Test G: The Stoplamps Are On Continuously

PINPOINT TEST G: THE STOPLAMPS ARE ON CONTINUOUSLY

G1-G6:

G7-G12:

Normal Operation
When the brake pedal is applied, the stoplamp switch routes voltage through circuit 569 (DG) to the brake shift interlock actuator, the anti-lock brake system (ABS) module (without stability assist), the powertrain control module (PCM), and the central junction box (CJB) fuse 39 (10A). The CJB then routes the voltage through circuit 511 (LG) to the high mounted stoplamp, the trailer tow electric brake controller (if equipped), and the multifunction switch. The multifunction switch then routes voltage to the rear lamps through circuit 9 (LG/OG) (LH rear lamp) and circuit 5 (OG/LB) (RH rear lamp).

On vehicles equipped with stability assist, the ABS module controls a relay which, when energized, routes voltage to circuit 569 (DG).

Possible Causes
- Circuit 5 (OG/LB short to voltage
- Circuit 9 (LG/OG) short to voltage
- Circuit 511 (LG) short to voltage
- Circuit 569 (DG) short to voltage
- Circuit 1651 (WH/RD) short to ground
- Stoplamp switch
- Stability assist stoplamp control relay
- Multifunction switch
- Trailer tow electric brake controller
- Brake shift interlock actuator
- ABS module
- PCM