01314
From Ross-Tech Wiki
01314 - Engine Control Module
01314 - Engine Control Module: No Communications
Possible Causes
- CAN-Databus Wiring/Connectors from/to Engine Control Module faulty
- Fault(s) stored in Engine Control Module
- Engine Control Module recently flashed or re-mapped
Possible Solutions
- Check CAN-Databus Wiring/Connectors from/to Engine Control Module
- Check Measuring Value Blocks (MVB)
- Usually Measuring Value Blocks (MVB) 125+ show the current Communication Status
Special Notes
- When found in the (1K) chassis with 2.5L gas engine using a MAF (G70) sensor, check the T121/62 (Red/Black) traced power wire to the ECM. If power is missing or a voltage drop is present that wire may be damaged anywhere between 6" and 18" from the connector itself. This will result in no communication in addition to a no-start.
- Based on 2.5L Jetta feedback over the years a majority look like this example however some are damaged further away per this example: with the close-up and distant views.
01314 - Engine Control Module: Check DTC Memory
Possible Causes
- Fault(s) stored in Engine Control Module
Possible Solutions
- Check Engine Control Module for Fault Codes
Special Notes
- Engine Control Module stored a Code which influences other Control Modules Functionality.
- To clear this Fault Code you will need to correct the Problem in the Engine Control Module first.