Overload on trailer brake light output
â–¶ How to fix
Check the number of loads connected. Also check for short circuit in the cable harness or internally in tail lamps (pin A10).
What you'll see
Brake light on trailer is out of order. The output is permanently turned off until function is deactivated. Each time the function is activated a new detection is being done.
System reaction
Amber Visibility warning
Diagnostic depth
Detection
Brake light on trailer out of order.
Possible cause
Short circuit or too high load on the brake light trailer output. The problem could also depend on short circuit in cable harness.