AUDI A4 1999 B5 / 1.G AFC Engine On Board Diagnostic Multiport Fuel Injection Workshop Manual

01-105

Output on GST and/or on VAG
1551 scan tool Possible malfunction cause

Malfunction repair
P1204 / 17612
Cyl.4-Fuel Injector Circ
Electrical Malfunction
-----------------------
P1205 / 17613
Cyl. 5-Fuel Injector Circ
Electrical Malfunction
_______________________
P1206 / 17614
Cyl. 6-Fuel Injector Circ
Electrical Malfunction
_______________________ Are all 6 fuel injectors stored in DTC memory
with the malfunction "Cyl. X-Fuel Injector Circ
Electrical Malfunction" and with DTC P1500 /
17908 "Fuel Pump Relay Circ Electrical
Malfunction"?
No
Yes

- Check fuel pump relay and
control page 24
-24


Malfunction cause found: Yes
No

- Erase DTC memory, test drive
and after test drive, check DTC
memory again

Wiring connection to Cylinder 4, 5, or 6 fuel

- Check fuel injectors page
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injectors faulty, or fuel injectors -N33-, -N83- or
-N84- faulty
24
-29

MIL Status:
MIL lights up immediately Malfunction cause found: Yes
No

- Erase DTC memory, test drive
and after test drive, check DTC
memory again

Engine Control Module (ECM) -J192- faulty

- Replace and code engine
control module page 01
-265

erase DTC memory and test
drive check DTC memory
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01-106
Notes:

If the malfunction "P1204 / 7612" and/or "P1205 / 17613" and/or "P1206 / 17614" is recognized by the engine control
module, the oxygen sensor control for bank 2 is blocked.
If all 6 fuel injectors are stored with the malfunction type "Cyl. X Electrical circuit electrical malfunction" the malfunction
"P1500 / 17908" is also set.
Output on GST and/or on VAG
1551 scan tool Possible malfunction cause

Malfunction repair
P1213 / 17621
Cyl.1-Fuel Injector Circ.
Short to B+
-----------------------
P1214 / 17622
Cyl.2-Fuel Injector Circ.
Short to B+
_______________________
P1215 / 17623
Cyl.3-Fuel Injector Circ. Wiring connection to Cylinder 1, 2,
or 3 fuel injectors faulty, or fuel
injectors -N30-, -N31- or -N32- faulty
Yes

- Check fuel injectors page 24
-29
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Short to B+
_______________________
MIL Status:
MIL lights up immediately

Malfunction cause found: Yes
No

- Erase DTC memory, test drive and
after test drive, check DTC memory
again

Engine Control Module (ECM) -
J192- faulty

- Replace and code engine control
module page 01
-265
erase DTC
memory and test drive check DTC
memory
Note:
If the malfunction "P1213 / 17621" and/or "P1214 / 17622" and/or "P1215 / 17623" is recognized by the engine control
module, the corresponding fuel injector is no longer triggered and the oxygen sensor control is blocked until ignition on.
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jection
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01-107

Output on GST and/or on VAG
1551 scan tool Possible malfunction cause

Malfunction repair
P1216 / 17624
Cyl.4-Fuel Injector Circ.
Short to B+
-----------------------
P1217 / 17625
Cyl.5-Fuel Injector Circ.
Short to B+
_______________________
P1218 / 17626
Cyl.6-Fuel Injector Circ.
Short to B+
_______________________
MIL Status:
MIL lights up immediately Wiring connection to Cylinder 4, 5,
or 6 fuel injectors faulty, or fuel
injectors -N33-, -N83- or -N84- faulty
Yes

- Check fuel injectors page 24
-29

Malfunction cause found: Yes

- Erase DTC memory, test drive and
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jection
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No
after test drive, check DTC memory
again

Engine Control Module (ECM) -
J192- faulty

- Replace and code engine control
module page 01
-265
erase DTC
memory and test drive check DTC
memory
Note:
If the malfunction "P1216 / 17624" and/or "P1217 / 17625" and/or "P1218 / 17626" is recognized by the engine control
module, the corresponding fuel injector is no longer triggered and the oxygen sensor control is blocked until ignition on.
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jection
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01-108

Output on GST and/or
on VAG 1551 scan
tool Possible malfunction
cause
Malfunction repair
P1250 / 17658
Fuel Level Too Low In addition, other
malfunctions stored in
the DTC memory?







Troubleshooting on other Diagnostic Trouble Codes (DTC) that
are stored in the DTC memory - If there are malfunctions that can be caused by fuel problems
(e.g. combustion misfiring), the malfunction "tank level too low" if
there is less than 12 liters (12.7 qt.) fuel in the tank check tank
level and fill tank if necessary
For troubleshooting
Display group 027

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jection
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01-109

Output on GST and/or on VAG
1551 scan tool Possible malfunction cause

Malfunction repair
P1325 / 17733
Cyl.1-Knock Control
Limit Attained
_______________________
P1326 / 17734
Cyl.2-Knock Control
Limit Attained
_______________________
P1327 / 17735
Cyl.3-Knock Control
Limit Attained
_______________________
MIL Status:
Malfunction not displayed by
MIL Has the control limit been
reached on all 6 cylinders
(P1335, P1326, P1327, P1328,
P1329, P1330) in DTC
memory?
No
Yes

- Poor fuel quality less than 91 AKI (CC) or 95
RON in tank fill tank with fuel having min. 91
AKI (CLC) or 95 RON (ROZ) - Loose subassemblies or loud noises from
subassemblies check

Malfunction cause found: Yes
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jection
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No
- Erase DTC memory, test drive and after test
drive, check DTC memory again

Was the control llimit
reached on 3 cylinders in one
bank? P1335, P1326, P1327 or
P1328, P1329, P1330 are in
the DTC memory.
No
Continued next page
Yes

- Knock Sensor for corresponding bank (-G61- or
-G66-) loose and/or tightening torque not OK;
check mounting of Knock Sensors (KS) 1 -G61-
and/or 2 -G66- and retighten if necessary use
insert 3247; tightening torque 20 Nm (15 ft lb) - Abnormal engine noises (e.g. subassemblies
loose) check - Open circuit/loose connection in wiring of
corresponding knock sensor or knock sensor
faulty check Knock Sensors (KS) 1 -G61- and
2 -G66- page 28
-29

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jection
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01-110

For troubleshooting
Display groups 011, 012,
013
Malfunction cause found: Yes
No

- Erase DTC memory, test drive and
after test drive, check DTC memory
again

Was the control limit reached on only
one cylinder? (e.g. only P1328 is in the
DTC memory)
Yes

- Abnormal engine noises (e.g.
subassemblies loose) check - Check engine for mechanical damage

Malfunction cause found: Yes


- Erase DTC memory, test drive and
after test drive, check DTC memory
again
Notes:

The malfunction "P1325 / 17733" and/or "P1326 / 17734" and/or "P1327 / 17735" is set as soon as the ignition angle is
fully retarded for longer than 180 sec during the trip.
Pa
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) - Multi
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jection
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)
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pair&id=AUDI.B5.FU01.01.1