Symptom Chart(s)
WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart: Communication Network
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
Symptom Chart
| Condition | Possible Sources | Actions |
|---|---|---|
| The vehicle does not start with the scan tool connected to the DLC and/or multiple malfunction indicators are only on when the scan tool is connected to the DLC | Refer to the Pinpoint Test | GO to Pinpoint Test AE |
| The PCM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test A |
| The ABS module does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test B |
| The RCM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test C |
| The FCDIM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test D |
| The OCSM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test E |
| The SASM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test F |
| The IPC does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test G |
| The ICM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test H |
| The BCM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test I |
| The HVAC module does not respond to the scan tool (DATC only) | Refer to the Pinpoint Test | GO to Pinpoint Test J |
| The ACM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test K |
| The DSP does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test L |
| The DACMC does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test M |
| The DDM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test N |
| The PDM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test O |
| The IPMA does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test P |
| The SODL or SODR does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test Q |
| The GPSM does not respond to the scan tool (except North America with touchscreen) | Refer to the Pinpoint Test | GO to Pinpoint Test R |
| The PAM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test S |
| The APIM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test T |
| The FCIM does not respond to the scan tool | Refer to the Pinpoint Test | For vehicles equipped with touchscreen, GO to Pinpoint Test U For vehicles not equipped with touchscreen, the FCIM does not communicate on the network. |
| The RFA module does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test V |
| The TCM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test W |
| The AWD module does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test X |
| The PSCM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test Y |
| The GFM2 does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test Z |
| The HCM does not respond to the scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test AA |
| No HS-CAN communication, all modules are not responding | Refer to the Pinpoint Test | GO to Pinpoint Test AB |
| No MS-CAN communication, all modules are not responding | Refer to the Pinpoint Test | GO to Pinpoint Test AC |
| No I-CAN communication, all modules are not responding | Refer to the Pinpoint Test | If the IPC does not pass a network test, DIAGNOSE the IPC first. GO to Pinpoint Test G If the IPC passes a network test, GO to Pinpoint Test AD |
| No power to the DLC | Refer to the Pinpoint Test | GO to Pinpoint Test AE |