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.
2021 Acura TLX BaseFACTORY OEM SERVICE PROCEDURE
TPMS DTCS: TPMS
| DTC | Description |
|---|---|
| C1800-87 | Tire Pressure Sensor Signal Reception Error |
| C1801-55 | Right-Front Tire Pressure Sensor ID Registration Error |
| C1801-87 | Right-Front Tire Pressure Sensor Signal Transmission Error |
| C1801-92 | Right-Front Tire Pressure Sensor Low Battery |
| C1801-96 | Right-Front Tire Pressure Sensor Malfunction |
| C1801-98 | Right-Front Tire Abnormal High Temperature |
| C1802-55 | Left-Front Tire Pressure Sensor ID Registration Error |
| C1802-87 | Left-Front Tire Pressure Sensor Signal Transmission Error |
| C1802-92 | Left-Front Tire Pressure Sensor Low Battery |
| C1802-96 | Left-Front Tire Pressure Sensor Malfunction |
| C1802-98 | Left-Front Tire Abnormal High Temperature |
| C1803-55 | Right-Rear Tire Pressure Sensor ID Registration Error |
| C1803-87 | Right-Rear Tire Pressure Sensor Signal Transmission Error |
| C1803-92 | Right-Rear Tire Pressure Sensor Low Battery |
| C1803-96 | Right-Rear Tire Pressure Sensor Malfunction |
| C1803-98 | Right-Rear Tire Abnormal High Temperature |
| C1804-55 | Left-Rear Tire Pressure Sensor ID Registration Error |
| C1804-87 | Left-Rear Tire Pressure Sensor Signal Transmission Error |
| C1804-92 | Left-Rear Tire Pressure Sensor Low Battery |
| C1804-96 | Left-Rear Tire Pressure Sensor Malfunction |
| C1804-98 | Left-Rear Tire Abnormal High Temperature |
| C1810-11 | Initiator Circuit Short |
| C1811-13 | Right-Front Initiator Circuit Open |
| C1812-13 | Left-Front Initiator Circuit Open |
| C1813-13 | Right-Rear Initiator Circuit Open |
| C1814-13 | Left-Rear Initiator Circuit Open |
| C1821-78 | Right-Front Tire Low Air Pressure |
| C1822-78 | Left-Front Tire Low Air Pressure |
| C1823-78 | Right-Rear Tire Low Air Pressure |
| C1824-78 | Left-Rear Tire Low Air Pressure |
| C1830-00 | Vehicle Speed Signal Malfunction |
| U0029-00 | F-CAN Malfunction (Bus-Off) |
| U0100-00 | F-CAN Malfunction (TPMS Control Unit Lost Communication with ECM/PCM(PGM-FI)) |
| U0101-00 | F-CAN Malfunction (TPMS Control Unit Lost Communication with PCM(A/T)) |
| U3000-49 | TPMS Control Unit Internal Circuit Malfunction |
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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