Diagnostic Trouble Code (DTC) on Land Rover and Jaguar vehicles refers to an Engine Speed Input circuit fault, specifically identifying a Circuit Short to Ground . This error is typically stored in the Audio Amplifier Module (AAM)
The physical twisted-pair wiring that delivers engine speed data from the Engine Control Module (ECM) to the Central Gateway and down to the AAM may have sustained damage. This typically occurs due to:
Have you noticed any other or low battery warnings recently?
When this code is active, your vehicle will likely exhibit one or more of the following symptoms:

