sensor AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking

28-49

Camshaft Position (CMP) Sensor 2 -G163
(Bank 2)
3-pin connector on
wiring harness, socket
VAG1598/31 test
box, socket
1 (B+) 98
2 (signal) 86
3 (Ground (GND)) 108
Camshaft Position (CMP) Sensor 1 -G40 (Bank
1)
3-pin connector on
wiring harness, socket
VAG1598/31 test
box, socket
1 (positive) 98
2 (signal) 87
3 (Ground (GND)) 108

Resistance in wiring: max. 1.5 ohm

- Repair any open/short circuit as necessary.
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28-50
If all the test results so far have been OK but a
malfunction related to the camshaft position
sensor (Hall sensor) is displayed again after
erasing the DTC memory as a test measure, the
following might be the cause:

- Rotor ring (trigger wheel) for camshaft position
sensor (Hall sensor) misaligned; test phase
position.

Checking phase position of Hall sensor

- Connect vehicle diagnostic, testing and
information system VAS5051 or VAG1551 scan
tool and select engine electronics control
module by entering address word "01" Page
01
-9 . When doing this the engine must be
idling.
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -8- to select function "Read Measuring Value
Block" and confirm entry with -Q- button.
Read Measurin
g Value Block
Input displa
y group number XXX

Indicated on display:
- Press buttons -0-, -9- and -3- to select "Display Group 093" and
confirm entry with -Q- button.
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e=re
pair&id=AUDI.B5.FU04.28.1

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Read Measuring Value Block 93
1
2
3
4

Indicated on display
- Check specified display values for Hall sensors.

Display fields

1 2 3 4
Display Group 093: Phase positions of Hall sensors (Bank 1 and Bank 2) with engine idling
Display xxx RPM xx %
0 6 KW
0 6 KW
Indicates Engine
speed
(RPM) Engine
load Phase position
Bank 1 Phase position
Bank 2
Work
range min.: 750
RPM
max.: 6800
RPM min.: 15
%
max.:
175 % -20.3 to 14.8 KW
-20.3 to 14.8 KW
Specified
value 750 - 850
RPM
0 6 KW
0 6 KW
Note
If readouts do not match specifications, unbolt Hall sensor and check whether
rotor ring is properly mounted on camshaft. If it is incorrectly mounted, the
locating lug will be flattened when the securing bolt is tightened. Also check
valve timing.
Repair Manual, 2.7 Liter V6 5V BiTurbo Engine Mechanical, Engine Code(s): APB,
Repair Group 13, Crankcase ventilation, Ribbed belt removing and installing, Timing belt removing and installing

Pa
ge 58 of 64 I
gnition s
ystem, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.28.1