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.
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HOMESERVICE MANUALSMERCURY2010MARINER PREMIER, 2.5 7, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDTC INDEX (GLASS, FRAMES & MECHANISMS - MODULE CONFIGURATION)INFORMATION & ENTERTAINMENT SYSTEMS DTCSACCESSORY PROTOCOL INTERFACE MODULE (APIM) DTC CHART
2010 Mercury Mariner Premier, 2.5 7, FWD
Accessory Protocol Interface Module (APIM) DTC Chart
2010 Mercury Mariner Premier, 2.5 7, FWDSECTION Accessory Protocol Interface Module (APIM) DTC Chart
Accessory Protocol Interface Module (APIM) DTC Chart
| DTC | Description | Action |
|---|---|---|
| B1201:1C | Steering Wheel Audio Switch Pack 2: Circuit Voltage Out of Range | GO to PINPOINT TEST F . |
| B1201:63 | Steering Wheel Audio Switch Pack 2: Circuit/Component Protection Time-Out | GO to PINPOINT TEST F . |
| B1252:04 | USBÂ Port: System Internal Failure | GO to PINPOINT TEST X . |
| B1252:11 | USBÂ Port: Circuit Short to Ground | GO to PINPOINT TEST X . |
| B1D79:01 | Microphone Input: General Electrical Failure | GO to PINPOINT TEST U . |
| U0100:00 | Lost Communication With ECM/PCM: No Sub Type Information | GO to PINPOINT TEST AI . |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to PINPOINT TEST AA . |
| U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | GO to PINPOINT TEST AH . |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IPCÂ ) Control Module: No Sub Type Information | GO to PINPOINT TEST AH . |
| U016A:00 | Lost Communication With Global Positioning System (GPSMÂ ) Module: No Sub type Information | GO to PINPOINT TEST AM . |
| U0184:00 | Lost Communication With Radio: No Sub Type Information | GO to PINPOINT TEST AS . |
| U0255:00 | Lost Communication With Front Display Interface Module: No Sub Type Information | GO to PINPOINT TEST AQ . |
| U0256:00 | Lost Communication With Front Controls Interface Module: No Sub Type Information | GO to PINPOINT TEST AP . |
| U0422:00 | Invalid Data Received From Body Control Module: No Sub Type Information | RETRIEVE and FOLLOW other DTCs present in the Accessory Protocol Interface Module (APIM) or Smart Junction Box (SJB). |
| U0423:00 | Invalid Data Received From Instrument Panel Control Module: No Sub Type Information | RETRIEVE and FOLLOW other DTCs present in the APIMÂ or Instrument Cluster (IC). |
| U046B:00 | Invalid Data Received From Global Positioning System Module: No Sub Type Information | RETRIEVE and FOLLOW other DTCs present in the APIMÂ or Global Positioning System Module (GPSM). |
| U0485:00 | Invalid Data Received From Radio: No Sub Type Information | RETRIEVE and FOLLOW other DTCs present in the APIMÂ or Audio Control Module (ACM). |
| U2100:00 | Initial Configuration Not Complete: No Sub Type Information | REFER to MODULE CONFIGURATION . |
| U2101:00 | Control Module Configuration Incompatible: No Sub Type Information | REFER to MODULE CONFIGURATION . |
| U3000:04 | Control Module: System Internal Failure | CLEAR the DTCs. REPEAT the self-test. If DTC U3000:04 is still present, INSTALL a new APIMÂ . REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . REPEAT the self-test. |
| U3000:41 | Control Module: General Checksum Failure | CLEAR the DTCs. REPEAT the self-test. If DTC U3000:41 is still present, INSTALL a new APIMÂ . REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . REPEAT the self-test. |
| U3000:42 | Control Module: General Memory Failure | CLEAR the DTCs. REPEAT the self-test. If DTC U3000:42 is still present, INSTALL a new APIMÂ . REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . REPEAT the self-test. |
| U3000:88 | Control Module: Bus Off | REFER to MODULE COMMUNICATIONS NETWORK . |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to PINPOINT TEST AG . |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to PINPOINT TEST AF . |
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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.