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Home >> Porsche >> 2017 >> Macan S >> Repair and Diagnosis >> External Pages >> Different car >> Section 663 (Diagnostic Trouble Code Index DTC: TELEMATIC Control Module (TCU) -- Discovery/L462) >> Diagnostic Trouble Code Index DTC: Telematic Control Module (TCU) >> Description And Operation >> DTC U2109-09: Back-up Battery - Component Failures >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
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