Electrical failure in the collision sensor (B1015).
â–¶ How to fix
Check wiring and connectors. Replace collision sensor.
What you'll see
The sensor will not work properly.
System reaction
Amber engine warning lamp
Diagnostic depth
Detection
The GSC indicates too low voltage on pull-up pin (B18) and too low voltage on pull-down pin (B20)
Possible cause
Collision sensor Otto Circuit Short To Ground