Test G: One Or More Stoplamps Are Inoperative

PINPOINT TEST G: ONE OR MORE STOPLAMPS ARE INOPERATIVE

G1-G3:

G3-G5:

G5-G7:

G8-G11:

G11-G13:

Normal Operation
Voltage is supplied from the bussed electrical center (BEC) to the smart junction box (SJB) through circuits 1523 (DG), 905 (GY/LB), and 1052 (TN/BK) to power the LH stoplamps, RH stoplamps, and the high mounted stoplamp.

The stoplamp switch is provided voltage through circuit 10 (LG/RD). When the brake pedal is applied, the stoplamp switch routes voltage to the SJB through circuit 511 (LG). The SJB then provides voltage to the stoplamps through circuits 1783 (RD/WH), 1374 (TN/LB), 1728 (LB/OG), and 1363 (WH/RD). Ground for the stoplamps is provided through circuit 1205 (BK).

DTC B2044 - sets when the SJB detects a short to ground on the LH stoplamp 1 voltage supply circuit.

DTC B2046 - sets when the SJB detects a short to ground on the RH stoplamp 1 voltage supply circuit.

DTC B2048 - sets when the SJB detects a short to ground on the LH stoplamp 1 voltage supply circuit.

DTC B2049 - sets when the SJB detects an open or short to ground on the LH stoplamp 1 voltage supply circuit.

DTC B2050 - sets when the SJB detects a short to ground on the RH stoplamp 1 voltage supply circuit.

DTC B2051 - sets when the SJB detects an open or short to ground on the LH stoplamp 1 voltage supply circuit.

DTC B2519 - sets when the SJB detects an open or short to ground on the high mounted stoplamp voltage supply circuit.

DTC B2527 - sets when the SJB detects a short to ground on the LH stoplamp 2 voltage supply circuit.

DTC B2528 - sets when the SJB detects an open on the LH stoplamp 2 voltage supply circuit.

DTC B2529 - sets when the SJB detects an open or short to ground on the LH stoplamp 1 voltage supply circuit.

DTC B2533 - sets when the SJB detects a short to ground on the RH stoplamp 2 voltage supply circuit.

DTC B2534 - sets when the SJB detects an open on the RH stoplamp 2 voltage supply circuit.

Possible Causes
- Fuse
- Circuit 10 (LG/RD) open
- Circuit 511 (LG) open
- Circuit 905 (GY/LB) open
- Circuit 1052 (TN/BK) open
- Circuit 1205 (BK) open
- Circuit 1363 (WH/RD) open or short to ground
- Circuit 1374 (TN/LB) open or short to ground
- Circuit 1523 (DG) open
- Circuit 1728 (LB/OG) open or short to ground
- Circuit 1783 (RD/WH) open or short to ground
- Stoplamp switch
- SJB
- BEC