T-SB-0043-23
Service Bulletin Details
Public Details for: T-SB-0043-23
Models from 2022
2022 TOYOTA MIRAI |
Models from 2021
2021 TOYOTA MIRAI |
T-SB-0043-23 July 10, 2023 MIL ON With DTC(s) P1F6C71 and/or P1F6E71 Service Category Engine/Hybrid System Section Engine Control Market USA Applicability YEAR(S) MODEL(S) 2021 - 2022 Mirai ADDITIONAL INFORMATION Introduction Some 2021 – 2022 model year Mirai vehicles may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes (DTCs) present: P1F6C71 – Air Sealing Valve Actuator Stuck P1F6E71 – Air Pressure Regulating Valve Actuator Stuck Follow the Repair Procedure in this bulletin to address this condition. Production Change Information This bulletin applies to vehicles produced BEFORE the Production Change Effective VIN shown below. MODEL PLANT DRIVETRAIN PRODUCTION CHANGE EFFECTIVE VIN Mirai Motomachi 2WD JTDAAAAA#PA007624 Warranty Information OP CODE DESCRIPTION TIME OFP T1 T2 EL2304 Reprogram the EV Control Computer 0.5 89981-#####* 8A 74 *Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being repaired by searching for the parts in the Electronic Parts Catalog using the VIN filter. APPLICABLE WARRANTY This repair is covered under the Toyota Fuel Cell System Warranty. This warranty is in effect for 96 months or 100,000 miles, whichever occurs first, from the vehicle’s in-service date. Warranty application is limited to occurrence of the specified condition described in this bulletin. © 2023 Toyota Motor Sales, USA Page 1 of 5 T-SB-0043-23 July 10, 2023 Page 2 of 5 MIL ON With DTC(s) P1F6C71 and/or P1F6E71 Parts Information PART NUMBER PART NAME QTY Computer, EV Control – 17C10-77030 Regulator Assy, Fuel Cell Air Pressure 1 1A495-77020 Gasket, FC Stack Air, No. 5 1 PREVIOUS NEW 89981-62110 89981-62260 89981-62120 89981-62270 89981-62150 89981-62280 89981-62160 89981-62290 89981-62170 89981-62300 17C10-77030 1A495-77020 NOTE The EV control computer should NOT be replaced as part of the Repair Procedure. Required Tools & Equipment SPECIAL SERVICE TOOLS (SST) PART NUMBER QTY Battery Diagnostic Tool* DCA-8000P_T 1 *Essential SST. NOTE Additional SSTs may be ordered by calling 1-800-933-8335. REQUIRED EQUIPMENT SUPPLIER Techstream ADVI* PART NUMBER QTY TSADVUNIT Techstream 2.0 TS2UNIT ADE 1 Techstream Lite TSLITEPDLR01 Techstream Lite (Green Cable) TSLP2DLR01 *Essential SST. NOTE Only ONE of the Techstream units listed above is required. GTS+ software version 2023.02.001.02 or later is required. Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at 1-800-368-6787. © 2023 Toyota Motor Sales, USA T-SB-0043-23 July 10, 2023 Page 3 of 5 MIL ON With DTC(s) P1F6C71 and/or P1F6E71 Calibration Information CALIBRATION ID MODEL ENGINE CALIBRATION ID # PREVIOUS CID 1 CID 2 CID 1 CID 2 CID 1 Mirai 3KM CID 2 CID 1 CID 2 CID 1 CID 2 © 2023 Toyota Motor Sales, USA 899836211500 899836211400 899836211300 899836211200 899836211100 899836211000 899856202100 899856202000 899836212500 899836212400 899836212300 899836212200 899836212100 899836212000 899856202100 899856202000 899836215500 899836215400 899836215300 899836215200 899836215100 899836215000 899856202100 899856202000 899836216500 899836216400 899836216300 899836216200 899836216100 899836216000 899856202100 899856202000 899836217500 899836217400 899836217300 899836217200 899836217100 899836217000 899856204100 899856204000 NEW 899836211600 / 899856202200 899836212600 / 899856202200 899836215600 / 899856202200 899836216600 / 899856202200 899836217600 / 899856204200 T-SB-0043-23 July 10, 2023 Page 4 of 5 MIL ON With DTC(s) P1F6C71 and/or P1F6E71 Repair Procedure 1. Confirm the condition exists. Does the vehicle exhibit a MIL ON condition with one or both of the following DTCs present? P1F6C71 – Air Sealing Valve Actuator Stuck P1F6E71 – Air Pressure Regulating Valve Actuator Stuck YES — Continue to step 2. NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual. 2. Use Techstream to confirm if the EV control computer calibration has been updated. Is the calibration ID listed in Techstream the latest calibration? YES — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual. NO — Continue to step 3. 3. Determine if air sealing valve requires replacement. Is DTC P1F6C71 present? YES — Continue to step 4. NO — Go to step 6. 4. Remove the air sealing valve. Refer to TIS, applicable model and model year Repair Manual: 2021 – 2022 Mirai: Engine/Hybrid System – Intake/Exhaust – Intake / Exhaust: Air Control Valve: Removal” 5. Install the NEW air sealing valve. Refer to TIS, applicable model and model year Repair Manual: 2021 – 2022 Mirai: Engine/Hybrid System – Intake/Exhaust – Intake / Exhaust: Air Control Valve: Installation” 6. Determine if the air pressure regulating valve requires replacement. Is DTC P1F6E71 present? YES — Continue to step 7. NO — Go to step 9. © 2023 Toyota Motor Sales, USA T-SB-0043-23 July 10, 2023 Page 5 of 5 MIL ON With DTC(s) P1F6C71 and/or P1F6E71 Repair Procedure (continued) 7. Remove the air pressure regulating valve. Refer to TIS, applicable model and model year Repair Manual: 2021 – 2022 Mirai: Engine/Hybrid System – Emission Control – “A25A-FXS (Emission Control): Fuel Vapor Containment Valve: Removal” 8. Install the NEW air pressure regulating valve. Refer to TIS, applicable model and model year Repair Manual: 2021 – 2022 Mirai: Engine/Hybrid System – Emission Control – “A25A-FXS (Emission Control): Fuel Vapor Containment Valve: Installation” 9. Reprogram the EV control computer. NOTE The battery diagnostic tool MUST be used in Power Supply Mode to maintain battery voltage at 13.5V while flash reprogramming the vehicle. For details on how to use the battery diagnostic station, refer to the DCA-8000 Instruction Manual located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics. Follow the procedures outlined in T-SB-0107-20, ECU Flash Reprogramming With Security Signature, and flash the EV control computer with the NEW calibration file update. 10. Clear ANY DTCs and confirm the condition is no longer present. NOTE It may be necessary to turn the ignition switch OFF and wait for 10 minutes or more for ALL DTCs to clear. © 2023 Toyota Motor Sales, USA