NHTSA ID Number: 11012762
Manufacturer Communication Number: T-SB-0010-24 Rev1
TSB/Document Date: 2025-01-09
Summary
Some 2021 – 2022 model year Avalon, 2018 – 2024 Camry, 2019 – 2025 model year Corolla, 2022 – 2025 model year Corolla Cross, and 2019 – 2025 model year RAV4 vehicles with A25A-FKS and M20A-FKS engines may have a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) upon cold soak start up with engine coolant temperatures between 14°F – 41°F: •P030027 – Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold •P030000 – Random/Multiple Cylinder Misfire Detected •P030100 – Cylinder 1 Misfire Detected •P030200 – Cylinder 2 Misfire Detected •P030300 – Cylinder 3 Misfire Detected •P030400 – Cylinder 4 Misfire Detected
Repair Procedure (continued)
5. Confirm the resistance on the direct and port injectors are within specifications.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Avalon:
Engine / Hybrid System – A25A-FKS (Fuel) –
Fuel Injector (for Direct Injection) – Inspection
2021 – 2022 Avalon:
Engine / Hybrid System – A25A-FKS (Fuel) –
Fuel Injector (for Port Injection) – Inspection
2018 – 2024 Camry:
Engine / Hybrid System – A25A-FKS (Fuel) –
Fuel Injector (for Direct Injection) – Inspection
2018 – 2024 Camry:
Engine / Hybrid System – A25A-FKS (Fuel) –
Fuel Injector (for Port Injection) – Inspection
2019 – 2025 Corolla:
Engine / Hybrid System – M20A-FKS (Fuel) –
Fuel Injector (for Direct Injection) – Inspection
2019 – 2025 Corolla:
Engine / Hybrid System – M20A-FKS (Fuel) –
Fuel Injector (for Port Injection) – Inspection
2022 – 2025 Corolla Cross:
Engine / Hybrid System – M20A-FKS (Fuel) –
Fuel Injector (for Direct Injection) – Inspection
2022 – 2025 Corolla Cross:
Engine / Hybrid System – M20A-FKS (Fuel) –
Fuel Injector (for Port Injection) – Inspection
2019 – 2025 RAV4:
Engine / Hybrid System – A25A-FKS (Fuel) –
Fuel Injector (for Direct Injection) – Inspection
2019 – 2025 RAV4:
Engine / Hybrid System – A25A-FKS (Fuel) –
Fuel Injector (for Port Injection) – Inspection
Are the resistance values for the direct and port injectors within specifications?
YES — Continue to step 6.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
© 2024 Toyota
Motor Sales, USA
Page 7 of 13
T-SB-0010-24
Rev1
February 21, 2024
Page 8 of 13
MIL ON With Misfire DTC(s) in Cold Temperatures
Repair Procedure (continued)
6. Inspect the fuel system.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Avalon:
Engine / Hybrid System – A25A-FKS (Fuel) – Fuel System – On-Vehicle Inspection
2018 – 2024 Camry:
Engine / Hybrid System – A25A-FKS (Fuel) – Fuel System – On-Vehicle Inspection
2019 – 2022 / 2023 – 2025 Corolla:
Engine / Hybrid System – M20A-FKS (Fuel) – Fuel System – On-Vehicle Inspection
2022 / 2023 – 2025 Corolla Cross:
Engine / Hybrid
System – M20A-FKS (Fuel) – Fuel System – On-Vehicle Inspection
2019 – 2025 RAV4:
Engine / Hybrid System – A25A-FKS (Fuel) – Fuel System – On-Vehicle Inspection
Is the fuel system within specification?
YES — Continue to step 7.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
7. Follow the applicable Repair Manuals to replace ALL the exhaust side hydraulic lash adjusters
with the applicable service part number listed on page 3.
A. Remove the exhaust side hydraulic lash adjusters.
(1) Remove the camshaft.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Avalon:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) – Camshaft – Removal
2018 / 2019 – 2020 / 2021 – 2024 Camry:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) – Camshaft – Removal
2019 / 2020 – 2022 / 2023 – 2025 Corolla:
Engine / Hybrid System – M20A-FKS (Engine Mechanical) – Camshaft – Removal
2022 / 2023 / 2024 – 2025 Corolla Cross:
Engine / Hybrid System – M20A-FKS (Engine Mechanical) – Camshaft – Removal
2019 / 2020 / 2021 – 2025 RAV4:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) – Camshaft – Removal
© 2024 Toyota
Motor Sales, USA
T-SB-0010-24
Rev1
February 21, 2024
MIL ON With Misfire DTC(s) in Cold Temperatures
Repair Procedure (continued)
(2) Remove the hydraulic lash adjusters.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Avalon:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Engine Unit – Disassembly
NOTE
Perform ONLY steps 45 and 46.
2018 – 2019 / 2020 – 2024 Camry:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Engine Unit – Disassembly
NOTE
Perform ONLY steps 45 and 46.
2019 – 2023 (06/2018 – 03/2023) Corolla:
Engine / Hybrid
System – M20A-FKS (Engine Mechanical) –
Engine Unit – Disassembly
NOTE
Perform ONLY steps 41 and 42.
2023 – 2025 (03/2023 – 09/2024) Corolla:
Engine / Hybrid System – M20A-FKS (Engine Mechanical) –
Engine Unit – Disassembly
NOTE
Perform ONLY steps 41 and 42.
2022 – 2023 / 2024 – 2025 Corolla Cross:
Engine / Hybrid System – M20A-FKS (Engine Mechanical) –
Engine Unit – Disassembly
NOTE
Perform ONLY steps 45 and 46.
© 2024 Toyota
Motor Sales, USA
Page 9 of 13
T-SB-0010-24
Rev1
February 21, 2024
MIL ON With Misfire DTC(s) in Cold Temperatures
Repair Procedure (continued)
2020 – 2024 (06/2020 – ) RAV4:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Engine Unit – Disassembly
NOTE
Perform ONLY steps 47 and 48.
2025 RAV4:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Engine Unit – Disassembly
NOTE
Perform ONLY steps 47 and 48.
B. Install the NEW exhaust side hydraulic lash adjusters.
(1) Install the NEW exhaust side hydraulic lash adjusters.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Avalon:
Engine / Hybrid
System – A25A-FKS (Engine Mechanical) –
Engine Unit – Reassembly
NOTE
Perform ONLY steps 26 and 27.
2018 – 2019 Camry:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Engine Unit – Reassembly
NOTE
Perform ONLY steps 26 and 27.
2020 / 2021 – 2024 Camry:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Engine Unit – Reassembly
NOTE
Perform ONLY steps 27 and 28.
© 2024 Toyota
Motor Sales, USA
Page 10 of 13
T-SB-0010-24
Rev1
February 21, 2024
MIL ON With Misfire DTC(s) in Cold Temperatures
Repair Procedure (continued)
2019 – 2023 (06/2018 – 03/2023) Corolla:
Engine / Hybrid System – M20A-FKS (Engine Mechanical) –
Engine Unit – Reassembly
NOTE
Perform ONLY steps 21 and 22.
2023 – 2025 (03/2023 – 09/2024) Corolla:
Engine / Hybrid
System – M20A-FKS (Engine Mechanical) –
Engine Unit – Reassembly
NOTE
Perform ONLY steps 22 and 23.
2022 – 2023 / 2024 – 2025 Corolla Cross:
Engine / Hybrid System – M20A-FKS (Engine Mechanical) –
Engine Unit – Reassembly
NOTE
Perform ONLY steps 20 and 21.
2019 – 2020 / 2021 – 2024 / 2025 RAV4:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Engine Unit – Reassembly
NOTE
Perform ONLY steps 26 and 27.
© 2024 Toyota Motor Sales, USA
Page 11 of 13
T-SB-0010-24
Rev1
February 21, 2024
Page 12 of 13
MIL ON With Misfire DTC(s) in Cold Temperatures
Repair Procedure (continued)
(2) Reinstall the camshaft.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Avalon:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Camshaft – Installation
2018 – 2024 Camry:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Camshaft – Installation
2019 – 2025 Corolla:
Engine / Hybrid System – M20A-FKS (Engine Mechanical) –
Camshaft – Installation
2022 – 2023 / 2024 – 2025 Corolla Cross:
Engine / Hybrid System – M20A-FKS (Engine Mechanical) –
Camshaft – Installation
2019 – 2020 / 2021 – 2025 RAV4:
Engine / Hybrid System – A25A-FKS (Engine Mechanical) –
Camshaft – Installation
8. Using GTS+, clear ANY DTCs and then at coolant temperatures of 14°F – 41°F, confirm the
condition is no longer present.
Refer to TIS, applicable model and model year Repair Manual:
NOTE
Perform ONLY the Confirmation Driving Pattern steps.
2021 – 2022 Avalon:
Engine / Hybrid System – A25A-FKS (Engine Control) – SFI System –
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
© 2024 Toyota
Motor Sales, USA
T-SB-0010-24
Rev1
February 21, 2024
Page 13 of 13
MIL ON With Misfire DTC(s) in Cold Temperatures
Repair Procedure (continued)
2018 Camry:
Engine / Hybrid System – A25A-FKS (Engine Control) – SFI System –
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
2019 – 2020 (08/2018 – 03/2020) Camry:
Engine / Hybrid System – A25A-FKS (Engine Control) – SFI System –
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
2020 – 2024 (03/2020 – ) Camry:
Engine / Hybrid System – A25A-FKS (Engine Control) – SFI System –
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
2019 – 2020 / 2020 – 2021 / 2022 Corolla:
Engine / Hybrid System – M20A-FKS (Engine Control) – SFI System:–
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
2023 (11/2022 – 03/2023) Corolla:
Engine / Hybrid
System – M20A-FKS (Engine Control) – SFI System:–
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
2023 – 2025 (03/2023 – 09/2024) Corolla:
Engine / Hybrid System – M20A-FKS (Engine Control) – SFI System:–
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
2022 – 2023 Corolla Cross:
Engine / Hybrid System – M20A-FKS (Engine Control) – SFI System – (for K120)
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
2024 – 2025 Corolla Cross:
Engine / Hybrid System – M20A-FKS (Engine Control) – SFI System – (for K121)
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
2019 – 2020 / 2021 – 2025 RAV4:
Engine / Hybrid System – A25A-FKS (Engine Control) – SFI System –
P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected
© 2024 Toyota Motor Sales, USA
- 5 year/150, 000 mile . Silicate-free, long-life, phosphate...
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- 5 year/150, 000 mile . Silicate-free, long-life, phosphate...
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TSB/Document ID: T-SB-0010-24 Rev1
Replacement Service Bulletin Number:
MFR Communication Date: 2024-12-17
MFR Internal Campaign ID/Software Version: T-SB-0010-24 Rev1
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: STRUCTURE:BODY
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