ignition AUDI A4 1998 B5 / 1.G AWM Engine Diagnostic Trouble Code Memory Checking Workshop Manual

01-12


Diagnostic Trouble Code
(DTC) memory, checking and
erasing

Check DTC Memory (function 02)


- Connect VAS5051 tester Page 01-7 and
select vehicle system "01 - Engine electronics".
Engine should run at idle for this.

Note:
If engine doesn't start, crank engine using starter
for at least 5 seconds. Do not switch ignition off
afterward under any circumstance.

Display on VAS5051:
- In selection -1-, click on the diagnostic function "02 - Check DTC
memory".
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
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01-16

End Output (function 06)


Display on VAS5051:
- Select diagnostic function "06 - end output" in selection -1-.

Display on VAS5051:
- Switch off ignition and disconnect diagnostic connector after this
indication is displayed.
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01-22

DTC
DTC text
Corrective action
SAE
VAG


P0300 16684 Combustion misfire detected
- Check fuel pressure Page 24
-32
- Check fuel injectors Page 24
-37
P0301 16685 Cyl. 1 combustion misfire detected
- Check spark plugs and ignition wires with connector
P0302 16686 Cyl. 2 combustion misfire detected
- Ignition coils with power output stages Checking Page 28
-4
P0303 16687 Cyl. 3 combustion misfire detected
- Check misfire recognition Page 28
-55
P0304 16688 Cyl. 4 combustion misfire detected
- Fill fuel tank with fuel
P0321 16705 Engine Speed (RPM) sensor -G28-
Implausible signal - Check engine speed (RPM) sensor Page 28
-27
P0322 16706 Engine Speed (RPM) sensor -G28-
No signal
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gnostic Trouble Code
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-37

DTC
DTC text
Corrective action
SAE
VAG


P1340 17748 Camshaft Position
(CMP) / crankshaft
position sensor
incorrect allocation
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical, Engine Code
(s): AWM, Repair Group 13; Engine, disassembling and assembling; removing and installing toothed belt
- Unscrew Camshaft Position (CMP) sensor and check whether shutter wheel
is mounted properly at camshaft. (If mounted improperly, locking lug will get
squished when mounting bolt is tightened.)
- Also check engine timing
P1355 17763 Ignition timing, cyl. 1
Open circuit - Ignition coils with power output stages Checking Page 28
-4
P1356 17764 Ignition timing, cyl. 1
Short circuit to B+
P1357 17765 Ignition timing, cyl. 1
Short circuit to Ground
(GND)
P1358 17766 Ignition timing, cyl. 2
Open circuit
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(DTC
) memor
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-38

DTC
DTC text
Corrective action
SAE
VAG


P1359 17767 Ignition timing, cyl. 2
Short circuit to B+ - Ignition coils with power output stages Checking Page 28
-4
P1360 17768 Ignition timing, cyl. 2
Short circuit to Ground (GND)
P1361 17769 Ignition timing, cyl. 3
Open circuit
P1362 17770 Ignition timing, cyl. 3
Short circuit to B+
P1363 17771 Ignition timing, cyl. 3
Short circuit to Ground (GND)
P1364 17772 Ignition timing, cyl. 4
Open circuit
P1365 17773 Ignition timing, cyl. 4
Short circuit to B+
P1366 17774 Ignition timing, cyl. 4
Short circuit to Ground (GND)
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) memor
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2

01-41

DTC
DTC text
Corrective action
SAE
VAG


P1432 17840 Secondary Air Injection (AIR)
solenoid valve -N112-
Open circuit Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine Mechanical, Engine
Code(s): AWM, Checking Secondary Air Injection (AIR) system

P1433 17841 Secondary Air Injection (AIR)
pump relay -J299-
Open circuit
P1434 17842 Secondary Air Injection (AIR)
pump relay -J299-
Short circuit to B+
P1435 17843 Secondary Air Injection (AIR)
pump relay -J299-
Short circuit to Ground (GND)
P1479 17887 Brake vacuum system
Mechanical malfunction - Perform a short trip in Engine Control Module (ECM) (basic setting;
display group 8 with ignition on and selector lever in "P" or "N")
- Check hose setup to pump or from the pump to brake booster
- Perform output Diagnostic Test Mode (DTM) in Engine Control Module
(ECM) to check whether the vacuum pump runs or is activated
Pa
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gnostic Trouble Code
(DTC
) memor
y, checkin
g and erasin
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2