AUDI A4 1995 B5 / 1.G AFC Engine On Board Diagnostic Multiport Fuel Injection User Guide

01-7

VAG 1551/1552 Scan Tool (ST),
connecting and selecting Engine
Electronics address word 01


Fuses for engine electronics OK
Fuel pump relay OK
Ground connections OK page 01
-5

Connecting-m.y. 1996
- Open back seat ash tray (center console) and remove cover for data
link connector.

- Connect VAG 1551/1552 scan tool with adapter cable VAG 1551/3 to
data link connector.
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01-8

Connecting-m.y. 1997
Note:
The DLC is located below the driver's knee bar to
the left of the steering wheel.

All vehicles - Connect VAG1551 or VAG1552 Scan Tool (ST) with VAG1551/3
adapter to Data Link Connector (DLC).
V.A.G On Board Dia
gnostic
(OBD
) HELP
1 - Rapid data transfer2 - Blink code output

Indicated on display1) 1) Operating modes 1 and 2 are displayed alternately.
Notes: If there is no display, check voltage supply for data link connector:
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Electrical Wiring Diagrams, Troubleshooting & Component Locations Additional operating instructions can be obtained by using the VAG
1551 scan tool HELP button. The button is used to advance to the next program step.
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01-9

For the function:

02: Check DTC
Memory - Let engine idle, or, crank
engine with starter for at
least 5 seconds without
switching ignition off
03: Output
Diagnostic
Test Mode - Switch ignition on
04: Basic Setting
- Let engine run or switch
ignition on
07: Code Control
Module - Switch ignition on
08: Read
Measuring
Value Block - Let engine run or switch
ignition on

- Switch printer on with PRINT button (indicator
light in the button lights up).

- Press button -1- for "rapid data transfer"
operating mode.
Rapid data transfer
HELP
Insert address word XX

Indicated on display
Note:
After inserting address word 00 and pressing -Q- button to confirm input,
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an automatic test sequence is carried out (checks DTC memory of all
systems with rapid data transfer).
- Press buttons -0- and -1- to insert the "Engine Electronics" address
word 01.
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01-10

Rapid data transfer
Q
01 - Engine Electronics

Indicated on display
- Press -Q- button to confirm input.
Rapid data transfer Scan Tool sends address word 01

Indicated on display
_________________________________________________________
Rapid data transfer
HELP
Control module does not answer

If the following is shown on the display:
Notes:
Electrical Wiring Diagrams, Troubleshooting & Component Locations - A list of possible malfunction causes can be printed out by pressing the
HELP button.
Check data link connector/engine control module wiring connection:Engine control module faulty Diagnostic Trouble Code (DTC) table,
page 01
-26
.
Rapid data transfer
HELP
Error in communication link

If the following is shown on the display:
Notes:
Electrical Wiring Diagrams, Troubleshooting & Component Locations
On vehicles with several On Board Diagnostic (OBD) systems, check
wiring connection between the individual systems: For vehicles with only MFI (Engine Electronics) On Board Diagnostic
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(OBD) capability, the engine control module is faulty Diagnostic
Trouble Code (DTC) table, page 01
-26
.
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01-11

Rapid data transfer
HELP
K wire not switching to Ground

If one of the following two problems is shown on the display
Rapid data transfer HELPK wire not switching to B+

Note:
Check data link connector/engine control module wiring connection:
Electrical Wiring Diagrams, Troubleshooting & Component Locations
_________________________________________________________ - A list of possible malfunction causes can be printed out by pressing the
HELP button. - After the malfunction cause is repaired, insert address word 01 again
and press -Q- button to confirm input.
8D0906266 2.8l V6/2V MFI OBD2
D01
Codin
g 01051
WSC 06388

The control module identification and the coding are shown on the
display:
Engine control module replacement part no. 8D0906266
For current engine control module version Parts catalog
Engine displacement: 2.8 liters Engine construction type: V-engine, 6-cylinderValves per cylinder: 2 valvesFuel injection system: Multiport Fuel Injection (MFI)Engine control module software version: OBD2, EPROM-status
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of control module
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01-12

Engine control module hardware and software
version: D_ _ Control module program status
Engine control module coding: 01051
Diagnostic Trouble Code (DTC) table, page 01
-247
.

VAG plant number: WSC 06388 (where the
VAG 1551 scan tool was used for the last
coding and/or adaptation)

Notes:
If the engine control module version that
corresponds to the vehicle is not displayed,
replace engine control module page 01
-265
.
Incorrect engine control module coding leads to:

Driving performance problems (jerky shifting,
abrupt load change, etc.)
Increased fuel consumption
Elevated exhaust gas values
Reduction in transmission service life

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) - Multi
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jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1