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2015 Ranger Rover v6 (L405) - Rainbow Dashboard - Electrical Issue?

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Old Feb 26, 2026 | 12:28 PM
  #1  
seanflays091's Avatar
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Unhappy 2015 Ranger Rover v6 (L405) - Rainbow Dashboard - Electrical Issue?

Hello everybody, I am having issues with my Range Rover today where I got a bunch of dash messages including (ABS Issue, Parking Break Fault, Stability Control, Stability Control Fault, HDC, Emergency Break). So I assume its something electrical because its touching different systems.

I have already checked the ground wire behind the wheel well, ground wire under mass air flow, ground wire connected to trans, and did a battery reset. All grounds look good and not corroded.

Resting Battery Voltage: 12.3v

Running Battery Voltage: 14.7v


Anyone have any ideas on what may be going on here?
 
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Old Mar 2, 2026 | 01:20 PM
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wcc18999's Avatar
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How old is your battery? Even though the battery readings are normal, it could be beginning to go bad and causing these issues. Hook it up to a OBD scanner and see what kind of codes it is throwing.
 
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