DTC | Description | Fault Trigger Conditions |
B1315:11 | Backlighting (Non Reflective Controls) Illumination Output: Circuit Short To Ground | A continuous and on-demand DTC that sets in the BCM when the BCM detects an excessive current draw from the backlighting illumination circuit. |
B1315:15 Backlighting (Non Reflective Controls) Illumination Output: Circuit Short To Battery or Open | A continuous and on-demand DTC that sets in the BCM when the BCM detects a lower than expected current draw from the backlighting illumination circuit. |
Possible Sources
Wiring, terminals or connectors Dimmer switch (part of the headlamp switch) BCM
PINPOINT TEST B : ALL NON-NETWORKED ILLUMINATION IS INOPERATIVE
B1 RETRIEVE AND RECORD DIAGNOSTIC TROUBLE CODES (DTCS)
Ignition ON. Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs).
Is DTC B1315:11 or B1315:15 present?
Yes | For B1315:15 GO to B2 For B1315:11 GO to B4 |
|---|---|
No | REFER to Symptom Chart. |
B2 CHECK THE BACKLIGHTING ILLUMINATION OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
Ignition OFF. Disconnect Headlamp switch C205. Ignition ON. Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C205-15 | Ground |
Is any voltage present?
Yes | REPAIR the circuit in question. |
|---|---|
No | GO to B3 |
B3 CHECK THE BACKLIGHTING ILLUMINATION OUTPUT CIRCUIT FOR AN OPEN
Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C205-15 | C2280B-45 |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.