2021-2022 Toyota MIL ON with DTCs P01201C, P210015

Toyota Technical Service Bulletin T-SB-0005-24 Rev2, issued on February 7, 2024, addresses a condition where certain 2021-2022 Toyota Avalon, Camry, and RAV4 vehicles may experience the Malfunction Indicator Lamp (MIL) illuminating and reduced engine power. This issue, often occurring in freezing temperatures, is typically accompanied by specific Diagnostic Trouble Codes (DTCs) related to the throttle body. The bulletin provides a repair procedure involving the replacement of both the Engine Control Module (ECM) and the fuel pump assembly to resolve these Toyota MIL ON DTCs.

Symptoms

Owners of affected 2021-2022 Toyota Avalon, Camry, and RAV4 vehicles may observe the following symptoms, particularly in freezing temperatures:

• The Malfunction Indicator Lamp (MIL) is illuminated on the dashboard.
• Reduced engine power, impacting vehicle performance.

Fault Codes / DTCs

When diagnosing the Toyota MIL ON DTCs issue, technicians may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the vehicle's Engine Control Module (ECM):

Code	Description
P01201C	Throttle / Pedal Position Sensor / Switch “A” Circuit Voltage Out of Range
P210015	Throttle Actuator “A” Control Motor Circuit Short to Battery or Open
P210019	Throttle Actuator "A" Control Motor Circuit Current Above Threshold
P211172	Throttle Actuator “A” Control System Actuator Stuck Open

Diagnosis / Trigger Conditions

The condition is primarily triggered in freezing temperatures and involves the A25A-FKS engine. The presence of any of the listed throttle body DTCs, combined with MIL illumination and/or reduced engine power, confirms the applicability of this bulletin. If these specific DTCs are not present, further diagnosis using the applicable Repair Manual is necessary.

Important Warnings

NOTE: This ECU's software is calibrated to a specific fuel pump output. For this reason, BOTH the ECU and fuel pump MUST be replaced as part of this repair to ensure proper functionality and prevent recurrence of the issue.

Repair Procedure Summary

The repair involves a two-part replacement process for the affected components. First, the fuel pump assembly is removed and replaced. This step requires referencing the specific model and model year Repair Manual for detailed instructions. Second, the Engine Control Module (ECM), also referred to as the Powertrain Control Module (PCM), is removed and replaced, again following the appropriate Repair Manual. After both components are replaced, any stored DTCs must be cleared using the GTS+ diagnostic software, and the vehicle should be test-driven to confirm the repair is successful and the Toyota MIL ON DTCs condition is no longer present.

Required Tools or Parts

Dealers will require specific tools and updated software to perform this repair:

• Diagnostic Tools: One of the following Techstream units:
  • Techstream ADVi (Part Number: TSADVUNIT)
  • Techstream 2.0 (Part Number: TS2UNIT)
  • Techstream Lite (Part Number: TSLITEPDLR01)
  • Techstream Lite (Green Cable) (Part Number: TSLP2DLR01)
• Software: GTS+ software version 2025.01.005.02 or later.

Specific part numbers for the new Engine Control Module (ECM/PCM) and Fuel Suction Tube Assembly with Pump & Gage are listed in the bulletin. Technicians must use the Electronic Parts Catalog with the VIN filter to ensure the correct 10-digit part numbers are ordered for the vehicle being repaired. Additional parts include a Rear Seat Cushion Lock Hook and Fuel Suction Tube Set Gasket.

Owner Action

If your 2021-2022 Toyota Avalon, Camry, or RAV4 exhibits a MIL ON condition or reduced engine power, especially in freezing temperatures, it is recommended to visit an authorized Toyota dealer. This repair is covered under the Toyota Federal Emission Warranty for 96 months or 80,000 miles, whichever occurs first, from the vehicle's in-service date. The warranty application is limited to the specific condition described in this bulletin, addressing the Toyota MIL ON DTCs.

---

NHTSA ID: 11019330