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.
2013 Ford Escape SFACTORY OEM SERVICE PROCEDURE
Accessory Protocol Interface Module (APIM)
ACCESSORY PROTOCOL INTERFACE MODULE (APIM) DTC CHART
| DTC | Description | Action |
|---|---|---|
| B1252:04 | USB Port: System Internal Failure | GO to PINPOINT TEST J . |
| B1252:11 | USB Port: Circuit Short to Ground | GO to PINPOINT TEST J . |
| B12B8:04 | USB # 2 Port: System Internal Failure |
NOTE:
This DTC refers to USB port #2 on the APIM itself, which is not used. INSPECT the APIM USB port #2 for damage and REMOVE any debris. CLEAR the DTCs. REPEAT the self-test. If DTC B12B8:04 is retrieved again, INSTALL a new APIM. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM)
. |
| B12B8:11 | USB # 2 Port: Circuit Short to Ground |
NOTE:
This DTC refers to USB port #2 on the APIM itself, which is not used. INSPECT the APIM USB port #2 for damage and REMOVE any debris. CLEAR the DTCs. REPEAT the self-test. If DTC B12B8:11 is retrieved again, INSTALL a new APIM. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM)
. |
| B1D79:01 | Microphone Input: General Electrical Failure | GO to PINPOINT TEST X . |
| B1D79:11 | Microphone Input: Circuit Short to Ground | GO to PINPOINT TEST X . |
| B1D79:12 | Microphone Input: Circuit Short to Battery | GO to PINPOINT TEST X . |
| B1D79:13 | Microphone Input: Circuit Open | GO to PINPOINT TEST X . |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to PINPOINT TEST Q . |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information | GO to PINPOINT TEST R . |
| U0257 :00 | Lost Communication With Front Controls/Display Interface Module: No Sub Type Information | GO to PINPOINT TEST T . |
| U0423:00 | Invalid Data Received From Instrument Panel Control Module: No Sub Type Information | REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES to retrieve and follow DTCs present in the IPC. |
| U2100:00 | Initial Configuration Not Complete: No Sub Type Information | CHECK vehicle service history for recent service actions related to this module. This DTC sets due to incomplete or incorrect PMI procedures. If there have been recent service actions with this module, REPEAT/PERFORM the APIM programming as directed by the scan tool. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) PROGRAMMING . If there have been no recent service actions, INSTALL a new module to correct the failure to retain configuration data. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . |
| U2101:00 | Control Module Configuration Incompatible: No Sub Type Information | CHECK vehicle service history for recent service actions related to this module. This DTC sets due to incomplete or incorrect PMI procedures. If there have been recent service actions with this module, REPEAT/PERFORM the APIM programming as directed by the scan tool. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) PROGRAMMING . If there have been no recent service actions, INSTALL a new module to correct the failure to retain configuration data. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . |
| U3000:04 | Control Module: System Internal Failure | GO to PINPOINT TEST Y . |
| U3000:41 | Control Module: General Checksum Failure | CLEAR the DTCs. REPEAT the self-test. If DTC U3000:41 is still present, INSTALL a new APIM. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . |
| U3000:42 | Control Module: General Memory Failure | CLEAR the DTCs. REPEAT the self-test. If DTC U3000:42 is still present, INSTALL a new APIM. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . |
| U3000:88 | Control Module: Bus Off | CLEAR the DTCs. REPEAT the self-test. If DTC U3000:88 is still present, INSTALL a new APIM. REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to PINPOINT TEST U . |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to PINPOINT TEST V . |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.