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Home >> Land Rover >> 2013 >> Range Rover Sport HSE >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Adaptive Speed Control Module (ASCM) -- Range Rover Sport/L320 >> Diagnostic Trouble Code Index DTC: Adaptive Speed Control Module (ASCM) >> Description And Operation >> DTC U0421-81: Invalid Data Received from Suspension Control Module A - Invalid serial data received >> Possible Causes
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Possible Causes

NOTE: Adaptive cruise control is disabled and instrument pack displays warning message "cruise not available"
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