Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Lincoln MKS Base, FWDFACTORY OEM SERVICE PROCEDURE
Interior Lighting Control Module (ILCM) DTC Chart
INTERIOR LIGHTING CONTROL MODULE (ILCM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| B106E | Solid State Driver Disabled Due to Short Circuit | The module has temporarily disabled an output because an excessive current draw exists (such as a short to ground). The Interior Lighting Control Module (ILCM) cannot enable the output until the cause of the short is corrected. ADDRESS all other DTCs first . After the cause of the concern is corrected, CLEAR the DTCs. REPEAT the self-test. |
| B106F | Module Disabled Due to External Fault | The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the Smart Junction Box (SJB) can withstand. The cause of the excessive current draw MUST be corrected before a new ILCM is installed. ADDRESS all other DTCs first . After the cause of the concern is corrected, INSTALL a new ILCM. REFER to Interior Lighting Control Module (ILCM) . TEST the system for normal operation. |
| B1342 | ECU Is Faulted | INSTALL a new ILCM. REFER to Interior Lighting Control Module (ILCM) . TEST the system for normal operation. |
| B2477 | Module Configuration Failure | REFER to MODULE CONFIGURATION . |
| B2A21 | One or More Configuration Files Missing or Corrupt | REFER to MODULE CONFIGURATION . |
| B2B18 | Ambient Light Switch Input Fault | If the ambient lighting is inoperative or does not cycle through the color combinations, GO to Pinpoint Test L
. If the ambient lighting does not cycle through the brightness settings, GO to Pinpoint Test N . |
| B2B00 | Ambient Light Zone 1 Red Circuit Open | GO to Pinpoint Test M . |
| B2B01 | Ambient Light Zone 1 Red Circuit Short to Ground | GO to Pinpoint Test M . |
| B2B02 | Ambient Light Zone 1 Green Circuit Open | GO to Pinpoint Test M . |
| B2B03 | Ambient Light Zone 1 Green Circuit Short to Ground | GO to Pinpoint Test M . |
| B2B04 | Ambient Light Zone 1 Blue Circuit Open | GO to Pinpoint Test M . |
| B2B05 | Ambient Light Zone 1 Blue Circuit Short to Ground | GO to Pinpoint Test M . |
| B2B06 | Ambient Light Zone 1 Signature Circuit Open | GO to Pinpoint Test M . |
| B2B07 | Ambient Light Zone 1 Signature Circuit Short to Ground | GO to Pinpoint Test M . |
| U0140 | Lost Communication With Body Control Module (GEM) | GO to Pinpoint Test O . |
| U2050 | No Application Present | REFER to MODULE CONFIGURATION . |
| All other DTCs | - | REFER to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULES . |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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