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Old 12th August 2017, 07:03 PM
North2007 North2007 is offline
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Default 4.0 TDI Turbo Module 2 Fault Code - Limp Mode

Guys, I had my actuator refurbished 2 months ago (complete with warrant) . It throwing up the following codes. Is it possible the codes are relating to another problem (listed in special notes of Ross Tech)? I hate the thought of having to replace the turbo (I did the drives side - it a killer of a job!).

18361 - Turbocharger Control Module 2
P1953 - 000 - Defective - MIL ON
Freeze Frame:
RPM: 0 /min
Torque: 19.5 Nm
Speed: 0.0 km/h
Duty Cycle: 0.4 %
Voltage: 11.86 V
Duty Cycle: 94.5 %
Mass Air / Rev.: 0.0 mg/str
Absolute Pres.: 999.6 mbar

19805 - Control Circuit for Controller for Turbocharger 2 (J725)
P3349 - 002 - Electrical Malfunction - Intermittent
Freeze Frame:
RPM: 0 /min
Torque: 27.3 Nm
Speed: 0.0 km/h
Duty Cycle: 0.4 %
Voltage: 11.78 V
Duty Cycle: 94.5 %
Mass Air / Rev.: 0.0 mg/str
Absolute Pres.: 979.2 mbar
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Old 13th August 2017, 08:47 AM
North2007 North2007 is offline
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Update: drove 20 mins this morning no faults or limp mode. Could someone advise where the earth connection would be for the turbo 2 actuator? I'm thinking it could just be a bad connection.
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Old 17th August 2017, 09:30 AM
carmel120 carmel120 is offline
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Hi did you use vcds to control the actuator to see if its working ok, there is a bulletin on here somewhere to service the actuator on the 4.0tdi.
these turbos are variable vain type so it could be sticky vains on the turbo do I google search on sticky vain turbos you do get diesel additives for this.

cheers trev
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Old 17th August 2017, 07:32 PM
North2007 North2007 is offline
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Sent unit back and it was repaired again without any extra cost. Appears to be fault free today - so far.
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