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 Flex SEFACTORY OEM SERVICE PROCEDURE
HVAC Module
HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action to Take |
|---|---|---|
| B1081:00 | Left Temperature Damper Motor: No Sub Type Information | GO to PINPOINT TEST P . |
| B1081:11 | Left Temperature Damper Motor: Circuit Short to Ground | GO to PINPOINT TEST P . |
| B1081:12 | Left Temperature Damper Motor: Circuit Short to Battery | GO to PINPOINT TEST P . |
| B1082:00 | Right Temperature Damper Motor: No Sub Type Information | GO to PINPOINT TEST P . |
| B1082:11 | Right Temperature Damper Motor: Circuit Short to Ground | GO to PINPOINT TEST P . |
| B1082:12 | Right Temperature Damper Motor: Circuit Short to Battery | GO to PINPOINT TEST P . |
| B1083:00 | Recirculation Damper Motor: No Sub Type Information | GO to PINPOINT TEST J . |
| B1083:11 | Recirculation Damper Motor: Circuit Short to Ground | GO to PINPOINT TEST J . |
| B1083:12 | Recirculation Damper Motor: Circuit Short to Battery | GO to PINPOINT TEST J . |
| B1086:00 | Air Distribution Damper Motor: No Sub Type Information | GO to PINPOINT TEST K . |
| B1086:11 | Air Distribution Damper Motor: Circuit Short to Ground | GO to PINPOINT TEST K . |
| B1086:12 | Air Distribution Damper Motor: Circuit Short to Battery | GO to PINPOINT TEST K . |
| B10AF:11 | Blower Fan Relay: Circuit Short to Ground | GO to PINPOINT TEST R . |
| B10AF:12 | Blower Fan Relay: Circuit Short to Battery | GO to PINPOINT TEST Q . |
| B10AF:13 | Blower Fan Relay: Circuit Open | GO to PINPOINT TEST Q . |
| B10B0:11 | Rear Blower Fan Relay: Circuit Short to Ground | GO to PINPOINT TEST T . |
| B10B0:12 | Rear Blower Fan Relay: Circuit Short to Battery | GO to PINPOINT TEST S . |
| B10B0:13 | Rear Blower Fan Relay: Circuit Open | GO to PINPOINT TEST S . |
| B10B7:11 | Rear Air Discharge Temperature: Circuit Short to Ground | GO to PINPOINT TEST U . |
| B10B7:15 | Rear Air Discharge Temperature: Circuit Short to Battery or Open | GO to PINPOINT TEST U . |
| B10B9:12 | Blower Control: Circuit Short to Battery | GO to PINPOINT TEST R . |
| B10B9:14 | Blower Control: Circuit Short to Ground or Open | GO to PINPOINT TEST Q . |
| B10BA:12 | Rear Blower Control: Circuit Short to Battery | GO to PINPOINT TEST S . |
| B10BA:14 | Rear Blower Control: Circuit Short to Ground or Open | GO to PINPOINT TEST S . |
| B11E0:12 | Rear HVAC Status Lamp #1: Circuit Short to Battery | GO to PINPOINT TEST X . |
| B11E0:14 | Rear HVAC Status Lamp #1: Circuit Short to Ground or Open | GO to PINPOINT TEST X . |
| B11E1:12 | Rear HVAC Status Lamp #2: Circuit Short to Battery | GO to PINPOINT TEST X . |
| B11E1:14 | Rear HVAC Status Lamp #2: Circuit Short to Ground or Open | GO to PINPOINT TEST X . |
| B11E2:12 | Rear HVAC Status Lamp #3: Circuit Short to Battery | GO to PINPOINT TEST X . |
| B11E2:14 | Rear HVAC Status Lamp #3: Circuit Short to Ground or Open | GO to PINPOINT TEST X . |
| B11E3:00 | Rear HVAC Damper Motor: No Sub Type Information | GO to PINPOINT TEST U . |
| B11E3:11 | Rear HVAC Damper Motor: Circuit Short to Ground | GO to PINPOINT TEST U . |
| B11E3:12 | Rear HVAC Damper Motor: Circuit Short to Battery | GO to PINPOINT TEST U . |
| B11E4:00 | Rear Air Distribution Damper Motor: No Sub Type Information | GO to PINPOINT TEST V . |
| B11E4:11 | Rear Air Distribution Damper Motor: Circuit Short to Ground | GO to PINPOINT TEST V . |
| B11E4:12 | Rear Air Distribution Damper Motor: Circuit Short to Battery | GO to PINPOINT TEST V . |
| B11E5:11 | Left HVAC Damper Position Sensor: Circuit Short to Ground | GO to PINPOINT TEST P . |
| B11E5:15 | Left HVAC Damper Position Sensor: Circuit Short to Battery or Open | GO to PINPOINT TEST P . |
| B11E6:11 | Right HVAC Damper Position Sensor: Circuit Short to Ground | GO to PINPOINT TEST P . |
| B11E6:15 | Right HVAC Damper Position Sensor: Circuit Short to Battery or Open | GO to PINPOINT TEST P . |
| B11E7:11 | Air Distribution Damper Position Sensor: Circuit Short to Ground | GO to PINPOINT TEST K . |
| B11E7:15 | Air Distribution Damper Position Sensor: Circuit Short to Battery or Open | GO to PINPOINT TEST K . |
| B1A61:11 | Cabin Temperature Sensor Circuit Open: Circuit Short to Ground | GO to PINPOINT TEST D . |
| B1A61:15 | Cabin Temperature Sensor Circuit Open: Circuit Short to Battery or Open | GO to PINPOINT TEST D . |
| B1A63:11 | Right Solar Sensor: Circuit Short to Ground | GO to PINPOINT TEST F . |
| B1A63:15 | Right Solar Sensor: Circuit Short to Battery or Open | GO to PINPOINT TEST F . |
| B1A64:11 | Left Solar Sensor: Circuit Short to Ground | GO to PINPOINT TEST F . |
| B1A64:15 | Left Solar Sensor: Circuit Short to Battery or Open | GO to PINPOINT TEST F . |
| B1A68:11 | Ambient Temperature Sensor: Circuit Short to Ground | GO to PINPOINT TEST E . |
| B1A68:15 | Ambient Temperature Sensor: Circuit Short to Battery or Open | GO to PINPOINT TEST E . |
| B1B71:11 | Evaporator Temperature Sensor: Circuit Short to Ground | GO to PINPOINT TEST G . |
| B1B71:15 | Evaporator Temperature Sensor: Circuit Short to Battery or Open | GO to PINPOINT TEST G . |
| B1B7D:11 | Rear Air Distribution Actuator: Circuit Short to Ground | GO to PINPOINT TEST V . |
| B1B7D:15 | Rear Air Distribution Actuator: Circuit Short to Battery or Open | GO to PINPOINT TEST V . |
| C1B14:11 | Sensor Supply Voltage A: Circuit Short to Ground | GO to PINPOINT TEST C . |
| C1B14:12 | Sensor Supply Voltage A: Circuit Short to Battery | GO to PINPOINT TEST C . |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | REFER to MODULE COMMUNICATIONS NETWORK article to diagnose lost communication with the Smart Junction Box (SJB). |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Module: No Sub Type Information | REFER to MODULE COMMUNICATIONS NETWORK article to diagnose lost communication with the IPC module. |
| U0256:00 | Lost Communication With Front Controls Interface Module (FCIM) "A": No Sub Type Information | REFER to MODULE COMMUNICATIONS NETWORK article to diagnose lost communication with the FCIM . |
| U0422:68 | Invalid Data Received From Body Control Module: Event Information | This DTC can set due to a fault in the SJB or because the SJB is unable to communicate over the Controller Area Network (CAN) bus. CARRY OUT a self-test of the SJB . If the scan tool indicates that the SJB is not responding, REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the network communication concern. If SJB DTCs are present, REFER to MULTIFUNCTION ELECTRONIC MODULE article. |
| U0423:68 | Invalid Data Received From Instrument Panel Cluster Control Module: Event Information | This DTC can set due to a fault in the IPC or because the IPC is unable to communicate over the CAN bus. CARRY OUT a self-test of the IPC . If the scan tool indicates that the IPC is not responding, REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the network communication concern. If IPC DTCs are present, REFER to INSTRUMENTATION SYSTEM, MESSAGE CENTER & WARNING CHIMES article to diagnose the IPC system fault. |
| U3000:41 | Control Module: General Checksum Failure | INSTALL a new HVAC module. REFER to CLIMATE CONTROL article. |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to PINPOINT TEST H . |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to PINPOINT TEST H . |
| All Other DTCs | - | REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULE article. |
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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