Jaguar Electrical Diagnostics
Jaguar uses Jaguar Land Rover's body-electronics architecture: a Body Control Module (BCM), the Keyless Vehicle Module (KVM) for keyless and security functions, and a central gateway. Faults on the KVM and BCM are well-known causes of 'key not detected', no-start and locking problems. JLR diagnostics use SDD and the newer Pathfinder tool. We diagnose the complete system before recommending any module replacement.
Jaguar Control Modules & Electronics
Key modules and electronic systems used across Jaguar vehicles. Correct identification of the module is the first step in proper diagnosis.
BCM — Body Control Module
Lighting, locking, wipers, comfort and power management.
KVM — Keyless Vehicle Module
Keyless entry, start and immobiliser; key-not-detected and no-start faults.
Gateway
Network gateway; communication faults affect multiple systems.
IPC — Instrument Cluster
Warning messages and display faults.
DSC / ABS
Stability control.
Adaptive Dynamics / Suspension
Electronic damper and air-suspension control.
ADAS / Camera + Radar
Driver-assistance systems.
Common Jaguar Electrical Faults
Faults we frequently see on Jaguar vehicles. Each links to a detailed, all-makes guide covering symptoms, causes and our diagnostic approach.
Body Control Module (BCM) Faults
Central body electronics controlling locking, lighting, wipers and comfort.
READ GUIDEKey Not Detected
Vehicle doesn't recognise the key — won't start or unlock.
READ GUIDEABS Warning Light
ABS warning on — stability and braking-system fault.
READ GUIDEBattery Warning Light & Vehicle Not Charging
Charging-system fault — battery warning or vehicle not charging.
READ GUIDEParking Assist Unavailable
Parking sensors or park assist not working.
READ GUIDEAirbag / SRS Warning Light
Airbag or SRS warning light on — restraint-system fault.
READ GUIDEElectric Power Steering Fault
EPS warning — steering assistance reduced or unavailable.
READ GUIDEAir Suspension Faults
Air-suspension warning — ride-height or compressor fault.
READ GUIDECAN Bus / Network Communication Faults
Network communication fault affecting multiple modules.
READ GUIDEJaguar Models We Cover
Jaguar Electrical Fault?.
Tell us about your Jaguar, the symptoms and any warning messages. OBD_PAL diagnoses the complete system before recommending any repair — don't guess, diagnose it properly.