heating AUDI A4 1998 B5 / 1.G AFC Engine On Board Diagnostic Multiport Fuel Injection Workshop Manual

01-21

Diagnostic Trouble Code (DTC)
Malfunction text
MIL switching condition
SAE
VAG
P0753 00258 Shift Solenoid A Electrical
P0758 00260 Shift Solenoid B Electrical
P0763 00262 Shift Solenoid C Electrical
P1101 17509 (B1-S1) Voltage too Low/Air Leak immediately
P1102 17510 Heating Circ. (B1-S1) Short to B+ immediately
P1104 17512 (B1-S2) Voltage too Low/Air Leak immediately
P1105 17513 Heating Circ. (B1-S2) Short to B+ immediately
P1106 17514 (B2-S1) Voltage too Low/Air Leak immediately
P1107 17515 Heating Circ. (B2-S1) Short to B+ immediately
P1109 17517 (B2-S2) Voltage too Low/Air Leak immediately
P1110 17518 Heating Circ. (B2-S2) Short to B+ immediately
Pa
ge 32 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

01-40

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

Malfunction repair
P0135 / 16519
O2 Sensor Heater Circuit
Malfunction (Bank 1
Sensor 1) Harness connector for Oxygen Sensor
(O2S) heater -Z19- (B1-S1) 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, installation location page 24
-1

Malfunction cause found: Yes
No

- Erase DTC memory, test drive and check
DTC memory again
MIL Status:
MIL lights up immediately
Wiring connection for Oxygen Sensor
(O2S) heater -Z19- (B1-S1) faulty, or heater
-Z19- faulty

- Check O2S heater -Z19- (B1-S1) page 24
-51


Malfunction cause found: Yes
No

- Erase DTC memory, test drive and check
DTC memory again
For troubleshooting
Display group 040
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 heating of the O2S in front of the Three Way Catalytic Converter (TWC) are switched on by the fuel pump relay.
Pa
ge 53 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

The malfunction "P0135 / 16519" is set as soon after engine start as the heating current, at a battery voltage between 9
volts and 16 volts is between 280 and 520 mA for longer than 1 sec (battery voltage fluctuations).
Pa
ge 54 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

The malfunction "P0136 / 16520" is set, 123 sec after engine start, as soon as the signal voltage during a deceleration fuel
shut off is greater than 300 mV at a coolant temperature over 80 C (176 F) and 45 sec behind the probe heating after the
Three Way Catalytic Converter (TWC) is switched on. The length of the deceleration fuel shut off must be longer than 4 sec.
Pa
ge 56 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

01-92

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

Malfunction repair
P1102 / 17510
Heating Circ. (B1-S1)
Short to B+ Harness connector for Oxygen Sensor
(O2S) heater -Z19- (B1-S1) 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, installation location page 24
-1

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 of Oxygen Sensor
(O2S) heater -Z19- (B1-S1) faulty, or heater
-Z19- faulty

- Check O2S heater -Z19- (B1-S1) page 24
-51


Malfunction cause found: Yes
No

- Erase DTC memory, test drive and after
test drive, check DTC memory again
For troubleshooting
Display group 040
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 heating of the oxygen sensor probes in front of Three Way Catalytic Converter (TWC) is switched on with the fuel
pump relay, i.e. immediately at engine start.
Pa
ge 123 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

The malfunction "P1102 / 17510" is set after engine start as soon as the heating current is greater than 10 A for longer
than 80 ms at a battery voltage between 9 V and 16 V.
Pa
ge 124 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

01-95

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

Malfunction repair
P1105 / 17513
Heating Circ. (B1-S2)
Short to B+ Harness connector for Oxygen Sensor
(O2S) heater -Z29- (B1-S2) 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, installation location page 24
-1

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 of Oxygen Sensor
(O2S) heater -Z29- (B1-S2) faulty, or heater
-Z29- faulty

- Check O2S heater -Z29-(B1-S2) page 24
-55


Malfunction cause found: Yes
No

- Erase DTC memory, test drive and after
test drive, check DTC memory again
For troubleshooting
Display group 040
Engine Control Module (ECM) -J192-
faulty

- Replace and code engine control module
page 01
-265
erase DTC memory and
test drive check DTC memory
Pa
ge 127 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

01-96
Notes:

The heating for Oxygen Sensor Probes behind Three Way Catalytic Converter (TWC) is not switched on immediately at
engine start, but when the calculated exhaust gas temperature drops below 308 C (586 F) ( Read measuring value
block, display group 42, channel 1). The malfunction "P1105 / 17513" is set as soon as the probe heater is switched on (the vehicle must be driven approx. 60
sec. under load) and the heating current is greater than 10 A for longer than 80 ms.
Pa
ge 128 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

01-99

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

Malfunction repair
P1107 / 17515
Heating Circ. (B2-S1)
Short to B+ Harness connector for Oxygen Sensor
(O2S) heater -Z28- (B2-S1) 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, installation location page 24
-1

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 of Oxygen Sensor
(O2S) heater -Z28- (B2-S1) faulty, or heater
-Z28- faulty

- Check O2S heater -Z28- (B2-S1) page 24
-51


Malfunction cause found: Yes
No

- Erase DTC memory, test drive and after
test drive, check DTC memory again
For troubleshooting
Display group 040
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 heating of the oxygen sensor probes in front of Three Way Catalytic Converter (TWC) is switched on with the fuel
pump relay, i.e. immediately at engine start.
Pa
ge 131 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1

The malfunction "P1107 / 17515" is set after engine start as soon as the heating current is greater than 10 A for longer
than 80 ms at a battery voltage between 9 V and 16 V.
Pa
ge 132 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1