A known issue where the vehicle's own charging circuit or aftermarket accessories (like USB chargers, radar detectors, or dash cams) emit a 125MHz pulse that disrupts the TPMS sensors.
If you are writing this for a technical report or repair order, the most professional formatting is:
This report provides a technical analysis of the diagnostic trouble code (DTC) as it applies to Land Rover vehicles. land rover c1d18-00
For a precise repair path, refer to the and the latest Technical Service Bulletin for your specific model and VIN range.
The Land Rover fault code specifically refers to "Wheel Localization Failed" within the Tire Pressure Monitoring System (TPMS). This means the system's central control module cannot correctly identify which sensor is located at which wheel (front left, rear right, etc.). Core Causes A known issue where the vehicle's own charging
The "00" suffix indicates a general failure with no specific sub-type information. Specifically, means the Body Control Module (BCM) or Central Junction Box (CJB) cannot determine the physical location (front left, rear right, etc.) of the signals it is receiving from the wheel sensors. Common Symptoms
In Land Rover models (such as Range Rover, Range Rover Sport, Discovery, Evoque, Velar), the RCM monitors impact sensor inputs and deploys airbags and seatbelt pretensioners during a crash. It contains that stores crash event data, including: The Land Rover fault code specifically refers to
If this is an error code read by a diagnostic scanner, the proper format separates the system identifier from the code.
Using non-OEM or incorrect frequency sensors (e.g., 315MHz vs. 433MHz) can cause localization to fail, even if the sensors appear to function on a handheld tool.
The code often indicates that two or more TPMS sensors have failed or are not transmitting correctly.
. This means the vehicle's central computer cannot determine the exact position (e.g., front-left vs. rear-right) of one or more tire sensors. National Highway Traffic Safety Administration (.gov) +2 Technical Details & Fixes Official Technical Bulletins from the NHTSA and Land Rover documentation identify the following: Primary Cause: The vehicle's charging circuit can emit a 125MHz electromagnetic pulse that interferes with the TPMS sensors, preventing them from being localized. Recommended Action: Land Rover typically recommends replacing the complete set of four (or five, if including the spare) low tire pressure sensors with an updated sensor kit designed to address this interference. Interference Check: Non-approved electronic accessories (like some USB chargers or GPS units) can also disrupt sensor signals. Try removing these to see if the fault clears. Reset Procedure: If you have recently rotated tires or replaced a sensor, the vehicle must be stationary for at least 15 minutes, followed by a drive at speeds above 20 mph (32 km/h) for about 15 minutes to allow the system to re-learn sensor positions. National Highway Traffic Safety Administration (.gov) +4 Diagnostic Steps If the fault persists after a re-learn drive, technicians use manufacturer-approved diagnostics (like JLR Pathfinder or SDD) to check the