manual AUDI A6 1998 C5 / 2.G AHA Engine On Board Diagnostic Workshop Manual

01-10

4D0907551A 2.8L V6/5V MOTR HS D01 Coding 06051
WSC 00000

Indicated on display (ECM identification and coding, example)
4D0 _ _
_ Engine Control Module (ECM) Part No.
2.8 L Engine displacement
V6/5V Engine type:
V-engine, 6-cylinder, 5-valve
MOTR Motronic
HS
AT Manual transmission
Automatic transmission
D.. ECM software version
Coding ECM coding
Coding variations page 01
-14

WSC
12345 Plant number: indicates where VAG1551 scan tool was used
for last coding and/or adaptation (as long as factory coding
has not been changed, WSC 00000 is displayed)
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01-14
ECM coding variations

Country/Emissions
Drivetrain/Options
Transmission
Vehicle type
00
= ------------------ 0
= Front-wheel-drive without
traction control (ASR) 0
= 5-speed manual 0
= ------------
------
01
= ------------------ 1
= Front-wheel-drive with traction
control (ASR) 1
= ------------------ 1
= A4
02
= ------------------ 2
= All-wheel-drive without traction
control (ASR) 2
= ------------------ 2
= ------------
------
03
= ------------------ 3
= All-wheel-drive with traction
control (ASR) 3
= ------------------ 3
= ------------
------
04
= ------------------ 4
= ------------------ 4
= ------------------ 4
= ------------
------
05
= ------------------ 5
= ------------------ 5
= Automatic trans.
01V 5
= ------------
------
06
= USA, equipped with EVAP system Leak
Detection Pump (LDP) 6
= ------------------ 6
= ------------------ 6
= ------------
------
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01-15

Code number structure (example)





USA vehicle with Leak Detection Pump (LDP): 0 6
Front-wheel-drive without traction control (ASR): 0
Automatic transmission 01V: 5
Audi A4: 1
Code number: 0 6 0 5 1 Note:
Vehicles with traction control (ASR) can be recognized by the ASR control light in the instrument cluster or by ABS/ASR On
Board Diagnostic (OBD).
Repair Manual, Brake System, Repair Group 01
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01-24

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



P0327 16711 Knock Sensor1
Circ.
Low Input Immed.
- Check knock sensors and knock sensor control page 28
-8
P0328 16712 Knock Sensor1
Circ.
High Input
P0332 16716 Knock Sensor2
Circ.
Low Input
P0333 16717 Knock Sensor2
Circ.
High Input
P0411 16795 Sec. Air Inj. Sys.
Incorrect Flow
Detected 2 Dcy
- Check Secondary Air Injection (AIR) system Repair Manual,
2.8 Liter V6 5V Engine Mechanical, Repair Group 26 P0422 16806 Main Catalyst,
Bank1
Efficiency Below
Threshold 2 Dcy
- Check Heated Oxygen Sensor (HO2S) -G39- and O2S control
(bank 1, sensor1) page 24
-22

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01-25

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



P0432 16816 Main Catalyst, Bank2
Efficiency Below Threshold 2
Dcy - Check HO2S -G108- and O2S control (bank 2, sensor 1)
page 24
-22

P0441 16825 EVAP Emission Contr. Sys.
Incorrect Purge Flow Off
- Check Evaporative Emissions (EVAP) canister purge
regulator valve -N80- output Diagnostic Test Mode
(DTM), page 01
-51

P0442 16826 EVAP Emission Contr. Sys.
(Small Leak)
Leak Detected Off
- Check Evaporative Emission (EVAP) system Repair
Manual, Fuel Supply System, Repair Group 20 P0455 16839 EVAP Emission Contr. Sys.
(Gross Leak)
Leak Detected Off
- Check Evaporative Emission (EVAP) system Repair
Manual, Fuel Supply System, Repair Group 20 P0501 16885 Vehicle Speed Sensor
Range/Performance 2
Dcy - Check vehicle speed signal page 24
-168
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01-32

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



P1137 17545 Long Term Fuel Trim Add.
Fuel, Bank1
System too Rich 2) 2
Dcy - Check Heated Oxygen Sensor (HO2S) -G39- (bank 1,
sensor 1) and O2S control page 24
-22

- Check fuel pressure, fuel pressure regulator and residual
pressure page 24
-111

- Check exhaust system for leakage Repair Manual, 2.8
Liter V6 5V Engine Mechanical, Repair Group 26
2) The term "Add." = additive; applies only with engine running at idle speed.
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01-34

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



P1139 17547 Long Term Fuel Trim Add.
Fuel, Bank2
System too Rich 2) 2 Dcy
- Check Heated Oxygen Sensor (HO2S) 2 -G108- (bank
2, sensor 1) and O2S control page 24
-22

- Check fuel pressure, fuel pressure regulator and
residual pressure page 24
-111

- Check exhaust system for leakage Repair Manual,
2.8 Liter V6 5V Engine Mechanical, Repair Group 26
P1141 17549 Load Calculation Cross
Check
Range/Performance 2 Dcy
- Check Mass Air Flow (MAF) sensor -G70- page 24
-
68

- Check throttle valve control module page 24
-128
P1171 17579 Throttle Actuation
Potentiometer Signal 2
Range/Performance 1) Immed.
- Check throttle actuation potentiometer page 24
-
136
.
1) With this malfunction the exhaust Malfunction Indicator Light (MIL) is switched on by the ECM, immediately after the
malfunction has been recognized. Significance of MIL page 01
-2 .
2) The term "Add." = additive; applies only with engine running at idle speed.
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01-40

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



P1250 17658 Fuel Level
Too Low Off
Repair Manual, Electrical Equipment, Repair Group 01 (instrument cluster diagnostics, Read Measuring Value Block)
- Fuel volume less than 2 gallons; add fuel
- Check "fuel level low" signal page 24
-176
- Check fuel level sensor signal and fuel gauge
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.
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Circ.
Short to Ground
P1473 17881 EVAP Emission Contr. LDP
Circ.
Open Circ.
P1476 17884 EVAP Emission Contr. LDP
Circ.
Malfunction/Insufficient
Vacuum Off
- Check Evaporative Emission (EVAP) system Repair
Manual, Fuel Supply System, Repair Group 20
P1477 17885 EVAP Emission Contr. LDP
Circ.
Malfunction
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01-46

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



P1564 17972 Idle Speed Contr. Throttle Pos.
Low Voltage During Adaptation
(Supply voltage under 10 V during adaptation of throttle
valve control module to engine control module.) Off
- Check voltage supply to ECM
page 24
-90

P1565 17973 Idle Speed Contr. Throttle Pos.
Lower Impact Not Attained
(Lower specification not attained during adaptation of
throttle valve control module to engine control module,
e.g., accelerator pedal cable incorrectly adjusted,
throttle body dirty, etc.) 2 Dcy
- Clean throttle body
- Check accelerator pedal cable
adjustment Repair Manual,
Fuel Supply System, Repair
Group 20 P1600 18008 Power Supply (B+) Terminal 15
Low Voltage Immed.
- Check voltage supply to Engine
Control Module (ECM) page
24
-90

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