Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA2023MDX BASEREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM DIAGNOSTICS - TROUBLESHOOTING
2023 Acura MDX Base
Engine Control System Diagnostics - Troubleshooting
2023 Acura MDX BaseSECTION Engine Control System Diagnostics - Troubleshooting
- Troubleshooting
- DTC Troubleshooting: U0101 (PGM - FI System (3.5L Engine)) (2022 2023 2024)
- DTC Troubleshooting: U0101 (PGM - FI System (3.5L Engine)) (2025)
- DTC Troubleshooting: U0103 (PGM - FI System (3.0L Engine)) (2022 2023 2024)
- DTC Troubleshooting: U0103 (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U0103 (PGM - FI System (3.5L Engine)) (2022 2023 2024)
- DTC Troubleshooting: U0103 (PGM - FI System (3.5L Engine)) (2025)
- DTC Troubleshooting: U0104 (PGM - FI System (3.0L Engine)) (2022 2023 2024)
- DTC Troubleshooting: U0104 (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U0104 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U0114 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0114 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U0122 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0122 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U0128 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0128 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U0129 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0129 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U0131 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0131 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U0141 (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U0141 (PGM - FI System (3.5L Engine)) (2025)
- DTC Troubleshooting: U0146 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0146 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U0151 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0151 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U0155 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0155 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U01B0 (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U01B0 (PGM - FI System (3.5L Engine)) (2025)
- DTC Troubleshooting: U0298 (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U0298 (PGM - FI System (3.5L Engine)) (2025)
- DTC Troubleshooting: U0301 (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U0301 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U1101 (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U129E (PGM - FI System (3.0L Engine))
- DTC Troubleshooting: U129E (PGM - FI System (3.5L Engine))
- DTC Troubleshooting: U187F (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U3500 (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U3500 (PGM - FI System (3.5L Engine)) (2025)
- DTC Troubleshooting: U3501 (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U3501 (PGM - FI System (3.5L Engine)) (2025)
- DTC Troubleshooting: U3502 (PGM - FI System (3.0L Engine)) (2025)
- DTC Troubleshooting: U3502 (PGM - FI System (3.5L Engine)) (2025)
- How to Information
- How to Troubleshoot the Fuel and Emissions Systems(3.0L Engine)
- Before Troubleshooting
- System Indicator
- How to Read DTCs with the HDS
- If the MIL did not stay on
- If you cannot duplicate the DTC
- On-Board Snapshot
- HDS Clear Command
- Scan Tool Clear Command
- How to End a Troubleshooting Session (required after any troubleshooting)
- How to Troubleshoot Circuits at the PCM Connectors
- OBD Status
- How to Troubleshoot the Fuel and Emissions Systems(3.5L Engine)
- Before Troubleshooting
- System Indicator
- How to Read DTCs with the HDS
- If the MIL did not stay on
- If you cannot duplicate the DTC
- On-Board Snapshot
- HDS Clear Command
- Scan Tool Clear Command
- How to End a Troubleshooting Session (required after any troubleshooting)
- How to Troubleshoot Circuits at the PCM Connectors
- OBD Status
- How to Troubleshoot the Fuel and Emissions Systems(3.0L Engine)
- DTC Troubleshooting Index
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.