The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2018 Range Rover Sport Battery Drain & Stop/Start Not Working - P0562 Code

0

Mike T. · rep 0 · May 25, 4:44 AM · 1 replies · solved · Question

Vehicle: 2018 Land Rover Range Rover Sport HSE

Hey everyone,

I've been having some frustrating issues with my 2018 Range Rover Sport HSE. Lately, the battery seems to be draining really fast, especially if I leave it parked for a couple of days. I'm getting frequent 'Low Battery' warnings on the dash, and the Stop/Start system hasn't worked in weeks.

I hooked up an OBD scanner, and it's throwing a P0562 code, which points to System Voltage Low. I've checked the battery terminals, and they seem clean and tight. Could this be a failing alternator, or something else drawing power when the car is off? Any advice would be greatly appreciated before I take it to the dealer.

Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:44 AM

0

ClearTheCode admin answer:

Experiencing a P0562 code along with battery drain and stop/start malfunction on your 2018 Range Rover Sport HSE indicates a fundamental issue with your vehicle's charging system or parasitic draw.

Common Causes:

  1. Failing Battery: Even a relatively new battery can fail, especially in vehicles with complex electrical systems like Land Rovers. The P0562 code often accompanies a weak or failing battery that can't hold a charge or deliver sufficient voltage.
  2. Failing Alternator: The alternator is responsible for charging the battery while the engine runs. A faulty alternator might not be producing enough voltage or current, leading to a chronically undercharged battery.
  3. Parasitic Draw: This occurs when an electrical component continues to draw power even after the vehicle is turned off. Common culprits include faulty modules (e.g., infotainment, navigation), interior lights staying on, or aftermarket accessories.
  4. Loose or Corroded Connections: While you've checked the terminals, issues can exist further down the line, such as ground straps or connections to the alternator.
  5. Battery Monitoring System (BMS) Fault: Modern Land Rovers have sophisticated BMS systems. A fault in this system can mismanage charging or incorrectly report battery status.

Troubleshooting Steps:

  1. Battery Load Test: Have your battery professionally load tested. This will determine if the battery itself is healthy enough to hold and deliver a charge.
  2. Alternator Output Test: Using a multimeter, check the voltage across your battery terminals with the engine running. It should ideally be between 13.5V and 14.5V. If it's significantly lower, your alternator might be failing.
  3. Check for Parasitic Draw (Advanced): This involves using a multimeter in series with the battery to measure current draw when the vehicle is off. You then pull fuses one by one to isolate the circuit causing the draw. This can be time-consuming.

When to See a Shop:

  • If the battery and alternator test good, but the problem persists.
  • If you're uncomfortable performing electrical diagnostics yourself.
  • If a parasitic draw is identified, isolating the specific faulty module or component can be complex and often requires specialized diagnostic tools. A Land Rover specialist can pinpoint the exact cause and perform necessary module resets or replacements.
Menu

Help & account