AUDI A6 2000 C5 / 2.G AEB Engine OBD and DTC

01-21

Diagnostic Trouble Code
(DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P0300 16684 Random/Multiple Cylinder
Misfire Detected 2 Dcy /
blink - Fuel level too low, check fuel level and add
if necessary
- Check misfire detection Page 28
-12
- Check fuel injectors Page 24
-87
- Output Diagnostic Test Mode (DTM)
Page 01
-42

- Check engine speed (RPM) sensor -G28-
Page 24
-75

P0301 16685 Cyl. 1
Misfire Detected
P0302 16686 Cyl. 2
Misfire Detected
P0303 16687 Cyl. 3
Misfire Detected
P0304 16688 Cyl. 4
Misfire Detected
P0321 16705 Ign./Distributor Eng. Speed Inp.
Circ. 2 Dcy
- Check engine speed (RPM) sensor -G28-
Pa
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Range/Performance
Page 24
-75

P0322 16706 Ign./Distributor Eng. Speed Inp.
Circ.
No Signal Immed.
Note on misfire malfunctions:
For malfunctions that may be caused by low fuel volume (i.e. combustion misfire) a low-fuel malfunction (DTC "P1250") is also
stored when there is less than 2 gallons of fuel remaining in the tank.
Pa
ge 32 of 57 On Board Dia
gnostic
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)
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01-22

Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P0327 16711 Knock Sensor 1
Circ.
Low Input Immed.
- Check knock sensors and knock sensor control Page 28
-5
P0332 16716 Knock Sensor 2
Circ.
Low Input
- Check knock sensors and knock sensor control Page 28
-5
P0422 16806 Main Catalyst,
Bank1
Efficiency Below
Threshold 2 Dcy
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical,
Engine Code(s): AEB, ATW, Repair Group 26.
- Replace Three Way Catalytic Converter (TWC):
P0441 16825 EVAP Emission
Contr. Sys.
Incorrect Purge
Flow 2 Dcy
- Check Evaporative Emissions (EVAP) canister purge regulator
valve output Diagnostic Test Mode (DTM), page Page 01
-42

Pa
ge 33 of 57 On Board Dia
gnostic
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)
11/19/2002 htt
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pair&id=AUDI.B5.FU02.01.1

01-23

Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P0442 16826 EVAP Emission Contr. Sys.
(Small Leak)
Leak Detected m.y. 1997:
Off
Repair Manual, Fuel Supply System,
Repair Group 20;
- Check EVAP system Page 24
-136
- Checking EVAP system for leaks using
KLI9210 EVAP tester
P0455 16839 EVAP Emission Contr. Sys.
(Gross Leak)
Leak Detected m.y. 1998 :
2 Dcy

P0456 16840 EVAP Emission Contr. Sys.
(Small Leak)
Leak Detected
Repair Manual, Fuel Supply System, Repair Group 20;
- Checking EVAP system for leaks using
KLI9210 EVAP tester
P0501 16885 Vehicle Speed Sensor
Range/Performance 2 Dcy
- Check vehicle speed signal Page 24
-
149

P0506 16890 Idle Control System
RPM Lower Than Expected 2 Dcy
- Check throttle body and throttle valve
control module Page 24
-99

P0507 16891 Idle Control System
Pa
ge 34 of 57 On Board Dia
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RPM Higher Than Expected
Pa
ge 35 of 57 On Board Dia
gnostic
(OBD
)
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01-24

Diagnostic Trouble Code
(DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P0560 16944 System Voltage
Malfunction 2
Dcy - Check Engine Control Module (ECM) power
supply Page 24
-77

P0562 16946 System Voltage
Low Voltage
P0563 16947 System Voltage
High Voltage
P0601 16985 Internal Contr. Module Memory
Check Sum Error 2
Dcy Replace ECM Page 01
-57

P0604 16988 Internal Contr. Module Random
Access
Memory (RAM) Error
P0707 17091 Transm. Range Sensor Circ.
Low Input Off
- Check transmission driving range signal -F125-
Page 24
-153

P0708 17092 Transm. Range Sensor Circ.
High Input
P1102 17510 O2 Sensor Heating Circ., Bank1-
Sensor1 2
Dcy - Check Oxygen Sensor (O2S) heater -Z19-
Pa
ge 36 of 57 On Board Dia
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)
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Short to B+
Page 24
-27

P1105 17513 O2 Sensor Heating Circ., Bank1-
Sensor2
Short to B+
- Check Oxygen Sensor (O2S) heater -Z29-
Page 24
-43

Pa
ge 37 of 57 On Board Dia
gnostic
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01-25

Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P1127 17535 Long Term Fuel Trim
mult., Bank1
System too Rich
1)
2
Dcy - Check Mass Air Flow (MAF) sensor -G70- Page 24
-57

- Check HO2S -G39- and O2S control Page 24
-17

- Check Oxygen Sensor (O2S) behind Three Way Catalytic
Converter (TWC) -G130- Page 24
-35


- Check fuel pressure regulator and residual fuel pressure
Page 24
-93


- Check fuel injectors Page 24
-87
- Output Diagnostic Test Mode (DTM) Page 01
-42
1) The term "mult." = multiplicative; applies to entire engine speed (RPM) and load range.
Pa
ge 38 of 57 On Board Dia
gnostic
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)
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play?action=Goto&t
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pair&id=AUDI.B5.FU02.01.1

01-26

Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P1128 17536 Long Term Fuel Trim
mult., Bank1
System too Lean
1)
2
Dcy - Check HO2S -G39- and O2S control Page 24
-17

- Check Oxygen Sensor (O2S) behind Three Way Catalytic
Converter (TWC) -G130- Page 24
-35


- Check fuel pressure regulator and residual fuel pressure
Page 24
-93


- Check fuel injectors Page 24
-87
- Output Diagnostic Test Mode (DTM) Page 01
-42

- Check EVAP canister purge regulator valve output
Diagnostic Test Mode (DTM), page Page 01
-42

1) The term "mult." = multiplicative; applies to entire engine speed (RPM) and load range.
Pa
ge 39 of 57 On Board Dia
gnostic
(OBD
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.01.1

01-27

Diagnostic Trouble Code
(DTC)
Malfunction text
MIL
Corrective action
SAE
VAG



P1136 17544 Long Term Fuel Trim Add.
Fuel, Bank1
System too Lean
2)
2
Dcy - Check intake air system for leaks ("false air")
Page 24
-97


- Check HO2S -G39- and O2S control Page 24
-17

- Check Mass Air Flow (MAF) sensor -G70- Page
24
-57


- Check fuel pressure regulator and residual fuel
pressure Page 24
-93


- Check fuel injectors Page 24
-87
- Output Diagnostic Test Mode (DTM) Page 01
-42
2) The term "Add." = additive; applies only with engine running at idle speed.
Pa
ge 40 of 57 On Board Dia
gnostic
(OBD
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.01.1