Test Y: The Individual Trailer Lamp Is Inoperative - RH Trailer Stoplamp

PINPOINT TEST Y: THE INDIVIDUAL TRAILER LAMP IS INOPERATIVE - RH TRAILER STOPLAMP

Y1-Y2:

Y2-Y3:

Normal Operation
Voltage to the RH trailer stoplamp is supplied by the smart junction box (SJB) through circuit CAT09 (GN).

Possible Causes
- Circuit CAT09 (GN) open or short to ground
- Trailer
- SJB