TT-06-63
2004-2005 Touareg, Gearbox DTCs
DTC P0753 (0025 Solenoid Valve N88 Open / Short in Address Word 02 “Gearbox Electronics” can occur on MY 2004 and certain early MY 2005 Touareg vehicles. The root cause of the complaint is that the harness is too short, causing wire strands to break internally within the harness near the T14e connector. Do NOT replace the TCM or the Valve Body for this DTC; instead, perform the following steps:
* Disconnect the T14e connector from the transmission
* Back out pin 1 (yellow) from the T14e connector about 12 inches above the transmission connector
* Butt-splice a new wire from the VAS 1978 Wiring Repair Kit, ensuring an additional 1/2 inch of extra overall harness length.
* Re-pin the wire to the T14e connector and re-attach the harness connector to the transmission.