Land Rover
Generator (alternator) control circuit range/performance. Charging system fault that can bring restricted performance on Range Rover Sport.
P065B fault code: what it means
P065B: Generator (alternator) control circuit range/performance. Charging system fault that can bring restricted performance on Range Rover Sport.
Usual causes, most likely first
- weak battery or low charging voltage
- damaged battery monitor sensor or its fusible lead
- failing alternator or regulator
- alternator wiring or poor earth
P065B by make
What the repair usually costs
- 12 V battery replace, standard flooded (small / medium car)NZ$190–NZ$330 · A$170–A$310
- 12 V battery replace, standard flooded (SUV / ute / 4WD)NZ$290–NZ$500 · A$270–A$460
- Alternator replace (small / medium car, petrol)NZ$510–NZ$1,020 · A$480–A$1,000
Not sure what P065B means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.