technician.
Symptoms
The primary symptom owners will notice is the illumination of the Malfunction Indicator Lamp (MIL) on the instrument cluster. This is often referred to as the Check Engine Light. When this light comes on, it indicates that the vehicle's onboard diagnostic system has detected a fault.
Fault Codes / DTCs
When the 'MIL ON' condition occurs, technicians may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the vehicle's system:
| Code | Description |
|---|---|
| P043F00 | Evaporative Emission System Leak Detection Pump Sense Circuit Low Range/Performance |
| P043E00 | Evaporative Emission System Leak Detection Pump Sense Circuit High Range/Performance |
| P24007E | Evaporative Emission System Leak Detection Pump Control Circuit/Open |
| P24007F | Evaporative Emission System Leak Detection Pump Control Circuit High |
| P24187E | Evaporative Emission System Leak Detection Pump Control Circuit Low |
These codes specifically point to potential issues within the evaporative emission system, particularly related to the leak detection pump. If your Toyota Camry MIL ON P043F00 appears, these are the codes a technician will investigate.
Affected Engines
The TSB applies to vehicles fitted with specific engine types. These include the A25A-FKS engine and the A25A-FXS engine. These engines are found in various Toyota models, including the 2021-2022 Toyota Camry, RAV4, Highlander, and Avalon.
What to Do
If your 2021-2022 Toyota experiences a 'MIL ON' condition with any of the listed DTCs, such as the Toyota Camry MIL ON P043F00, it is recommended to schedule an appointment with your authorized Toyota dealership. They have access to the latest diagnostic tools and technical information to accurately diagnose and address the underlying cause of these fault codes.
This TSB provides guidance to technicians on how to properly identify and repair the issue. Since this is a manufacturer communication, the repair may be covered under warranty, depending on your vehicle's age and mileage.
Source: NHTSA ID: 10224174
Frequently Asked Questions
- What does 'MIL ON' mean on my Toyota?
- MIL ON stands for Malfunction Indicator Lamp On, which is commonly known as the Check Engine Light. When this light illuminates, it indicates that your vehicle's engine computer has detected a problem.
- What should I do if my 2021-2022 Toyota shows a P043F00 code?
- If your 2021-2022 Toyota displays a P043F00 code or any other related DTCs mentioned in the TSB, you should contact your Toyota dealership. A qualified technician can diagnose the exact cause and perform the necessary repairs according to the manufacturer's guidelines.
- Are the repairs for the 'MIL ON' condition with DTC P043F00 covered under warranty?
- Repairs related to Technical Service Bulletins (TSBs) may be covered under your vehicle's factory warranty, depending on the specific terms, age, and mileage of your 2021-2022 Toyota. It's best to consult with your Toyota dealership to confirm warranty coverage for this issue.
- Which Toyota models and engines are affected by the 'MIL ON' TSB?
- This TSB primarily affects 2021-2022 Toyota Camry, RAV4, Highlander, and Avalon models equipped with either the A25A-FKS or A25A-FXS engines. These vehicles may experience a 'MIL ON' condition with specific diagnostic trouble codes.
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