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.
2023 Acura MDX BaseFACTORY OEM SERVICE PROCEDURE
Active Control Engine Mount (ACM) System DTCS (3.5L Engine)
| DTC | Description | Troubleshooting |
|---|---|---|
| P0A14 | Front Engine Mount Actuator Circuit Malfunction | DTC Troubleshooting: P0A14 (3.5L Engine) |
| P0A15 | Front Engine Mount Actuator Control Circuit Low Current | DTC Troubleshooting: P0A15 (3.5L Engine) |
| P0AB6 | Rear Engine Mount Actuator Circuit Malfunction | DTC Troubleshooting: P0AB6 (3.5L Engine) |
| P0AB7 | Rear Engine Mount Actuator Control Circuit Low Current | DTC Troubleshooting: P0AB7 (3.5L Engine) |
| P150B | Engine Mount Control Unit Internal Circuit Malfunction 2 | DTC Troubleshooting: P150B, P150C (3.5L Engine) |
| P150C | Engine Mount Control Unit Internal Circuit Malfunction 3 | DTC Troubleshooting: P150B, P150C (3.5L Engine) |
| P150E | Engine Mount Control Unit Internal Circuit Malfunction (SOL Output) | DTC Troubleshooting: P150E (3.5L Engine) |
| P15AB | Engine Mount Control Unit Power Source Circuit Low Voltage | DTC Troubleshooting: P15AB (3.5L Engine) |
| P15B0 | CKP Sensor Signal Malfunction | DTC Troubleshooting: P15B0, P15C0 (3.5L Engine) |
| P15BE | CMP Sensor Signal Malfunction | DTC Troubleshooting: P15BE, P15BF (3.5L Engine) |
| P15BF | CMP Sensor Signal Intermittent Interruption | DTC Troubleshooting: P15BE, P15BF (3.5L Engine) |
| P15C0 | CKP Sensor Signal Intermittent Interruption | DTC Troubleshooting: P15B0, P15C0 (3.5L Engine) |
| P16C4 | Engine Mount Actuator Control Power Circuit Stuck OFF | DTC Troubleshooting: P16C4 (3.5L Engine) |
| P16C5 | Engine Mount Actuator Control Power Circuit Stuck ON | DTC Troubleshooting: P16C5 (3.5L Engine) |
| P16C6 | Engine Mount Actuator High Voltage During Function Test | DTC Troubleshooting: P16C6 (3.5L Engine) |
| U0029 | F-CAN Malfunction (BUS-OFF) | DTC Troubleshooting: U0029 (Engine Mount Control Unit (3.5L Engine)) |
| U0100 | F-CAN Malfunction (ACM-PCM) | DTC Troubleshooting: U0100 (Engine Mount Control Unit (3.5L Engine)) |
| U0101 | F-CAN Malfunction (ACM-TCM) | DTC Troubleshooting: U0101 (Engine Mount Control Unit (3.5L Engine)) |
Factory Service Tools
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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.
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