ESP AUDI A4 1999 B5 / 1.G Instrument Cluster OBD From Model Year 2000 Workshop Manual

01-82
Details about the instrument cluster

Operating instructions Audi A4 or Audi S4 The instrument cluster is controlled by a
microprocessor and has extensive On Board
Diagnostic (OBD) capabilities. If malfunctions
occur in any of the system components,
corresponding Diagnostic Trouble Codes (DTC)
are stored in the DTC memory of the instrument
cluster. These can then be identified using the
VAG1551 or VAG1552 Scan Tool (ST).

Note:
The description in this repair manual only refers
to the VAG1551 Scan Tool (ST).
Pa
ge 4 of 99 Instrument cluster with lon
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gnostic
(OBD
) (from m.
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01-94

VAG 1551 scan tool display
Possible causes
Corrective action
00562
Oil level thermal sensor -
G266-

Open circuit/short circuit to
B+
Short circuit to Ground
Implausible signal
Open circuit or short circuit
between oil level thermal sensor
-G266- and instrument cluster Oil level thermal sensor -G266-
faulty -G266- faulty Electronic part in sensor faulty- Locate malfunction using wiring diagram
- Repair open circuit
- Oil level thermal sensor -G266- faulty Replace -
G266-
00667
Outside temperature signal

Open circuit/short circuit to
B+
Short circuit to Ground
implausible signal (is
indicated incorrectly and
must be disregarded)
Open circuit or short circuit
between instrument cluster and
A/C control head -E87- A/C control head -E87- faulty
Repair Manual, Heating & AirConditioning, Repair
Group 01
- Locate malfunction using wiring diagram
- Repair open circuit
- A/C system OBD
00668
Vehicle voltage, terminal 30

Voltage supply too low
Battery was disconnectedOpen circuit or short circuit to a
control module or sensor - Perform automatic test sequence in order to
determine the control module responsible for the
DTC check voltage supply of malfunctioning
control module
- Locate malfunction using wiring diagram
Pa
ge 18 of 99 Instrument cluster with lon
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gnostic
(OBD
) (from m.
y. 2000
)
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01-133

Adaptation (scan tool function 10)

Individual functions are called up by entering the
appropriate adaptation channel numbers (listed
in the adaptation table Page 01
-134
).

Notes:

Using measuring value blocks 10, 11, 12 and
15, the values that need to be transferred to the
new instrument cluster can be read out before
replacement.
Adaptation channels 42, 43, and 44 (see
measuring value blocks 013 and 014 Page 01
-125
and Page 01
-126
) must be adapted
according to the oil quality (measuring value
block 15 Page 01
-127
).

Adaptation channels 60, 61, and 62 are only
needed when the instrument cluster
communicates with the corresponding BUS
system..
Measuring value blocks 125 and 126 Page 01
-129
and Page 01
-130
indicate the
components that are part of the powertrain
data-BUS.

Measuring value block 130 Page 01
-131

Pa
ge 68 of 99 Instrument cluster with lon
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gnostic
(OBD
) (from m.
y. 2000
)
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01-156

Channel 30 Adaptation 128 Tank sender - 1 3-

Indicated on display: Adaptation value is displayed, for example 128.
Notes:
"128" is the adaptation value for the standard resistance range for the
fuel gauge sender as set by the factory. The resistance value for the fuel gauge sender resistance range can
be adjusted by 8 Ohm to give an adaptation value between 120 and
136. If the value "128" was changed due to a customer complaint, the
changed value must be transferred when replacing instrument cluster.
-
Press button.
Channel 30 Adaptation 128 Input adaptation value XXXXX

Indicated on display:
Example:
Desired input value: 132
Keypad input: 00132 - Input desired correction value using scan tool keypad, filling initial
positions with "0" and watch how the display responds.
Channel 30 Adaptation 128
Q
Input adaptation value 00132

Indicated on display:
- Press -Q- button to confirm input.
Pa
ge 93 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
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01-159

Channel 35 Adaptation 0
- 1 3-

Indicated on display: Adaptation value is displayed, for example 0.
Notes:
The adaptation value of 0 corresponds to the value set at the factory
for the oil pressure warning if the oil pressure drops below 1.2 bar at
1500 rpm. The adaptation can be performed in four steps (0-1000).The adaptation value of "250" changes the engine speed threshold to
1750 rpm. If the value "0" was changed due to a customer complaint, the
changed value must be transferred when replacing instrument cluster.
-
Press button.
Channel 35 Adaptation 0 Input adaptation value XXXXX

Indicated on display:
- Input adaptation value using keypad, filling initial positions with "0", for
example, 00250.
Channel 35 Adaptation 0
Q
Input adaptation value 00250

Indicated on display:
- Press -Q- button to confirm input.
Pa
ge 96 of 99 Instrument cluster with lon
g service life, On Board Dia
gnostic
(OBD
) (from m.
y. 2000
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.EE01.01.2