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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSACURA2023TLX BASEREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - DTC DIAGNOSTICS (2 OF 6)
2023 Acura TLX Base
Engine Control System - DTC Diagnostics (2 Of 6)
2023 Acura TLX BaseSECTION Engine Control System - DTC Diagnostics (2 Of 6)
- DTC Troubleshooting
- DTC Troubleshooting: P0118 (3.0L Engine)
- DTC Troubleshooting: P011A (2.0L Engine)
- DTC Troubleshooting: P011A (3.0L Engine)
- DTC Troubleshooting: P011B (3.0L Engine)
- DTC Troubleshooting: P0121 (2.0L Engine)
- DTC Troubleshooting: P0122 (2.0L Engine)
- DTC Troubleshooting: P0122 (3.0L Engine)
- DTC Troubleshooting: P0123 (2.0L Engine)
- DTC Troubleshooting: P0123 (3.0L Engine)
- DTC Troubleshooting: P0128 (2.0L Engine)
- DTC Troubleshooting: P0128 (3.0L Engine)
- DTC Troubleshooting: P0130 (2.0L Engine)
- DTC Troubleshooting: P0130, P0150 (3.0L Engine)
- DTC Troubleshooting: P0133 (2.0L Engine)
- DTC Troubleshooting: P0133, P0153 (3.0L Engine)
- DTC Troubleshooting: P0134 (2.0L Engine)
- DTC Troubleshooting: P0134, P0154 (3.0L Engine)
- DTC Troubleshooting: P0135 (2.0L Engine)
- DTC Troubleshooting: P0137 (2.0L Engine)
- DTC Troubleshooting: P0137 (3.0L Engine)
- DTC Troubleshooting: P0138 (2.0L Engine)
- DTC Troubleshooting: P0138 (3.0L Engine)
- DTC Troubleshooting: P0139 (2.0L Engine)
- DTC Troubleshooting: P0139 (3.0L Engine)
- DTC Troubleshooting: P0140 (3.0L Engine)
- DTC Troubleshooting: P0141 (2.0L Engine)
- DTC Troubleshooting: P0171 (2.0L Engine) (2024 2025)
- Notes
- Overview
- Inspection Outline
- Confirmation Procedure
- Related Information
- HDS Function
- MAF Sensor Visual Inspection
- MAF Sensor Functional Inspection
- Intake Air System and Lubrication System Components Installation Condition Inspection
- Intake Air System Inspection
- EVAP Canister Purge Line Inspection
- PCV Valve, PCV Hose Inspection
- Fuel Pressure Inspection (High Pressure Side)
- Fuel Inspection
- A/F Sensor (Sensor 1) Inspection
- Injector Inspection
- PCM Inspection
- DTC Troubleshooting: P0171, P0174 (3.0L Engine) (2024 2025)
- Notes
- Overview
- Inspection Outline
- Confirmation Procedure
- ? Related Information
- HDS Function
- MAF Sensor Visual Inspection
- MAF Sensor Functional Inspection
- Intake Air System Inspection (Leakage)
- PCV System 1 Inspection (Leakage)
- PCV System 2 Inspection (Leakage)
- EVAP Purge System Inspection (Leakage)
- T/C Bypass System Inspection (Leakage)
- Fuel Pressure Inspection (High Pressure Side)
- Fuel Inspection
- A/F Sensor (Sensor 1) Inspection
- Injector Inspection
- PCM Inspection
- DTC Troubleshooting: P0171, P0174, P2187 (3.0L Engine) (2021 2022 2023)
- DTC Troubleshooting: P0171, P2187 (2.0L Engine)
- DTC Troubleshooting: P0172 (2.0L Engine)
- DTC Troubleshooting: P0172, P0175 (3.0L Engine)
- DTC Troubleshooting: P0191 (3.0L Engine)
- DTC Troubleshooting: P0192 (2.0L Engine)
- DTC Troubleshooting: P0192 (3.0L Engine)
- DTC Troubleshooting: P0193 (2.0L Engine)
- DTC Troubleshooting: P0193 (3.0L Engine)
- DTC Troubleshooting: P0201, P0202, P0203, P0204 (2.0L Engine)
- DTC Troubleshooting: P0201, P0202, P0203, P0204, P0205, P0206 (3.0L Engine)
- DTC Troubleshooting: P0221 (2.0L Engine)
- DTC Troubleshooting: P0222 (2.0L Engine)
- DTC Troubleshooting: P0222 (3.0L Engine)
- DTC Troubleshooting: P0223 (2.0L Engine)
- DTC Troubleshooting: P0223 (3.0L Engine)
- DTC Troubleshooting: P0234 (2.0L Engine)
- DTC Troubleshooting: P0234 (3.0L Engine)
- DTC Troubleshooting: P0235 (2.0L Engine)
- DTC Troubleshooting: P0236 (2.0L Engine)
- DTC Troubleshooting: P0237 (2.0L Engine)
- DTC Troubleshooting: P0237 (3.0L Engine)
- DTC Troubleshooting: P0238 (2.0L Engine)
- DTC Troubleshooting: P0238 (3.0L Engine)
- DTC Troubleshooting: P023D (2.0L Engine)
- DTC Troubleshooting: P023D (3.0L Engine)
- DTC Troubleshooting: P027E (2.0L Engine)
- DTC Troubleshooting: P027F (2.0L Engine)
- DTC Troubleshooting: P0299 (2.0L Engine)
- DTC Troubleshooting: P0300, P0301, P0302, P0303, P0304 (2.0L Engine)
- DTC Troubleshooting: P0300, P0301, P0302, P0303, P0304, P0305, P0306 (3.0L Engine)
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.