Symptom Chart: Communication Network
WARNING: This page is about a different car, the 2023 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods
| Condition | Possible Sources | Actions |
|---|---|---|
| The vehicle does not start with the diagnostic scan tool connected to the remote DLC and/or multiple malfunction indicators are only on when the diagnostic scan tool is connected to the remote DLC | Refer to the Pinpoint Test | GO to Pinpoint Test AJ |
| No HS-CAN1 communication, all modules are not responding | Refer to the Pinpoint Test | GO to Pinpoint Test AE |
| No HS-CAN2 communication, all modules are not responding | Refer to the Pinpoint Test | GO to Pinpoint Test AF |
| No HS-CAN3 communication, all modules are not responding | Refer to the Pinpoint Test | GO to Pinpoint Test AG |
| No HS-CAN4 communication, all modules are not responding | Refer to the Pinpoint Test | GO to Pinpoint Test AH |
| No MS-CAN communication, all modules are not responding | Refer to the Pinpoint Test | GO to Pinpoint Test AI |
| The PCM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test A |
| The ABS module does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test B |
| The RCM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test C |
| The TCM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test D |
| The OCSM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test E |
| The SCCM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test F |
| The IPC does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test G |
| The BCM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test H |
| The PAM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test H |
| The ACM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test I |
| The DACMC does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test I |
| The IPMA does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test J |
| The APIM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test K |
| The DSP does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test L |
| The TCU does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test M |
| The RTM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test N |
| The PSCM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test O |
| The DSM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test P |
| The SCME does not respond to the diagnostic scan tool (integrated with the DSM) | Refer to the Pinpoint Test | GO to Pinpoint Test P |
| The DDM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test Q |
| The PDM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test R |
| The SODL does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test S |
| The SODR does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test T |
| The HUD module does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test U |
| The VDM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test V |
| The FCIM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test W |
| The BCMB does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test X |
| The HSWM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test Y |
| The MRCMA does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test Z |
| The MRCMB does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test AA |
| The GSM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test AB |
| The ICM does not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test AC |
| All networks do not respond to the diagnostic scan tool | Refer to the Pinpoint Test | GO to Pinpoint Test AD |
| No power to the remote DLC | Refer to the Pinpoint Test | GO to Pinpoint Test AJ |