AUDI A4 1996 B5 / 1.G AWM Engine Diagnostic Trouble Code Memory Checking Service Manual

01-43

DTC
DTC text
Corrective action
SAE
VAG


P1539 17947 Clutch vacuum vent valve switch -F36-
Implausible signal - Check clutch pedal switch Page 24
-156
P1541 17908 Fuel Pump (FP) relay -J17-
Open circuit - Check Fuel Pump (FP) relay Page 24
-52
P1542 17950 Angle sensor -1- for throttle drive (power accelerator
actuation) -G187-
Implausible signal - Check angle sensor -1- for throttle drive
Page 24
-131

P1543 17951 Angle sensor -1- for throttle drive (power accelerator
actuation) -G187-
Signal too small
P1544 17952 Angle sensor -1- for throttle drive (power accelerator
actuation) -G187-
Signal too large
P1545 17953 Throttle valve control Malfunction
- Check throttle valve control module Page
24
-124

Pa
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11/22/2002 htt
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01-44

DTC
DTC text
Corrective action
SAE
VAG


P1546 17954 Wastegate bypass
regulator valve -N75-
Short circuit to B+ Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical, Engine Code
(s): AWM, Repair Group 21, Charge air system with turbocharger, checking

P1547 17955 Wastegate bypass
regulator valve -N75-
Short circuit to Ground
(GND)
P1548 17956 Wastegate bypass
regulator valve -N75-
Open circuit

P1550 17958 Boost pressure
Control difference
P1555 17963 Maximum boost
pressure exceeded
P1556 17964 Boost pressure
regulation
Control limit not reached
P1557 17965 Boost pressure
regulation
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical, Engine Code
- Check air pressure system using VAG 1687 charge air system tester
Pa
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gnostic Trouble Code
(DTC
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11/22/2002 htt
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Control limit exceeded (s): AWM, Repair Group 21; Charge Pressure, Leak test with VAG 1687
Pa
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gnostic Trouble Code
(DTC
) memor
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
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pair&id=AUDI.B5.FU07.01.2

01-45

DTC
DTC text
Corrective action
SAE
VAG


P1558 17966 Throttle drive (power accelerator actuation) -G186-
Electrical malfunction in circuit - Check throttle valve control module Page 24
-124
P1559 17967 Throttle valve control module -J338-
Malfunction in basic setting - Perform adaptation Page 24
-125
P1560 17968 Maximum engine speed exceeded
- Repair mechanical damage
P1564 17972 Throttle valve control module -J338-
Voltage too low during basic setting - Charge battery, repeat basic setting
P1565 17973 Throttle valve control module -J338-
Lower impact not reached - Check throttle valve control module Page 24
-124
P1568 17976 Throttle valve control module -J338-
Mechanical malfunction
Pa
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gnostic Trouble Code
(DTC
) memor
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-46

DTC
DTC text
Corrective action
SAE
VAG


P1569 17977 Cruise control switch -E45-
Implausible signal Repair Manual, Electrical Equipment, Repair Group 01; On Board
Diagnostic (OBD) for cruise control system

P1570 17978 Engine Control Module
(ECM)locked
Repair Manual, Electrical Equipment, Repair Group 01, On Board
Diagnostic (OBD) for immobilizer
- Adapt electronic immobilizer to Engine Control Module (ECM)
P1579 17987 Throttle valve control
module -J338-
Adaptation not started - Perform adaptation of throttle valve control module while maintaining test
requirements Page 24
-125

P1602 18010 Voltage supply, terminal 30
Voltage too low - Check voltage supply for control module Page 28
-37
Pa
ge 45 of 49 Dia
gnostic Trouble Code
(DTC
) memor
y, checkin
g and erasin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-47

DTC
DTC text
Corrective action
SAE
VAG


P1603 18011 Control module faulty
- Replacing Engine Control Module (ECM) Page 24
-22
P1604 18012 Control module faulty
P1606 18014 Rough terrain info/engine torque
from ABS control module
Electrical malfunction in circuit - Check data exchange between Engine Control Module (ECM) and
other CAN capable control modules Page 24
-178

P1609 18017 Crash shut-off was triggered
(Crash triggered)
1) Repair Manual, Body On Board Diagnostic (OBD), Repair Group 01;
On Board Diagnostic (OBD) of airbag system

- Erase DTC memory of the Engine Control Module (ECM) after output
Diagnostic Test Mode (DTM) of the airbag system Page 01
-12

1) DTC is stored upon appropriate signal from airbag control module and also during output Diagnostic Test Mode (DTM) of
the airbag system.
Pa
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gnostic Trouble Code
(DTC
) memor
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-48

DTC
DTC text
Corrective action
SAE
VAG


P1610 18018 Control module faulty
- Replacing Engine Control Module (ECM) Page 24
-22
P1612 18020 Engine Control Module (ECM)
incorrectly coded - Code Engine Control Module (ECM) Page 01
-71
P1624 18032 Request for warning lamp on
active
1)
Repair Manual, 5
-Spd. Automatic Transmission 01V, Repair Group
01, On Board Diagnostic (OBD)
- Exhaust related malfunction of Transmission Control Module (TCM)
- Check DTC memory of Transmission Control Module (TCM)
P1626 18034 Powertrain CAN-bus
Missing message from
Transmission Control Module - Check data exchange between Engine Control Module (ECM) and
other CAN capable control modules Page 24
-178

1) The Transmission Control Module (TCM) recognized a malfunction that worsens engine emissions. The Transmission
Control Module (TCM) sends the DTC to the Engine Control Module (ECM), which then switches on the Malfunction Indicator
Lamp (MIL). Notes for Malfunction Indicator Lamp (MIL) Page 01
-3 . The message P1624 is simultaneously stored in the
Engine Control Module (ECM) as evidence that the Malfunction Indicator Lamp (MIL) was not switched on due to an engine
problem but rather a transmission problem.
Pa
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gnostic Trouble Code
(DTC
) memor
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-49

DTC
DTC text
Corrective action
SAE
VAG


P1630 18038 Throttle Position (TP) sensor -G79-
Signal too small - Throttle Position (TP) sensor, checking Page 24
-
138

P1631 18039 Throttle Position (TP) sensor -G79-
Signal too large
P1633 18041 Sender -2- for accelerator pedal position -G185-

Signal too small

P1634 18042 Sender -2- for accelerator pedal position -G185-

Signal too large

P1640 18048 Control module faulty
- Replacing Engine Control Module (ECM) Page 24
-
22

Pa
ge 48 of 49 Dia
gnostic Trouble Code
(DTC
) memor
y, checkin
g and erasin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-50

DTC
DTC text
Corrective action
SAE
VAG


P1648 18056 Powertrain CAN-bus
faulty - Check data exchange between Engine Control Module (ECM) and
other CAN capable control modules Page 24
-178

P1649 18057 Powertrain CAN-bus
Missing message from ABS
control module
P1650 18058 Powertrain CAN-bus
Missing message from
instrument cluster
P1654 18085 Check DTC memory of the
instrument cluster Repair Manual, Electrical Equipment, Repair Group 01, On Board
Diagnostic (OBD) of instrument cluster

P1682 18090 Powertrain CAN-bus
Implausible message from ABS
control module - Check data exchange between Engine Control Module (ECM) and
other CAN capable control modules Page 24
-178

P1853 18261 Powertrain CAN-bus
Implausible message from ABS
control module
Pa
ge 49 of 49 Dia
gnostic Trouble Code
(DTC
) memor
y, checkin
g and erasin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2