Test J: The Stoplamps Are On Continuously

PINPOINT TEST J: THE STOPLAMPS ARE ON CONTINUOUSLY

Normal Operation - Taurus, Taurus X
When the brake pedal is applied, the stoplamp switch routes voltage to the SJB, the PCM and the high mounted stoplamp through circuit CCB08 (VT/WH). The SJB then provides voltage to the LH and RH rear lamps through circuits CLS18 (GY/BN) and CLS19 (VT/OG), respectively.

Normal Operation - Sable
When the brake pedal is applied, the stoplamp switch routes voltage to the SJB, the PCM, the rear lamps, and the high mounted stoplamp through circuit CCB08 (VT/WH).

- DTC B1485 (Brake Pedal Input Short to Battery) - is an on-demand DTC that sets when the SJB detects a short to voltage from the stoplamp switch input circuit.
- DTC B2045 (Left Rear Stop Lamp Circuit Open) - is an on-demand DTC that sets when the SJB detects a short to voltage on the LH rear stop/turn lamp voltage supply circuit.
- DTC B2047 (Right Rear Stop Lamp Circuit Open) - is an on-demand DTC that sets when the SJB detects a short to voltage on the RH rear stop/turn lamp voltage supply circuit.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Stoplamp switch
- PCM
- SJB

J1-J6:

J7: