Overload on truck 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 A7).
What you'll see
Brake light on truck 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 truck is out of order.
Possible cause
Short circuit or too high load on the truck brake light output. The problem could also depend on short circuit in cable harness.