Normal Operation
WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
Based on the input received from the instrument panel dimmer switch, the Smart Junction Box (SJB) sends a pulse-width modulated voltage to the hardwired dimmable components.
DTC FAULT TRIGGER CONDITIONS
| DTC Description | Fault Trigger Conditions |
|---|---|
|
A continuous DTC that sets when the SJB has temporarily shut down the output driver. The module has temporarily disabled the backlighting output because an excessive current draw exists (such as a short to ground). The SJB cannot enable the backlighting output until the cause of the short is corrected, the DTCs have been cleared and a successful self-test is run . |
|
A continuous DTC that sets when the SJB has permanently shut down the output driver. The module has permanently disabled the backlighting output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the SJB can withstand. The cause of the excessive current draw MUST be corrected before a new SJB is installed . |
|
An on-demand DTC that sets when the SJB detects an open from the backlighting output circuit. |
|
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 |