Code Definition

C1A13 (64) — Pressure Does Not Decrease When Venting Gallery

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Land Rover

About C1A13

C1A13 is a manufacturer-specific chassis diagnostic trouble code recorded for Land Rover vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1A13 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

DTC C1A13:64 is set by the Suspension Control Module when the air suspension system is commanded to vent air from the reservoir or suspension gallery, but the monitored pressure does not decrease as expected. The fault is logged when the pressure sensor feedback shows little or no pressure drop within a calibrated time window during a venting operation. This means the system cannot release air correctly, which prevents proper suspension lowering and pressure regulation. With this fault the vehicle may refuse to lower, sit higher than commanded, fail to level, and display a suspension fault mes...

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