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.
2011 Ford Edge SEL, FWDFACTORY OEM SERVICE PROCEDURE
HVAC Module
HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| B127B:11 | Ambient Lighting Zone 1 Output Red LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B127B:13 | Ambient Lighting Zone 1 Output Red LED: Circuit Open | GO to PINPOINT TEST K . |
| B127C:11 | Ambient Lighting Zone 2 Output Red LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B127C:13 | Ambient Lighting Zone 2 Output Red LED: Circuit Open | GO to PINPOINT TEST K . |
| B127D:11 | Ambient Lighting Zone 3 Output Red LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B127D:13 | Ambient Lighting Zone 3 Output Red LED: Circuit Open | GO to PINPOINT TEST K . |
| B127E:11 | Ambient Lighting Zone 1 Output Green LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B127E:13 | Ambient Lighting Zone 1 Output Green LED: Circuit Open | GO to PINPOINT TEST K . |
| B127F:11 | Ambient Lighting Zone 2 Output Green LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B127F:13 | Ambient Lighting Zone 2 Output Green LED: Circuit Open | GO to PINPOINT TEST K . |
| B1280:11 | Ambient Lighting Zone 3 Output Green LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B1280:13 | Ambient Lighting Zone 3 Output Green LED: Circuit Open | GO to PINPOINT TEST K . |
| B1281:11 | Ambient Lighting Zone 1 Output Blue LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B1281:13 | Ambient Lighting Zone 1 Output Blue LED: Circuit Open | GO to PINPOINT TEST K . |
| B1282:11 | Ambient Lighting Zone 2 Output Blue LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B1282:12 | Ambient Lighting Zone 2 Output Blue LED: Circuit Short To Battery | GO to PINPOINT TEST K . |
| B1283:11 | Ambient Lighting Zone 3 Output Blue LED: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B1283:13 | Ambient Lighting Zone 3 Output Blue LED: Circuit Open | GO to PINPOINT TEST K . |
| B12F1:11 | Ambient Lighting Zone 1 Output : Circuit Short To Ground | GO to PINPOINT TEST K . |
| B12F1:13 | Ambient Lighting Zone 1 Output : Circuit Open | GO to PINPOINT TEST K . |
| B12F2:11 | Ambient Lighting Zone 2 Output : Circuit Short To Ground | GO to PINPOINT TEST K . |
| B12F2:13 | Ambient Lighting Zone 2 Output : Circuit Open | GO to PINPOINT TEST K . |
| B1321:11 | Ambient Lighting Zone 3 Output: Circuit Short To Ground | GO to PINPOINT TEST K . |
| B1321:13 | Ambient Lighting Zone 3 Output: Circuit Open | GO to PINPOINT TEST K . |
| All other DTCs | - | REFER to the Diagnostic Trouble Code (DTC) Chart in CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS . |
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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