Defect Code 13
Defect Code 13:Failure of Check-Control:
Text message check-control in display unit:
Possible cause: Power supply from CCM or LKM defective. Data links between instrument cluster and CCM (or BC) defective. Data links between CCM and LKM defective.
Troubleshooting: As displayed on screen (BMW Service Tester) or in accordance with Instrument Cluster/Check-Control - Troubleshooting, Defect code 04.