The Land Rover fault code indicates that the Wheel Localisation Failed within the Tire Pressure Monitoring System (TPMS) . This means the system cannot correctly identify which TPMS sensor is at which wheel position. Core Meaning of C1D18-00
In the world of Land Rover diagnostics, code translates to: "Control Module for Active Roll Control – Internal Electronic Failure." However, the "00" suffix indicates a general fault with no sub-type – meaning the software sees a problem but cannot pinpoint if it’s a voltage spike, a sensor glitch, or impending hardware death.
Before replacing parts, try the standard Land Rover manual reset to force the system to re-locate the sensors: Park the vehicle and turn the ignition completely off for at least 15 minutes Drive the vehicle land rover c1d18-00
: Devices like USB chargers, radar detectors, or cool boxes can cause interference. Try removing these and restarting the vehicle.
C1D18-00 rarely lives alone. Look for:
The TPMS needs to receive Radio Frequency (RF) transmissions from all four wheel units to match each sensor's unique ID to its physical location on the vehicle. This code is triggered if:
: External RF interference is blocking the signal. The Land Rover fault code indicates that the
| Root Cause | Solution | Estimated Cost (Parts & Labor) | | --- | --- | --- | | Weak battery | Replace main AGM battery (H8 or H9 group) | $250–$450 | | Corroded ground | Clean and re-secure grounds; replace terminals if needed | $100–$250 | | Software glitch | Perform a "Network Reset" or full CCF update via SDD (JLR software) | $150–$300 at dealer | | Faulty pressure sensor | Replace ARC valve block sensor (often sold separately) | $400–$800 | | Dead ARC module | Replace module (OEM: LR094368, LR136667, depending on model) | $2,000–$4,000 | | Burnt hydraulic pump | Replace pump and flush fluid | $1,200–$2,000 |
Land Rover C1D18-00, Active Roll Control module failure, fix C1D18-00 Land Rover, Range Rover C1D18-00 code, ARC module internal electronic failure, Land Rover fault code C1D18-00 diagnosis. Before replacing parts, try the standard Land Rover