HVAC System - Diagnostics
- DTC Troubleshooting
- Climate Control System DTC Troubleshooting: C0 (2024 2025)
- DTC B121A (49) (2024 2025)
- DTC B121A (A and MODE) (2021 2022 2023)
- DTC Troubleshooting: B121B (4A) (2024 2025)
- DTC B121B (B and MODE) (2021 2022 2023)
- DTC Troubleshooting: B1220 (56) (2024 2025)
- DTC B1220 (M and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC Troubleshooting: B1225 (01) (2024 2025)
- DTC B1225 (A and AUTO) (2021 2022 2023)
- DTC Troubleshooting: B1226 (02) (2024 2025)
- DTC B1226 (B and AUTO) (2021 2022 2023)
- DTC Troubleshooting: B1227 (05) (2024 2025)
- DTC B1227 (C and AUTO) (2021 2022 2023)
- DTC Troubleshooting: B1228 (06) (2024 2025)
- DTC B1228 (D and AUTO) (2021 2022 2023)
- DTC Troubleshooting: B1229 (17) (With Automatic Wiper) (2024 2025)
- DTC Troubleshooting: B122F (D0) (2024 2025)
- DTC Troubleshooting: B1230 (17) (With Automatic Wiper) (2024 2025)
- DTC B1231 (09) (2024 2025)
- DTC B1231 (G and AUTO) (2021 2022 2023)
- DTC Troubleshooting: B1232 (0A) (2024 2025)
- DTC B1232 (H and AUTO) (2021 2022 2023)
- DTC Troubleshooting: B1233 (40) (2024 2025)
- DTC B1233 (B and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC Troubleshooting: B1234 (41) (2024 2025)
- DTC B1234 (C and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC Troubleshooting: B1235 (42) (2024 2025)
- DTC B1235 (D and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC B1236 (43) (2024 2025)
- DTC B1236 (E and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC B1237 (44) (2024 2025)
- DTC B1237 (F and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC Troubleshooting: B1238 (45) (2024 2025)
- DTC B1238 (G and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC Troubleshooting: B123F (17) (Without Automatic Wiper) (2024 2025)
- DTC B123F (E and AUTO) (2021 2022 2023)
- DTC Troubleshooting: B1240 (4B) (2024 2025)
- DTC B1240 (C and MODE) (2021 2022 2023)
- DTC Troubleshooting: B1241 (59) (2024 2025)
- Notes
- Overview
- Inspection Outline
- Confirmation Procedure
- Related Information
- HDS Function
- PGND, BLOWER_V, BLOWER_G Circuit Inspection
- BLOWER_CONTROL Circuit Inspection
- BLOWER_MTR Open Wire Inspection
- +B_HTR_MTR Circuit Inspection
- IG2_OPTION Circuit Inspection
- Blower Motor Functional Inspection
- Power Distribution Module Inspection
- Climate Control Unit Inspection
- DTC B1241 (K and MODE) (2021 2022 2023)
- Notes
- Overview
- Inspection Outline
- Confirmation Procedure
- Related Information
- HDS Function
- PGND, BLOWER_V, BLOWER_G Circuit Inspection
- BLOWER_CONTROL Circuit Inspection
- BLOWER_MTR Open Wire Inspection
- +B_HTR_MTR Circuit Inspection
- IG2_OPTION Circuit Inspection
- Blower Motor Functional Inspection
- Power Distribution Module Functional Inspection
- Climate Control Unit Inspection
- DTC B2964
- DTC Troubleshooting: B2967 (20) (2024 2025)
- DTC B2967 (N and AUTO) (2021 2022 2023)
- DTC Troubleshooting: B2968 (21) (2024 2025)
- DTC B2968 (P and AUTO) (2021 2022 2023)
- DTC B2983 (57) (2024 2025)
- DTC B2983 (N and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC Troubleshooting: B2986 (55) (2024 2025)
- DTC B2986 (L and WINDSHIELD DEFROST) (2021 2022 2023)
- DTC B2988 (2021 2022 2023)
- DTC Troubleshooting: B2988 (61) (2024 2025)
- DTC Troubleshooting: U1280 (80) (Climate Control Unit) (2024 2025)
- DTC U1280 (Climate Control Unit) (2021 2022 2023)
- DTC Troubleshooting: U1281 (91) (Climate Control Unit) (2024 2025)
- DTC U1281 (Climate Control Unit) (2021 2022 2023)
- DTC U128D (83) (Climate Control Unit) (2024 2025)
- DTC U128D (Climate Control Unit) (2021 2022 2023)
- DTC Troubleshooting: U1290 (8F) (Climate Control Unit) (2024 2025)
- DTC U1290 (Climate Control Unit) (2021 2022 2023)
- How to Information
- How to Troubleshoot the Climate Control System
- Before Troubleshooting
- How to Read DTCs with the HDS
- How to Use the Self-Diagnostic Function with the HDS
- How to Use the Self-Diagnostic Function without the HDS
- Checking for DTCs
- How to Check for History DTCs
- How to Clear History DTCs
- Displaying Sensor Inputs at the Climate Control Unit
- Checks Before Using the Sensor Input Display Mode
- Run the Sensor Input Display Mode
- How to Troubleshoot the Climate Control System
- DTC Troubleshooting Index