ECU AUDI A8 1998 D2 / 1.G AEB Engine OBD and DTC

01-17
Diagnostic Trouble Code (DTC) table

Notes:

The DTC table is organized according to SAE and VAG diagnostic trouble codes.
The "MIL" column labeled specifies the MIL switching condition associated with that DTC.
DTCs that do not switch on the MIL after the malfunction is recognized by the ECM are identified by the MIL switching
condition "Off."
DTCs that do switch on the MIL immediately after the malfunction is recognized by the ECM are identified by the MIL
switching condition "Immed."
DTCs that are recognized by the ECM and switch on the MIL after two consecutive driving cycles (Dcy) are identified by
the MIL switching condition "2 Dcy."
Always correct malfunctions that are designated "immediately" as soon as possible, followed by those malfunctions that
are designated "2Dcy."
When all repairs have been completed, erase DTC memory ( Page 01
-40
) and then generate new readiness code
Page 01
-62

DTCs that are recognized as a result of intermittent malfunctions, or DTCs that are not erased after repairs, are classified
as sporadic malfunctions. These are identified by the designation "SP" appearing in the display.
A sporadic malfunction will be erased if it no longer occurs after 50 driving cycles during which the engine reaches
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01-37

Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P1559 17967 Idle Speed Contr. Throttle Pos.
Adaptation Malfunction
(Adaptation of throttle valve control module -J338- to Motronic
ECM has been interrupted, e.g. the accelerator pedal was
depressed or the engine was started during throttle valve control
module adjustment) Off
- Check throttle body and
throttle valve control module
Page 24
-99

P1560 17968 Maximum Engine Speed Exceeded Off
- Carry out engine
mechanical repairs as
necessary
P1564 17972 Idle Speed Contr. Throttle Pos.
Low Voltage During Adaptation
(Voltage less than 10 volts during adaptation of throttle valve
control module -J338-) Off
- Check throttle valve control
module power supply
voltage Page 24
-101

P1602 18010 Power Supply (B+) Terminal 30
Low Voltage Off
- Check Engine Control
Module (ECM) power supply
Page 24
-77

P1606 18014 Rough Road Spec Engine Torque ABS-ECU
Electrical Malfunction Off
- Check ABS control module
signal for rough road
recognition Page 24
-161

Pa
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gnostic
(OBD
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.FU02.01.1