Difference between revisions of "01314"
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* CAN-Databus Wiring/Connectors from/to Engine Control Module faulty | * CAN-Databus Wiring/Connectors from/to Engine Control Module faulty | ||
* Fault(s) stored in Engine Control Module | * Fault(s) stored in Engine Control Module | ||
| + | * Engine Control Module recently flashed or re-mapped | ||
==== Possible Solutions ==== | ==== Possible Solutions ==== | ||
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* Check Measuring Value Blocks (MVB) | * Check Measuring Value Blocks (MVB) | ||
** Usually Measuring Value Blocks (MVB) 125+ show the current Communication Status | ** 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 [http://wiki.ross-tech.com/wiki/images/4/48/Damaged_T121-62_2007_Jetta_2.5L_BGQ_ECM.jpg this example] however some are damaged further away per this example: [http://wiki.ross-tech.com/wiki/images/4/4c/Damaged_T121-62_2006_Jetta_2.5L_ECM.jpg with the close-up and distant views]. | ||
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Latest revision as of 14:16, 18 April 2018
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.