sensor AUDI A4 1998 B5 / 1.G APB Engine Motronic Syst

01-28

DTC
Description of malfunction
Corrective action
SAE
VAG


P0321 16705 Ign./Distributor Eng. Speed Inp. Circ.
Range/Performance
2) - Check Engine Speed Sensor Page 28
-21
P0322 16706 Ign./Distributor Eng. Speed Inp. Circ.
No Signal
2)
P0327 16711 Knock Sensor 1 Circ.
Low Input - Check Knock Sensor Page 28
-41
P0328 16712 Knock Sensor 1 Circ.
High Input
P0332 16716 Knock Sensor 2 Circ.
Low Input
P0333 16717 Knock Sensor 2 Circ.
High Input
P0341 16725 Camshaft Pos. Sensor Circ.
Range/Performance
2) - Check Camshaft Position Sensor Page 28
-45
P0346 16730 Camshaft Pos. Sensor Circ. 2
Range/Performance
2)
Pa
ge 33 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-29

DTC
Description of
malfunction
Corrective action
SAE
VAG


P0421 16805 Warm Up Catalyst,
Bank 1
Efficiency Below
Threshold
2) Repair Manual, 2.7 Liter V6 5V BiTurbo Engine Mechanical, Repair Group 26;
Components of Exhaust system removing and installing, Catalytic converter
removing and installing - Generate readiness code Page 01
-99
, if same DTC is displayed again, replace
warm up catalytic converter bank 1
P0431 16815 Warm Up Catalyst,
Bank 2
Efficiency Below
Threshold
2) Repair Manual, 2.7 Liter V6 5V BiTurbo Engine Mechanical, Repair Group 26;
Components of Exhaust system removing and installing, Catalytic converter
removing and installing - Generate readiness code Page 01
-99
, if same DTC is displayed again, replace
warm up catalytic converter bank 1
2) With this malfunction the exhaust Malfunction Indicator Light (MIL) is only switched on by the ECM, if the malfunction is
recognized after the engine has been restarted. Significance of MIL Page 01
-3 .
Important note:
The warm up catalytic converters are located between the two oxygen sensors of the relevant cylinder bank. The warm up
catalytic converters (little smaller than main catalytic converter) are located closer to the engine, not to be misunderstood with
the main catalysts you see immediately once the vehicle is lifted.
Pa
ge 35 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-31

DTC
Description of
malfunction
Corrective action
SAE
VAG


P0501 16885 Vehicle Speed Sensor
Range/Performance
2) - Check Vehicle Speed Signal (VSS) Page 24
-182
P0506 16890 Idle Control System
RPM Lower than
Expected
2) - Carry out adaptation of Throttle Valve Control Module Page 24
-146
P0507 16891 Idle Control System
RPM Higher than
Expected
2) - Check for unmetered (false) air Page 24
-76
P0560 16944 System Voltage
Malfunction - Check control module voltage supply Page 28
-32
P0562 16946 System Voltage
Low Voltage

P0563 16947 System Voltage
High Voltage

P0571 16955 Cruise/Brake Switch (A)
Circ.
Incorrect Signal Repair Manual, Electrical Equipment, Repair Group 01, On Board
- Check brake light switch and/or brake pedal switch Page 24
-185
Pa
ge 37 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-33

DTC
Description of malfunction
Corrective action
SAE
VAG


P1102 17510 O2 Sensor Heating Circ., Bank1-
Sensor1
Short to B+
2) - Check oxygen sensor heater Page 24
-114
P1105 17513 O2 Sensor Heating Circ., Bank1-
Sensor2
Short to B+
2)
P1107 17515 O2 Sensor Heating Circ., Bank2-
Sensor1
Short to B+ 2)
P1110 17518 O2 Sensor Heating Circ., Bank2-
Sensor2
Short to B+ 2)
P1111 17519 O2 Control (Bank 1)
System too lean - Check oxygen sensor adaptation values and oxygen sensor control
Page 24
-86

P1112 17520 O2 Bank 1
System too rich
2) With this malfunction the exhaust Malfunction Indicator Light (MIL) is only switched on by the ECM, if the malfunction is
recognized after the engine has been restarted. Significance of MIL Page 01
-3 .
Pa
ge 40 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-34

DTC
Description of malfunction
Corrective action
SAE
VAG


P1113 17521 Bank1-Sensor1
Internal Resistance too High
2) - Check oxygen sensor heater Page 24
-114
P1114 17522 Bank1-Sensor2
Internal Resistance too High
2)
- Check oxygen sensor signal wire and activation Page 24
-
122

P1115 17523 O2 Sensor Heater Circ., Bank1-
Sensor1
Short to Ground
2) - Check oxygen sensor heater Page 24
-114
P1116 17524 O2 Sensor Heater Circ., Bank1-
Sensor1
Open
2)
P1117 17525 O2 Sensor Heater Circ., Bank1-
Sensor2
Short to Ground
2)
P1118 17526 O2 Sensor Heater Circ., Bank1-
Sensor2
Open
2)
2) With this malfunction the exhaust Malfunction Indicator Light (MIL) is only switched on by the ECM, if the malfunction is
Pa
ge 41 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-35

DTC
Description of malfunction
Corrective action
SAE
VAG


P1119 17527 O2 Sensor Heater Circ., Bank2-Sensor1
Short to Ground
2) - Check oxygen sensor heater Page 24
-114
.
P1120 17528 O2 Sensor Heater Circ., Bank2-Sensor1
Open
2)
P1121 17529 O2 Sensor Heater Circ., Bank2-Sensor2
Short to Ground
2)

P1122 17530 O2 Sensor Heater Circ., Bank2-Sensor2
Open
2)

2) With this malfunction the exhaust Malfunction Indicator Light (MIL) is only switched on by the ECM, if the malfunction is
recognized after the engine has been restarted. Significance of MIL Page 01
-3 .
Pa
ge 43 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-36

DTC
Description of malfunction
Corrective action
SAE
VAG


P1127 17535 Long Term Fuel Trim mult., Bank1
System too rich
2) - Carry out road test (Fuel in engine oil)
- Check fuel pressure Page 24
-33
P1128 17536 Long Term Fuel Trim mult., Bank1
System too lean
2) - Check Mass Air Flow (MAF) Sensor Page 24
-59
- Check for unmetered (false) air Page 24
-76
P1129 17537 Long Term Fuel Trim mult., Bank2
System too rich
2) - Check oxygen sensor before catalytic converter Page 24
-81
- Check oxygen sensor behind catalytic converter Page 24
-100
P1130 17538 Long Term Fuel Trim mult., Bank2
System too lean
2) - Check fuel injectors Page 24
-43
P1131 17539 Bank2-Sensor1
Internal Resistance too High
2) - Check oxygen sensor heater Page 24
-114
.
- Check oxygen sensor signal wire and activation Page 24
-122
2) With this malfunction the exhaust Malfunction Indicator Light (MIL) is only switched on by the ECM, if the malfunction is
recognized after the engine has been restarted. Significance of MIL Page 01
-3 .
Note:
mult. = multiplikative means that the malfunction affects the entire RPM and load range.
Pa
ge 44 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-37

DTC
Description of malfunction
Corrective action
SAE
VAG


P1136 17544 Long Term Fuel Trim Add. Fuel,
Bank1
System too Lean
2) - Carry out road test (fuel in engine oil)
P1137 17545 Long Term Fuel Trim Add. Fuel,
Bank1
System too Rich
2) - Check fuel pressure Page 24
-33
P1138 17546 Long Term Fuel Trim Add. Fuel,
Bank2
System too Lean
2) - Check Mass Air Flow (MAF) Sensor Page 24
-59
P1139 17547 Long Term Fuel Trim Add. Fuel,
Bank2
System too Rich
2) - Check oxygen sensor before catalytic converter Page 24
-81
- Check oxygen sensor behind catalytic converter Page 24
-
100

- Check EVAP canister valve 1 Page 24
-134
P1140 17548 Bank2-Sensor2
Internal Resistance too High
2) - Check oxygen sensor heater Page 24
-114
.
- Check oxygen sensor signal wire and activation Page 24
-
122

2) With this malfunction the exhaust Malfunction Indicator Light (MIL) is only switched on by the ECM, if the malfunction is
recognized after the engine has been restarted. Significance of MIL Page 01
-3 .
Pa
ge 45 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-38

DTC
Description of
malfunction
Corrective action
SAE
VAG


P1147 17555 O2 Control (Bank2)
System too Lean - Check oxygen sensor adaptation values and oxygen sensor control
Page 24
-86

P1148 17556 O2 Control (Bank2)
System too Rich
P1149 17557 O2 Control (Bank1)
Out of Range - Check oxygen sensor adaptation values and oxygen sensor control
Page 24
-86

P1150 17558 O2 Control (Bank2)
Out of Range - Check fuel pressure Page 24
-33
- Check for unmetered (false) air Page 24
-76
Pa
ge 47 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1

01-39

DTC
Description of malfunction
Corrective action
SAE
VAG


P1171 17579 Throttle Actuation Potentiometer
Signal 2
Range/Performance
1) 3)
- Check throttle actuation potentiometer Page 24
-153
.
P1172 17580 Throttle Actuation Potentiometer
Signal 2
Signal too Low
1) 3)


P1173 17581 Throttle Actuation Potentiometer
Signal 2
Signal too High
1) 3)


P1176 17584 O2 Correction Behind Catalyst, B1
Limit Attained
2) - Check oxygen sensor aging of oxygen sensors before catalytic
converters Page 24
-93

P1177 17585 O2 Correction Behind Catalyst, B2
Limit Attained
2) - Check oxygen sensors and
oxygen sensor control behind catalytic converters Page 24
-100
1) With this malfunction the EPC (Electronic Power Control) Malfunction Indicator Light (MIL) in the instrument cluster is
switched on by the ECM immediately after the malfunction has been recognized. Significance of EPC malfunction indicator
light Page 24
-142
.
2) With this malfunction the exhaust Malfunction Indicator Light (MIL) is only switched on by the ECM, if the malfunction is
recognized after the engine has been restarted. Significance of MIL Page 01
-3 .
Pa
ge 48 of 166 Motronic s
ystem, On Board Dia
gnostic
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1