Home >> Land Rover >> 2020 >> Discovery Sport Base >> Repair and Diagnosis >> Quick Lookups >> Common Specs & Procedures >> Diagnostic Trouble Code Index DTC: TELEMATIC Control Module (TCU) - Discovery Sport/L550 >> Diagnostic Trouble Code Index - DTC: TELEMATIC Control Module (TCU) (G2153768) >> Description And Operation >> TELEMATIC Control Module (TCU) >> DTC B116D-13: SOS On Call Keypad - Circuit open >> Possible Causes