Rear lights, checking with Output Diagnostic Test Mode (DTM)

Rear light function can be checked via output Diagnostic Test Mode (DTM) of Vehicle Electrical System Control Module J519.

• Connect Vehicle Diagnosis, Testing and Information System VAS 5051/5052 → VAS 5051 / 5052  under Vehicle Diagnostic, Testing and Information System VAS 5051 / 5052, onnecting 
• Select operating mode "Guided Fault Finding"
• Enter information as prompted and press ">" to confirm.

After the DTC memory of all control modules has been checked:

• Use "Go to" button to select "Function / Component Selection"
• Select "Body (Repair Group 01; 27; 50-97)"
• Select "Electrical system int/ext (Repair Group 01; 27; 90-97)"
• Select "01 - Self-diagnosis"

• Select "Vehicle Electrical System Control Module"
• Select "Vehicle Electrical System Control Module functions"
• Select "J519 - output DTM, sequential (Repair Group 97)"
• Press ">" to confirm.

• Select "1 - Output Diagnostic Test Mode (DTM) for an individual component"
• Search and select appropriate light or switch component from menu, or
• Select "2 - Output Diagnostic Test Mode (DTM) for all actuators"
• Follow tester prompts