sensor AUDI A4 1995 B5 / 1.G AFC Engine On Board Diagnostic Multiport Fuel Injection Owners Manual

01-118


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:
The malfunction "P1391 / 17799" is set as soon as the crankshaft position sensor signal is always "low" at an engine speed
between 50 RPM and 400 RPM and with more than 3 crankshaft sensor signals recognized.
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01-119

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

Malfunction repair
P1392 / 17800
Camshaft Pos.Sensor Open
Circ. (B2)
Short to B+ 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
P1340 / 17748
Camshaft/Crankshaft
Pos.Sens.Signals (B2)
Out of Sequence

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
Continued next page

- Erase DTC memory, test drive and
after test drive, check DTC memory
again
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01-120


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

- 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

check DTC memory and test drive check DTC
memory
Notes:

The malfunction "P1392 / 17800"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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01-122

Output on GST and/or on
VAG 1551 scan tool Possible malfunction
cause
Malfunction repair
P1396 / 17804
Engine Speed Sensor
Missing Tooth Starter ring gear
damaged (teeth broken off)


- Remove starter and carry out visual inspection of the
starter ring gear. If broken teeth are found, replace
starter ring gear
MIL Status:
MIL lights up immediately Malfunction cause found:
Yes


- Erase DTC memory, test drive and after test drive,
check DTC memory again
For troubleshooting
Display group 037

Note:
The malfunction "P1396 / 17804" is set when the engine speed sensor does not supply 270 engine speed pulses per engine
revolution.
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01-125

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

Malfunction repair
P1407 / 17815
EGR Temp.Sensor
Signal too Low Harness connector for EGR
temperature sensor -G98- 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 to EGR temperature
sensor -G98- faulty or sensor -G98- faulty

- Check EGR temperature sensor -G98-
page 24
-71


Malfunction cause found: Yes
No

- Erase DTC memory, test drive and after test
drive, check DTC memory again
For troubleshooting
Display group 017
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:
The malfunction "P1407 / 17815" is set after a cold start (coolant starting temperature less than 30 C (86 F) as soon as an
EGR temperature signal is received that lies over 200 C (392 F)
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01-126

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

Malfunction repair
P1408 / 17816
EGR Temp.Sensor
Signal too High Harness connector for EGR
temperature sensor -G98- 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 to EGR temperature
sensor -G98- faulty or sensor -G98- faulty

- Check EGR temperature sensor -G98-
page 24
-71


Malfunction cause found: Yes
No

- Erase DTC memory, test drive and after test
drive, check DTC memory again
For troubleshooting
Display group 017
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:
The malfunction "P1408 / 17816" is set with open idle switch, a coolant temperature greater than 72 C (162 F), a throttle
angle less than 42.5 , a vehicle speed between 70 km/h and 105 km/h (44 and 66 mph), an EGR valve duty cycle greater
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01-132


Closed Throttle (CTP) switch -F60- in Throttle
Position Sensor does not close or is faulty

- Check Closed Throttle (CTP) switch -F60- and adjust page 24
-73


Malfunction cause found: Yes
No

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

1st stage of throttle sticks

- Check throttle body for mechanical damage

Malfunction cause found: Yes
No

- Erase DTC memory, test drive, 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:
The malfunction "P1505 / 17913" is set after 500 RPM has been exceeded (during start) and then a trip of at least 20 minutes
at under 100 km/h (63 mph) as soon as the idle switch has not been recognized as closed even once.
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01-133

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

Malfunction repair
P1506 / 17914
CTP Switch does not
Open
Short to Ground Harness connector on Throttle Position (TP)
sensor -G69- and Closed Throttle (CTP) switch -
F60- 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 Closed Throttle (CTP) switch -F60- in the
Throttle Position Sensor does not open or is
faulty

- Check and adjust idle switch page 24
-73

Note:
Malfunction P0120 /
16504 is also stored Malfunction cause found: Yes
No

- Erase DTC memory, test drive and
after test drive, check DTC memory
again
For troubleshooting
Display groups 000,
002, 004
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:
Pa
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01-141

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

Malfunction repair
P1606 / 18014
Rough
Road/Acceleration
Sensor
Electrical Malfunction Was an exhaust test carried out in
which only the front axle was moved
and the rear axle was stationary?

- These conditions cause a malfunction to be
stored in the DTC memory. During exhaust tests,
the fuse must be removed from the ABS control
module. After the exhaust test, ABS control module
and engine control module DTC memory must be
erased.

Malfunction cause found: Yes
No

- Erase DTC memory, test drive and after test
drive, check DTC memory again
MIL Status:
Malfunction not
displayed by MIL If there are ABS system
malfunctions, the malfunctions P1606 /
18014 are also stored in the engine
control module. Is a malfunction stored
in the ABS control module?

Repair Manual, Brake System On Board
Diagnostic (OBD), Repair Group 01, On Board Diagnostic (OBD)
- Check DTC memory of ABS control module

Malfunction cause found: Yes
No

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

Wiring connection between Engine
Control Module (ECM) -J192- and
ABS control module -J104- faulty

- Check signal for rough road recognition from ABS
control module for ABS/EDL and/or ABS/ASR
page 24
-109

Notes:
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01-156
Display group overview with test table

Note:
Display groups 000 to 010 are used for general troubleshooting.
Display group
Display shows
Designation
000 Basic setting 0
1 2 3 4 5 6 7 8 9 10 Key to displays page 01
-163

001 Basic setting 1
1 2 3 4 1 = Engine coolant temperature
2 = Mass Air Flow (MAF) sensor output voltage
3 = Altitude display (only on vehicles with secondary air system )
4 = Engine Control Module (ECM) voltage supply
002 Basic setting 2
1 2 3 4 1 = Throttle Position (TP) sensor voltage (coarse)
2 = Throttle Position (TP) sensor voltage (fine)
3 = Throttle Position (TP) sensor learning value
4 = Closed Throttle Position (CTP) switch
003 Basic setting 3
1 2 3 4 1 = Engine speed (RPM)
2 = Engine load
3 = Throttle angle
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