01314 & 16486 codes

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


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.

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16486/P0102/000258 - Mass Air Flow (MAF) (G70): Signal too Low
Possible Symptoms
  • Probably no serious malfunctions
  • Loss of power

Possible Causes
  • Wiring and/or connections (short circuit?)
  • Mass Air Flow (MAF) (G70) defective

Possible Solutions
  • Check wiring and connections
  • Check / Replace Mass Air Flow (MAF) (G70)

Special Notes
  • In MY 1995-2002 (?) in Europe at VW-diesel-cars G70 had the bad reputation of slowly losing his performance, causing loss of power. It's not a matter of defective or breaking down, but it is filthy / dirty (not easy to clean). You can check functionality by making a log in [01-engine], [meas.blocks-08], group 003 (3e gear, full throttle, from 1700-4000rpm)



[EDIT]
Referenced from RossTech Wiki Page
[/EDIT]
 
Last edited:
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