Normal Operation
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
When the parking lamps are on, the Smart Junction Box (SJB) sends a Pulse Width Modulated (PWM) voltage to the dimmable components.
- DTC B2A32 (LED Backlighting Output Circuit Open) - an on-demand DTC that sets when the SJB detects an open from the backlighting output circuit.
- DTC B2A33 (LED Backlighting Output Circuit Short To Ground) - a continuous and on-demand DTC that sets when the SJB detects a short to ground from the backlighting output circuit. The DTC also sets as a result when fuse 10 (15A) has failed or is removed.
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- SJB