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Home >> Porsche >> 2017 >> Macan Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 644 (Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- Discovery/L462) >> Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) >> Description And Operation >> DTC P0721-27: Output Shaft Speed Sensor Circuit Range/Performance - Signal rate of change above threshold >> 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.
NOTE: This DTC may be induced by an anti-lock braking system fault that allows the brakes to lock during braking.
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