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Technical Service Bulletin

Topic 35 Gearbox Malfunction Warning, DTC POC2900 in the TCM
Market area United States 444 Volkswagen of America, Inc. (6444)
Brand Audi

Transaction No. | 2050723/7

Level EH

Status Released for publishing

Release date Mar 21, 2025

Diagnostic trouble codes

Diagnostic address Diagnostic trouble code Fault Storage
symptom state
0002 - Transmission POC2900: Auxiliary Transmission Fluid Pump Driver :
. on static
electronics Circuit Performance
New customer code
Object of complaint Complaint type Position
transmission -> transmission control operation functionality
transmission -> operation, shift and power distribution control functionality
transmission -> power distribution, transmission of power functionality
information, navigation, communication, entertainment -> driver functionality -> activates
information system (DIS, MFI, MMI) -> text display y
information, navigation, communication, entertainment -> malfunction . : .
: wo : : functionality -> activates
display symbols -> transmission malfunction display
transmission -> power distribution, transmission of power -> transmission | functionality -> operation
of power -> transmission of power in transmission sequence incorrect

Vehicle data
A3 USA MY17-18 with DQ381, PR Code OlJ

Sales types

Type|MY |Brand| Designation | Engine code |Gearbox code| Final drive code
8V* |2017|A * * *

8V* |2018|A * * *

Chassis numbers

Manufacturer | Filler| Type | Filler} MY|Factory|From |To Prod from| Prod to

WAU *

FF |* H |* 000001 |999999

WAU *

FF |* J |* 000001 |030111

PR numbers

PR numbers
?:with OlJ

Documents

Document name

master.xml

repair_instructions.pdf

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Technical Service Bulletin Transaction No.: 2050723/7
35 Gearbox Malfunction Warning, DTC POC2900 in the TCM Release date: Mar 21, 2025
Condition

REVISION HISTORY

Revision |Date Purpose

8 - Revised Condition (Added DTC)

7 05/22/2024 | Revised header (Added VIN break)

6 03/12/2024 | Revised Service (Note removed)

You should not use the Guided Fault Finding test plan to complete this TSB. It is therefore not necessary to charge
the battery.

Customer states:

* The “Gearbox Malfunction’/"Gearbox Fault” message has appeared in the Drivers Information Screen (DIS).
and/or

* The gearbox warning lamp is lit up in the driver information system.

and/or

* The gearbox is in emergency running mode; it is only possible to use gears 1-3-5-7 or only possible to use
gears 2-4-6.

Workshop findings:
* One or more of the customer statements can be reproduced.

One or more of the following DTC may be logged (intermittent/static) in the transmission control module (TCM), -
J217- (address word 0002):

* DTC P0C2900 (Auxiliary Transmission Fluid Pump Driver Circuit Performance)
and/or

* DTC P175E00 - Clutch 1 closes unintentionally

and/or

* DTC P176F00 — Clutch 2 closes unintentionally

and/or

* DTC P175D00 —- Clutch 1 opens unintentionally

and/or
« DTC P176E00 — Clutch 2 opens unintentionally

and/or

* DTC P072C00 - Gear 1 not adjustable

and/or

* DTC P176A00 - Gear positioner 1 cannot be regulated
and/or

« DTC P176B00 - Gear positioner 2 cannot be regulated
and/or

* DTC P176C00 - Gear positioner 3 cannot be regulated
and/or

« DTC P176D00 — Gear positioner 4 cannot be regulated
and/or

¢ DTC P072B00 - Gear R cannot be regulated

and/or

* DTC P081000 — Clutch control malfunction

and/or

¢ DTC P060700 — Control module implausible

and/or

¢ DTC P189900 — Clutch 2 function restriction

In addition to the event memory entries listed, various other event memory entries may also be logged in diagnostic
address 0002 — Transmission control module.

Technical Background

Component related issue of auxiliary hydraulic pump 1 (-V475-) for gear oil (Figure 1, item 1).

Figure 1. OGC Gearbox Components.

Legend for figure 1:

Item 1: auxiliary hydraulic pump 1 for gearbox oil (V475)

Item 2: electrical connection for auxiliary hydraulic pump 1 for gearbox oil (V475)
Item 3: electric motor for auxiliary hydraulic pump 1 for gearbox oil (V475)