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 Land Rover Defender 90 First EditionFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Index DTC: Tire Pressure Monitoring System Control Module (TPMSCM) -- Defender/L663
- Diagnostic Trouble Code Index - DTC: Tire Pressure Monitoring System Control Module (TPMSCM) (G2400920)
- Description And Operation
- Tire Pressure Monitoring System Control Module (TPMSCM)
- Notes
- DTC B1182-17: Tire Pressure Monitoring System - Circuit voltage above threshold
- DTC B1182-96: Tire Pressure Monitoring System - Component internal failure
- DTC C1A56-31: Left Front Tire Pressure Sensor and Transmitter Assembly - No signal
- DTC C1A56-4A: Left Front Tire Pressure Sensor and Transmitter Assembly - Incorrect component installed
- DTC C1A56-93: Left Front Tire Pressure Sensor and Transmitter Assembly - No operation
- DTC C1A58-31: Right Front Tire Pressure Sensor and Transmitter Assembly - No signal
- DTC C1A58-4A: Right Front Tire Pressure Sensor and Transmitter Assembly - Incorrect component installed
- DTC C1A58-93: Right Front Tire Pressure Sensor and Transmitter Assembly - No operation
- DTC C1A60-31: Left Rear Tire Pressure Sensor and Transmitter Assembly - No signal
- DTC C1A60-4A: Left Rear Tire Pressure Sensor and Transmitter Assembly - Incorrect component installed
- DTC C1A60-93: Left Rear Tire Pressure Sensor and Transmitter Assembly - No operation
- DTC C1A62-31: Right Rear Tire Pressure Sensor and Transmitter Assembly - No signal
- DTC C1A62-4A: Right Rear Tire Pressure Sensor and Transmitter Assembly - Incorrect component installed
- DTC C1A62-93: Right Rear Tire Pressure Sensor and Transmitter Assembly - No operation
- DTC C1D18-00: Wheel Localisation Failed - No sub type information
- DTC U0046-81: Vehicle Communication Bus C - Invalid serial data received
- DTC U0046-82: Vehicle Communication Bus C - Alive/sequence counter incorrect/not updated
- DTC U0046-86: Vehicle Communication Bus C - Signal invalid
- DTC U0046-87: Vehicle Communication Bus C - Missing message
- DTC U0046-88: Vehicle Communication Bus C - Bus off
- DTC U0300-00: Internal Control Module Software Incompatibility - No sub type information
- DTC U2300-54: Central Configuration - Missing calibration
- DTC U2300-55: Central Configuration - Not configured
- DTC U2300-56: Central Configuration - Invalid/incomplete configuration
- DTC U2300-64: Central Configuration - Signal plausibility failure
- DTC U3000-51: Control Module - Not programmed
- Tire Pressure Monitoring System Control Module (TPMSCM)
- Description And Operation
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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