TT 20 23 02

Technical Tip
20-23-02TT - MIL ON, DTC P3044 Stored in Engine/Motor Control Module J623-
Transaction No:
2069539/1
Release date:
2/16/2023
Condition
ATTENTION:
THIS IS A TECH TIP, NOT A TECHNICAL BULLETIN.
TECH TIPS ARE NOT ASSOCIATED WITH WARRANTY CLAIMING.
Applicable Vehicles
Model(s)
Year
Eng. Code
Trans. Code
VIN Range From
VIN Range To
Touareg
2011-2016
3.0L TDI
(CATA, CNRB)
All
All
All
Revision Table
Instance Number
Published Date
Version Number
2069539/1
2/16/2023
20-23-02
Reason For Update
Original publication.
Technical Background
DTC P3044 can be triggered by low battery voltage with engine running. Check expanded ambient conditions
"Voltage Terminal 30" when fault code set.
DTC memory entry
Number:
Error type 2:
Symptom:
Status:
P304400: Fuel pump Short circuit
active/static
10062
11101101
-Standard ambient conditions:
Date:
Time:
Mileage (DTC):
Priority:
Frequency counter:
Elimination counter / driving cycle:
4/11/21
1:30:42 PM
189525
2
1
255
1
Technical Tip
20-23-02TT - MIL ON, DTC P3044 Stored in Engine/Motor Control Module J623-
Transaction No:
2069539/1
Release date:
2/16/2023
Expanded ambient conditions:
Engine rpm
Normed load value
Vehicle speed
Coolant temperature
Intake air temperature
Ambient air pressure
Voltage terminal 30
828.0
27.05882403
0
26
24
980
11.22
20 96 28 10 6C 03 16 2D 0B 9E 11
Dynamic environmental data
39 02 B5 16 46 11 B9 10 0D 00 10
6D 00 05 16 25 0B 96
Unlearning counter according OBD
40
Engine status
COENG_RUNNING
Param_TestProgrCoEngStCOMPUVERBUBYTE 3
Fuel temperature
24.26
Mean injection quantity
6.93
Activation of presupply pump duty cycle
45.37
Selected gear
0 (0 0 0 0 0 0 0 0)
--0.5
Outside temperature
23.46
1/min
%
km/h
°C
°C
mbar
V
°C
mg/stroke
%
Nm
°C
Service
Check Battery using GRX3000 and replace as needed.
Additional Information
© 2023 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on
the latest information available at the time of printing and is subject to the copyright and other intellectual property
rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make
changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may
these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.
2