Test H: The Stoplamps Are On Continuously

PINPOINT TEST H: THE STOPLAMPS ARE ON CONTINUOUSLY

H1-H4:

H4-H7:

Normal Operation
When the brake pedal is applied, the stoplamp switch routes voltage to the smart junction box (SJB) through circuit 511 (LG). Voltage is also routed to the powertrain control module (PCM) through circuit 599 (PK/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 B1485 - sets when the SJB detects a short to voltage from the stoplamp switch input.

DTC B2049 - sets when the SJB detects a short to voltage on the LH stoplamp 1 voltage supply circuit.

DTC B2051 - sets when the SJB detects a short to voltage on the LH stoplamp 1 voltage supply circuit.

DTC B2519 - sets when the SJB detects a short to voltage on the high mounted stoplamp voltage supply circuit.

DTC B2528 - sets when the SJB detects a short to voltage on the LH stoplamp 2 voltage supply circuit.

DTC B2529 - sets when the SJB detects a short to voltage on the LH stoplamp 1 voltage supply circuit.

DTC B2534 - sets when the SJB detects a short to voltage on the RH stoplamp 2 voltage supply circuit.

Possible Causes
- Circuit 511 (LG) short to voltage
- Circuit 599 (PK/LG) short to voltage
- Circuit 1363 (WH/RD) short to voltage
- Circuit 1374 (TN/LB) short to voltage
- Circuit 1728 (LB/OG) short to voltage
- Circuit 1783 (RD/WH) short to voltage
- Stoplamp switch
- SJB
- PCM