1995 AUDI A6 ATQ Engine Check DTC Memory And Erase DTC Memory Workshop Manual

01-34

DTC
DTC text
Corrective action
SAE
VAG


P1136 17544 Bank 1, mixture
adaptation (add.)
System too lean
1) - Road test vehicle (fuel in oil).
- Check fuel system pressure Page 24
-30
P1137 17545 Bank 1, mixture
adaptation (add.)
System too rich
1) - Check Mass Air Flow (MAF) sensor Page 24
-56
- Check oxygen sensor before catalytic converter Page 24
-76
P1138 17546 Bank 2, mixture
adaptation (add.)
System too lean
1) - Check oxygen sensor behind catalytic converter Page 24
-97
P1139 17547 Bank 2, mixture
adaptation (add.)
System too rich
1) - Check Evaporative Emission (EVAP) Canister Purge Regulator Valve Page
24
-128

P1140 17548 Bank 2, sensor 2
Internal resistance too
large
1) - Next check signal wires for contact resistance => page Page 24
-114
; if
there are no contact resistances: Replace oxygen sensor
1) For these malfunctions, ECM does not switch on the Malfunction Indicator Lamp (MIL) unless malfunction is recognized
again after another engine start. Meaning of Malfunction Indicator Lamp (MIL) Page 01
-3 .
Note:
add = additive, means that malfunction is only valid at closed throttle (idle).
Pa
ge 25 of 52 Check DTC Memor
y (function 02
) and Erase DTC Memor
y (function 05
)
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.2

01-35

DTC
DTC text
Corrective action
SAE
VAG


P1141 17549 Load detection
Implausible value - Check to be sure the correct throttle valve control module is installed (part
number)
- Check Mass Air Flow (MAF) sensor Page 24
-56
P1142 17550 Load detection
Limit not reached
P1143 17551 Load detection
Limit exceeded
P1147 17555 Oxygen sensor control, bank
2
System too lean - Check oxygen sensor adaptation values and regulation Page 24
-83
P1148 17556 Oxygen sensor control, bank
2
System too rich
Pa
ge 26 of 52 Check DTC Memor
y (function 02
) and Erase DTC Memor
y (function 05
)
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.2

01-36

DTC
DTC text
Corrective action
SAE
VAG


P1149 17557 Oxygen sensor control, bank 1
Unplausible control value - Check oxygen sensor adaptation values and
regulation Page 24
-83

- Check fuel system pressure Page 24
-30
P1150 17558 Oxygen sensor control, bank 2
Unplausible control value - Check intake system for proper seal Page 24
-
64

P1171 17579 Angle sensor -2- for throttle drive (power accelerator
actuation) -G188-
Implausible signal
2)3)
- Check angle sensor -1- for throttle drive Page
24
-148

P1172 17580 Angle sensor -2- for throttle drive (power accelerator
actuation) -G188-
Signal too small
2) 3)

P1173 17581 Angle sensor -2- for throttle drive (power accelerator
actuation) -G188-
Signal too large
2) 3)


2) For these malfunctions, ECM switches on the EPC warning lamp in instrument cluster. Significance of EPC warning lamp
Page 24
-136
.
3) For these malfunctions, ECM switches on the exhaust warning lamp in instrument cluster immediately after recognizing the
malfunction. Meaning of Malfunction Indicator Lamp (MIL) Page 01
-3 .
Pa
ge 27 of 52 Check DTC Memor
y (function 02
) and Erase DTC Memor
y (function 05
)
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.2

01-37

DTC
DTC text
Corrective action
SAE
VAG


P1176 17584 Bank 1, oxygen sensor correction behind
catalytic converter
Control limit reached
1) - Check oxygen sensor aging of oxygen sensor before
catalytic converter
Page 24
-93

P1177 17585 Bank 2, oxygen sensor correction behind
catalytic converter
Control limit reached
1) - Check oxygen sensor and oxygen sensor control behind
catalytic converter
Page 24
-97

P1213 17621 Cylinder 1 fuel injector -N30-
Short circuit to B+
1) - Check fuel injectors Page 24
-36
P1214 17622 Cylinder 2 fuel injector -N31-
Short circuit to B+
1)
P1215 17623 Cylinder 3 fuel injector -N32-
Short circuit to B+1)
P1216 17624 Cylinder 4 fuel injector -N33-
Short circuit to B+1)
P1217 17625 Cylinder 5 fuel injector -N83-
Short circuit to B+1)
P1218 17626 Cylinder 6 fuel injector -N84-
Short circuit to B+1)
1) For these malfunctions, ECM does not switch on the Malfunction Indicator Lamp (MIL) unless malfunction is recognized
again after another engine start. Meaning of Malfunction Indicator Lamp (MIL) Page 01
-3 .
Pa
ge 28 of 52 Check DTC Memor
y (function 02
) and Erase DTC Memor
y (function 05
)
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.2

01-38

DTC
DTC text
Corrective action
SAE
VAG


P1225 17633 Cylinder 1 fuel injector -N30-
Short circuit to Ground (GND)
1) - Check fuel injectors Page 24
-36
P1226 17634 Cylinder 2 fuel injector -N31-
Short circuit to Ground (GND)
1)
P1227 17635 Cylinder 3 fuel injector -N32-
Short circuit to Ground (GND)1)
P1228 17636 Cylinder 4 fuel injector -N33-
Short circuit to Ground (GND)1)
P1229 17637 Cylinder 5 fuel injector -N83-
Short circuit to Ground (GND)1)
P1230 17638 Cylinder 6 fuel injector -N84-
Short circuit to Ground (GND)1)
1) For these malfunctions, ECM does not switch on the Malfunction Indicator Lamp (MIL) unless malfunction is recognized
again after another engine start. Meaning of Malfunction Indicator Lamp (MIL) Page 01
-3 .
Pa
ge 29 of 52 Check DTC Memor
y (function 02
) and Erase DTC Memor
y (function 05
)
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.2

01-39

DTC
DTC text
Corrective action
SAE
VAG


P1237 17645 Cylinder 1 fuel injector -N30-

Open circuit
1) - Check fuel injectors Page 24
-36
P1238 17646 Cylinder 2 fuel injector -N31-

Open circuit
1)
P1239 17647 Cylinder 3 fuel injector -N32-

Open circuit1)
P1240 17648 Cylinder 4 fuel injector -N33-

Open circuit1)
P1241 17649 Cylinder 5 fuel injector -N83-

Open circuit1)
P1242 17650 Cylinder 6 fuel injector -N84-

Open circuit1)
1) For these malfunctions, ECM does not switch on the Malfunction Indicator Lamp (MIL) unless malfunction is recognized
again after another engine start. Meaning of Malfunction Indicator Lamp (MIL) Page 01
-3 .
Pa
ge 30 of 52 Check DTC Memor
y (function 02
) and Erase DTC Memor
y (function 05
)
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.2

01-40

DTC
DTC text
Corrective action
SAE
VAG


P1250 17658
Fuel level too low
4)
Repair Manual, Electrical Equipment, Repair Group 01, On Board Diagnostic
(OBD) of instrument cluster; Read Measuring Value Block
- Fill fuel tank with fuel
- Check wire connection between Engine Control Module (ECM) and instrument
cluster according to wiring diagram
- Check signal from sender for fuel gauge and fuel gauge
P1296 17704 Malfunction in cooling
system
1)
Repair Manual, Engine Mechanical, Repair Group 19; Cooling system
components, removing and installing - Check coolant temperature sensor Page 28
-23
- Check coolant regulator
1) For these malfunctions, ECM does not switch on the Malfunction Indicator Lamp (MIL) unless malfunction is recognized
again after another engine start. Meaning of Malfunction Indicator Lamp (MIL) Page 01
-3 .
4) The DTC "Fuel Level Too Low" is stored 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 (e.g. by the customer) in the meantime.
In this way, it can be determined that subsequent malfunctions were caused by lack of fuel, e.g. combustion misfires or
oxygen control related malfunctions.
Pa
ge 31 of 52 Check DTC Memor
y (function 02
) and Erase DTC Memor
y (function 05
)
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.2

01-41

DTC
DTC text
Corrective action
SAE
VAG


P1325 17733 Knock control, cyl. 1
Control limit reached - Check knock control Page 28
-33

P1326 17734 Knock control, cyl. 2
Control limit reached
P1327 17735 Knock control, cyl. 3
Control limit reached
P1328 17736 Knock control, cyl. 4
Control limit reached
P1329 17737 Knock control, cyl. 5
Control limit reached
P1330 17738 Knock control, cyl. 6
Control limit reached
Pa
ge 32 of 52 Check DTC Memor
y (function 02
) and Erase DTC Memor
y (function 05
)
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.2