PINPOINT TEST AF : The Stoplamps Are On Continuously: Notes
WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic Overview
The Stoplamps Are On Continuously
Refer to Turn Signal/Stop/Hazard Lamps for schematic and connector information.
Normal Operation and Fault Conditions
Refer to Exterior Lighting .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B132B:15 | Left Stop/Turn Lamp: Circuit Short To Battery or Open | A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the LH rear stop/turn lamp voltage supply circuit. |
| B132C:15 | Right Stop/Turn Lamp: Circuit Short To Battery or Open | A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the RH rear stop/turn lamp voltage supply circuit. |
| C0040:12 | Brake Pedal Switch "A": Circuit Short To Battery | A continuous memory and on-demand DTC that sets when the BCM detects a short to voltage from the BPP switch input circuit. |
| P1571:12 | Brake Switch: Circuit Short To Battery | An on-demand DTC that sets when the RFA module detects a short to voltage from the BPP switch input circuit. |
RFA Module DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P1571:12 | Brake Switch: Circuit Short To Battery | An on-demand DTC that sets when the RFA module detects a short to voltage from the stoplamp switch input circuit. |
Visual Inspection and Diagnostic Pre-checks
- Inspect the stoplamp switch for damage.