AUDI A4 1995 B5 / 1.G AWM Engine Diagnostic Trouble Code Memory Checking Owner's Manual

01-28

DTC
DTC text
Corrective action
SAE
VAG


P1102 17510 Bank 1, sensor 1,
heating circuit
Short circuit to B+ - Oxygen sensor heating before catalytic converter Checking Page 24
-89
P1103 17511 Bank 2, sensor 1,
heating circuit
Performance too low - Check oxygen sensor heating behind catalytic converter Page 24
-107
P1105 17513 Bank 2, sensor 1,
heating circuit
Short circuit to B+
P1111 17519 Oxygen sensor control,
bank 1
System too lean - Check oxygen sensor control behind catalytic converter Page 24
-71
P1112 17520 Oxygen sensor control,
bank 1
System too rich
P1113 17521 Bank 1, sensor 1
Internal resistance too
high - Next, check signal wires for contact resistances Page 24
-82
; if no contact
resistances are present: Replace oxygen sensor
P1114 17522 Bank 2, sensor 1
- Next, check signal wires for contact resistances Page 24
-105
; if no contact
Pa
ge 21 of 49 Dia
gnostic Trouble Code
(DTC
) memor
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g and erasin
g
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yp
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pair&id=AUDI.B5.FU07.01.2

Internal resistance too
high resistances are present: Replace oxygen sensor
Pa
ge 22 of 49 Dia
gnostic Trouble Code
(DTC
) memor
y, checkin
g and erasin
g
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p://127.0.0.1:8080/audi/servlet/Dis
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yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-29

DTC
DTC text
Corrective action
SAE
VAG


P1115 17523 Bank 1, sensor 1, heating circuit
Short circuit to Ground (GND) - Check oxygen sensor heating before catalytic converter Page 24
-
89

P1116 17524 Bank 1, sensor 1, heating circuit
Open circuit

P1117 17525 Bank 2, sensor 1, heating circuit
Short circuit to Ground (GND) - Check oxygen sensor heating behind catalytic converter Page 24
-
107

P1118 17526 Bank 2, sensor 1, heating circuit
Open circuit

P1127 17535 Bank 1, mixture adaptation
(mult.)
System too rich - Road test vehicle (fuel in oil).
- Check fuel system pressure Page 24
-32
- Check Mass Air Flow (MAF) sensor Page 24
-59
- Check intake system for leaks (false air) Page 24
-68
P1128 17536 Bank 1, mixture adaptation
(mult.)
System too lean - Check oxygen sensor before catalytic converter Page 24
-71
- Check oxygen sensor behind catalytic converter Page 24
-94
- Check fuel injectors Page 24
-37
.
Note:
Pa
ge 23 of 49 Dia
gnostic Trouble Code
(DTC
) memor
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g and erasin
g
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mult. = multiplicative, means that malfunction is valid across entire range of engine speed and engine load.
Pa
ge 24 of 49 Dia
gnostic Trouble Code
(DTC
) memor
y, checkin
g and erasin
g
11/22/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-30

DTC
DTC text
Corrective action
SAE
VAG


P1136 17544 Bank 1, mixture adaptation
(add.)
System too lean - Road test vehicle (fuel in oil).
- Check fuel system pressure Page 24
-32
- Check Mass Air Flow (MAF) sensor Page 24
-59
- Check intake system for leaks (false air) Page 24
-68
P1137 17545 Bank 1, mixture adaptation
(add.)
System too rich - Check oxygen sensor behind catalytic converter Page 24
-94
- Check Evaporative Emission (EVAP) canister purge regulator valve
Page 24
-114

P1143 17551 Load detection
Limit exceeded - Check Mass Air Flow (MAF) sensor Page 24
-59
- Check throttle valve control module Page 24
-124
Note:
add = additive, means that malfunction is only valid at closed throttle (idle).
Pa
ge 25 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

01-31

DTC
DTC text
Corrective action
SAE
VAG


P1149 17557 Oxygen sensor control, bank 1
Unplausible control value - Check oxygen sensor adaptation values and
control Page 24
-75

- Check fuel system pressure Page 24
-32
- Check intake system for leaks (false air) Page 24
-68

P1171 17579 Angle sensor -2- for throttle drive (power accelerator
actuation) -G188-
Implausible signal - Check angle sensor -1- for throttle drive Page
24
-131

P1172 17580 Angle sensor -2- for throttle drive (power accelerator
actuation) -G188-
Signal too small
P1173 17581 Angle sensor -2- for throttle drive (power accelerator
actuation) -G188-
Signal too large

Pa
ge 26 of 49 Dia
gnostic Trouble Code
(DTC
) memor
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g and erasin
g
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-32

DTC
DTC text
Corrective action
SAE
VAG


P1176 17584 Bank 1, oxygen sensor correction behind
catalytic converter
Control limit reached - Check oxygen sensor ageing of oxygen sensor before
catalytic converter Page 24-84

- Check oxygen sensor and oxygen sensor control behind
catalytic converter Page 24
-94

P1198 17606 Bank 2, sensor 1, heating circuit
Electrical malfunction - Check oxygen sensor heating behind catalytic converter
Page 24
-107

P1213 17621 Cylinder 1 fuel injector -N30-
Short circuit to B+ - Check fuel injectors Page 24
-37
.
P1214 17622 Cylinder 2 fuel injector -N31-
Short circuit to B+
P1215 17623 Cylinder 3 fuel injector -N32-
Short circuit to B+
P1216 17624 Cylinder 4 fuel injector -N33-
Short circuit to B+
Pa
ge 27 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

01-33
DTC codes 17633 - 18261

DTC
DTC text
Corrective action
SAE
VAG


P1225 17633 Cylinder 1 fuel injector -N30-
Short circuit to Ground (GND) - Check fuel injectors Page 24
-37
.
P1226 17634 Cylinder 2 fuel injector -N31-
Short circuit to Ground (GND)
P1227 17635 Cylinder 3 fuel injector -N32-
Short circuit to Ground (GND)
P1228 17636 Cylinder 4 fuel injector -N33-
Short circuit to Ground (GND)
Pa
ge 28 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

01-34

DTC
DTC text
Corrective action
SAE
VAG


P1237 17645 Cylinder 1 fuel injector
-N30-
Open circuit - Check fuel injectors Page 24
-37
.
P1238 17646 Cylinder 2 fuel injector
-N31-
Open circuit
P1239 17647 Cylinder 3 fuel injector
-N32-
Open circuit
P1240 17648 Cylinder 4 fuel injector
-N33-
Open circuit
P1250 17658 Fuel level too low
Repair Manual, Electrical Equipment, Repair Group 01, On Board Diagnostic
(OBD) of instrument cluster
- Resulting malfunction Note
- Fill fuel tank with fuel, erase DTC memory
- Check DTC memory of instrument cluster
Note:
Pa
ge 29 of 49 Dia
gnostic Trouble Code
(DTC
) memor
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g and erasin
g
11/22/2002 htt
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yp
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pair&id=AUDI.B5.FU07.01.2

The DTC "Fuel level too low" is stored in connection with combustion misfires or malfunctions relating to oxygen sensor
control when there is/was too little fuel in fuel tank. The DTC is stored as a static malfunction and is not switched to sporadic
even if fuel tank has been filled with fuel in the meantime.
Pa
ge 30 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