1998 AUDI A3 catalytic converter

01-21

DTC
DTC text
Corrective action
SAE
VAG


P0116 16500 Engine Coolant Temperature
(ECT) sensor -G62-
Implausible signal - Engine Coolant Temperature (ECT) sensor, checking Page 28
-30
P0117 16501 Engine Coolant Temperature
(ECT) sensor -G62-
Signal too small
P0118 16502 Engine Coolant Temperature
(ECT) sensor -G62-
Signal too large
P0130 16514 Bank 1, sensor 1
Electrical malfunction in circuit - Check Oxygen Sensor (O2S) and oxygen sensor control before
Three Way Catalytic Converter (TWC) Page 24
-71

P0131 16515 Bank 1, sensor 1
Voltage too low
P0132 16516 Bank 1, sensor 1
Voltage too high
P0133 16517 Bank1, Sensor 1
Signal too slow
P0134 16518 Bank 1, sensor 1
Pa
ge 5 of 40 Dia
gnostic Trouble Code
(DTC
) table
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.3

01-22

DTC
DTC text
Corrective action
SAE
VAG


P0136 16520 Bank 2, sensor 1
Electrical malfunction
in circuit - Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way
Catalytic Converter (TWC) Page 24
-87

P0137 16521 Bank1, Sensor 2
Voltage too low
P0138 16522 Bank1, Sensor 2
Voltage too high
P0139 16523 Bank1, Sensor 2
Signal too slow
P0140 16524 Bank1, Sensor 2No
activity
P0236 16620 Charge air pressure
sensor -G31-
Implausible signal Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical, Engine Code(s):
AEB, ATW, Repair Group 21, Charge air system with turbocharger, checking

P0237 16621 Charge air pressure
sensor -G31-
Signal too small
P0238 16622 Charge air pressure
sensor -G31-
Pa
ge 7 of 40 Dia
gnostic Trouble Code
(DTC
) table
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.3

01-25

DTC
DTC text
Corrective action
SAE
VAG


P0411 16795 Secondary air system
Throughput faulty
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical, Engine Code(s):
AEB, ATW, Repair Group 26; Checking Secondary Air Injection (AIR) system
- Check combination valve.
- Check hose setup (Secondary Air Injection -AIR- solenoid valve); check intake
system for leaks (false air) Page 24
-68

P0422 16806 Bank 1, main catalytic
converter
Not effective enough
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical, Engine 1.8 Liter
4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AEB, ATW, Repair Group
26
- Generate readiness code Page 01
-73
. If the same malfunction is indicated
again, replace catalytic converter.
P0441 16825 Tank ventilation system
Throughput faulty - Check Evaporative Emission (EVAP) canister purge regulator valve Page
24
-107

Pa
ge 11 of 40 Dia
gnostic Trouble Code
(DTC
) table
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.3

01-28

DTC
DTC text
Corrective action
SAE
VAG


P0601 16985 Control module faulty
- Replacing Engine Control Module (ECM) Page 24
-23
P0604 16988 Control module faulty
P0605 16989 Control module faulty
P0685 17069 Main relay -J271-
Open circuit - Check motronic Engine Control Module (ECM) power supply relay -J271-
Page 28
-13

P1102 17510 Bank 1, sensor 1, heating
circuit
Short circuit to B+ - Check oxygen sensor heating Page 24
-99
P1105 17513 Bank 1, sensor 2, 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
Pa
ge 14 of 40 Dia
gnostic Trouble Code
(DTC
) table
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.3

01-30

DTC
DTC text
Corrective action
SAE
VAG


P1127 17535 Bank 1, mixture adaptation (mult.)
System too rich - Road test vehicle (fuel in oil).
- Check fuel system pressure Page 24
-33
- Check Mass Air Flow (MAF) sensor Page 24
-60
- 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
-87
- Check fuel injectors Page 24
-38
.
Note:
mult. = multiplicative, means that malfunction is valid across entire range of engine speed and engine load.
Pa
ge 16 of 40 Dia
gnostic Trouble Code
(DTC
) table
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.3

01-31

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
-33
- Check Mass Air Flow (MAF) sensor Page 24
-60
- 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
-87
- Check Evaporative Emission (EVAP) canister purge regulator valve
Page 24
-107

Note:
add = additive, means that malfunction is only valid at closed throttle (idle).
Pa
ge 17 of 40 Dia
gnostic Trouble Code
(DTC
) table
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.3

01-32

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
-74

- Check fuel system pressure Page 24
-33
- 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
-
127

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

P1176 17584 Bank 1 oxygen sensor correction behind catalytic
converter Control limit reached - Check oxygen sensor aging of oxygen sensor before
catalytic converter Page 24
-83

- Check oxygen sensor and oxygen sensor control
behind catalytic converter Page 24
-87

Pa
ge 18 of 40 Dia
gnostic Trouble Code
(DTC
) table
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU06.01.3