Pinpoint Test 3

PINPOINT TEST 3: THE STOPLAMPS ARE ON CONTINUOUSLY

Normal Operation
When the brake pedal is applied, the brake pedal position switch routes voltage to the smart junction box (SJB), the high mounted stoplamp, the PCM and the speed control actuator through circuit (V/W). When the SJB detects the brake pedal applied, the SJB provides voltage to the LH and RH rear stoplamps through circuits (GY/BR) and (V/O), respectively. If equipped with trailer tow, voltage is also supplied to the respective trailer tow stop/turn relay.
- 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 brake pedal position 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.

Possible Causes
- Wiring, terminals or connectors
- Brake pedal position switch
- Speed control actuator
- PCM
- SJB

Step 1-Step 7:

Step 8-Step 9: