Home >> Land Rover >> 2021 >> Defender 110 S >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: TELEMATIC Control Unit Module (TCU) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: TELEMATIC Control Unit Module (TCU) (G2400918) >> Description And Operation >> TELEMATIC Control Unit Module (TCU) >> DTC B14A9-64: BroadR-Reach Link - Telematics (+) - Signal Plausibility Failure >> Possible Causes