Alternator and starting faults
A flashing dash or poor starting often traces back to a failing alternator.
Range Rover · L322 · 2002–2012
Charging, starting, control modules and wiring for Land Rover models.
The Range Rover (L322) was sold with both fuel types. Diesel derivatives (TDV8 turbodiesel (3.6 and 4.4)) use glow plugs, while petrol derivatives (V8 petrol and Supercharged V8 petrol) use spark plugs and ignition coils.
Electrical parts also changed across the 2002–2012 production span, so give the model year with the VIN.
A flashing dash or poor starting often traces back to a failing alternator.
Modern Land Rovers are very sensitive to low voltage. A tired battery or poor earth connection can make several modules log faults at the same time. Test the battery and charging system, check the main earth points, then clear the codes and see which faults return.
A parasitic drain, where something stays on after the vehicle is locked, is the usual cause. Common culprits include a module that does not go to sleep, an aftermarket accessory, a faulty relay or an interior light switch. A workshop can measure the current drain and pull fuses one at a time to find it.
For how these parts work and the signs of wear, read the Land Rover electrical guide.
Share the VIN and engine number and the SparesBoyz parts team will check fitment before quoting.