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Land Rover
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2017
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Range Rover Sport HSE Dynamic
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Repair and Diagnosis
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Restraints
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Restraints Control Systems
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Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) -- Range Rover Sport/L494
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Diagnostic Trouble Code Index DTC Restraints Control Module (RCM)
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Description And Operation
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DTC B0021-1A: Left Curtain Deployment Control 1 - Circuit resistance below threshold
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Possible Causes
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Possible Causes
Left side air curtain connector lever not engaged
Left side air curtain circuit short circuit between power and ground
Airbag squib component fault