sensor AUDI A4 1997 B5 / 1.G AFC Engine On Board Diagnostic Multiport Fuel Injection Manual Online

01-104
Notes:

If the malfunction "P1201 / 17609" and/or "P1202 / 17610" and/or "P1203 / 17611" is recognized by the engine control
module, the oxygen sensor control for bank 1 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 stored.
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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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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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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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No
- Erase DTC memory, test drive and after test
drive, check DTC memory again

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

- Knock Sensor for corresponding bank (-G61- or
-G66-) loose and/or tightening torque 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 the wiring of the
corresponding knock sensor or knock sensor
faulty Check Knock Sensors (KS) 1 -G61- and
2 -G66- page 28
-29

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01-113

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

Malfunction repair
P1339 / 17747
Crankshaft Pos./Engine Speed
Sensors Cross connected 3-pin connector from Crankshaft
Position (CKP) sensor -G4- and engine
speed (RPM) sensor -G28-

- Disconnect both 3-pin harness
connectors and connect correctly,
installation location page 28
-7
P0322 / 16706
Ignition/Distributor Engine
Speed Input Circuit
No Signal
MIL Status:
MIL lights up immediately Malfunction cause found: Yes

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

The malfunction "P1339 / 17747" is set when -G4- and -G28- are transposed.
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01-114

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

Malfunction repair
P1340 / 17748
Camshaft/Crankshaft
Pos.Sens.Signals (B2)
Out of Sequence Harness connector on Camshaft Position
(CMP) sensor -G40- loose or corroded due to
moisture in the harness connector

- Check harness connector for tight
fit and contact corrosion, if necessary
reconnect and/or clean
P1392 / 17800
Camshaft Pos.Sensor Open
Circ. (B2)
Short to B+

Malfunction cause found: Yes
No

- Erase DTC memory, test drive and
after test drive, check DTC memory
again
MIL Status:
MIL lights up immediately
Wiring connection to Camshaft Position
(CMP) sensor -G40- faulty or sensor -G40-
faulty

- Check Camshaft Position (CMP)
sensor -G40- page 28
-33

For troubleshooting
Display groups 012, 014
Malfunction cause found: Yes
No
Continued next page

- Erase DTC memory, test drive and
after test drive, check DTC memory
again
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jection
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01-115


Camshaft Position (CMP) sensor -G40- oily or dirty
on the inside because of leaking seal on the cylinder
head.

- Camshaft Position (CMP) sensor -G40- and check for
contamination. If it is oily, replace seal on cylinder head

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
Notes:

The malfunction "P1340 / 17748" is set as soon as the crankshaft position sensor signal is always "high" at an engine
speed between 50 RPM and 4000 RPM and with more than 20 crankshaft sensor signals recognized.
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jection
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01-117

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

Malfunction repair
P1391 / 17799
Camshaft Pos.Sensor
(B2)
Short to Ground Harness connector on Camshaft Position
(CMP) sensor -G40- loose or corroded due
to moisture in the harness connector

- Check harness connector for tight fit and
contact corrosion, if necessary reconnect
and/or clean

Malfunction cause found: Yes
No

- Erase DTC memory, test drive and after
test drive, check DTC memory again
MIL Status:
MIL lights up
immediately Wiring connection to Camshaft Position
(CMP) sensor -G40- faulty or sensor -G40-
faulty

- Check Camshaft Position (CMP) sensor -
G40- page 28
-33


Malfunction cause found: Yes
No

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

Camshaft Position (CMP) sensor -G40-
oily or dirty on the inside because of leaking
seal on the cylinder head

- Remove Camshaft Position (CMP) sensor -
G40- and check for contamination. If it is
oily, replace seal on cylinder head

Malfunction cause found: Yes
No
Continued next page

- Erase DTC memory, test drive and after
test drive, check DTC memory again
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) - Multi
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jection
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)
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