P0865 code
 

06 Jetta 1.9L TDi gls,P0600 and P0865 codes,TCM Communication circuit low, need diagram, all fuses ok

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EOBD II Error Code: P0865

Fault Location:
Transmission Control Module (TCM) (J217), Communication - Low Input/Short Circuit to Earth

Possible Cause:
Fuse(s).
Wiring/Connector(s) short to earth.
Transmission Control Module (TCM) (J217).

Possible Solutions:
Check/Replace Fuse(s).
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).

EOBD II Error Code: P0600

Fault Location:
Serial Communication Link - Malfunction/Message Missing

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) Non Emission Fault - No warning light.

Wiring/Connector(s).
Connected system.
Trouble code(s) stored in other system.
Low battery voltage.
Engine Control Module (ECM).

Possible Solution:
Check Can-Bus matching resistor.
Check and charge battery.

Description:
The Engine Control Module (ECM) communicates with all Data Bus-capable control modules via a CAN Data Bus.
These Data Bus-capable control modules are connected via two Data Bus wires which are twisted together (CAN_High and CAN_Low), and exchange information (messages). Missing information on the Data Bus is recognized as a malfunction and stored.
Trouble-free operation of the CAN-Bus requires that it have a terminal resistance. This central terminal resistor is located in the Engine Control Module (ECM).

As taken from my new EOBD II Fault Codes Software

These Data Bus-capable control modules are connected via two Data Bus wires which are twisted together (CAN_High and CAN_Low), and exchange information (messages). Missing information on the Data Bus is recognized as a malfunction and stored.