air condition AUDI A4 2000 B5 / 1.G 01V Transmission Electrical Testing User Guide

01-291

Resistance measurement: switch multimeter to 20 K measuring range
Test step
VAG
1598/20
sockets Test of
Test
conditions
- Additional
steps Specified
value Corrective action
19 16 + 44 Sensor for
transmission RPM -
G182- Ignition
switched off
- Check wiring per wiring diagram.
Only for hydraulic
control -E17-
2) min.
0.23 K

max.
0.30 K

44 + 34
44 + 54
16 + 54
16 + 34
infinite
1)
- Replace sensor for transmission
RPM -G182- , Fig. 11, Page 01
-
29
.

23 + 34
23 + 54 Shielding for -G182-
Ignition
switched off infinite
1)
- Check wiring per wiring diagram.
1) Switch VAG1526 to highest resistance ( ) measuring range. 2) This test step can only be performed on transmission with hydraulic control E17. For information regarding the
transmission installed:
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01-292

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test
conditions
- Additional stepsSpecified
value Corrective action
20 21 + 22 Transmission Fluid (ATF)
Temperature sensor -G93-
Ignition
switched off
- Check wiring between 88-pin
connector on TCM and 8-pin
connector page 01
-302
.

ATF
temperature
ATF temperature sensor -G93- is
integrated in wiring harness in
transmission. - Check wiring harness in
transmission; replace if necessary.

approx. 20 C
approx. 0.83
K
2)


approx. 60 C
approx. 1.28
K
2)


approx. 120 C
approx. 1.88
K
2)


21 + 34
22 + 28
3)
Ignition
switched off infinite
1)
Repair Manual, 5 Spd. Automatic
Transmission 01V, Repair Group 38
- Remove and install valve body
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01-293

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
21 A) 41 + 28
3)
41 + 34
41 + 55
41 + 26 Wiring to ECM (throttle
signal)
Ignition switched
off ECM
disconnected infinite
1)
- Check wiring per wiring
diagram.

41 + xx
2)

less than 1.5


1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Corresponding terminal assignment at Engine Control Module (ECM)

Electrical wiring diagrams Troubleshooting & Component Locations A) Signal is transmitted to Transmission Control Module (TCM) via the Engine Control Module (ECM). Test is only for vehicles
without CAN-Bus

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01-294

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
22 A) 35 + 28
1)
35 + 34
35 + 55
35 + 26 Wiring to ECM (fuel
consumption/load signal)
Ignition
switched off
- ECM
disconnected more than
40 K
- Check wiring per wiring diagram.
- Disconnect connections to other
components which also receive this
signal and repeat measurement.

35 + xx
2)
less than 1.5


- Check these components for short
circuit if necessary (e.g. on-board
computer).
Change
measuring range
to 20 V Measure
Voltage Repair Manual, Electrical Equipment, Repair Group 01


35 + 34
35 + 28
1)
Ignition
switched on
- ECM
disconnected Approx. 5 V
1) Pin 28 at the control module is vacant for vehicles with 10-pin connector of multi-function switch -F125-.
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01-295

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
23 A) 40 + 28
3)
40 + 34 Wiring to ECM (engine
RPM signal)
Ignition
switched off
- ECM
disconnected 15 - 80 K
- Check wiring per wiring diagram.
- Check on-board computer.

40 + xx
2)
less than 1.5

Repair Manual, Electrical
Equipment, Repair Group 01

24 A) 20 + 28
3)
20 + 34
20 + 55
20 + 26 Wiring to ECM (torque
reduction)
Ignition
switched off
- ECM
disconnected infinite
1)
- Check wiring per wiring diagram.

20 + xx
2)
less than 1.5


1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Corresponding terminal assignment at Engine Control Module (ECM).
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01-296

Resistance measurement: switch multimeter to 2 M measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional steps Specified
value Corrective action
25 A) 51 + 28
3)
51 + 34
51 + 55
51 + 26 Wiring to ECM (upshift/downshift
signal)
Ignition switched
off
- ECM
disconnected infinite
1)
- Check wiring per wiring
diagram.

51 + xx
2)
less than 1.5


1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Corresponding terminal assignment at Engine Control Module (ECM).

Electrical Wiring Diagrams & Component Locations A) Signal is transmitted to Transmission Control Module (TCM) via the Engine Control Module (ECM). Test is only for vehicles
without CAN-Bus

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01-297

Voltage measurement: switch multimeter to 20 V measuring range
Test
step VAG
1598/20sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
26 13 + 34
13 + 6 Tiptronic
switch -
F189- Ignition switched
on
- Selector lever in D
but not in tiptronic gateapprox. 10
V - Check wiring according to wiring
diagram.
Ignition switched
on
- Selector lever
tiptronic gate approx. 20
mV
Repair Manual, 5 Spd. Automatic
Transmission 01V, Repair Group 38
- Check magnet on lateral gate cover
1)
- Repair shift mechanism, if necessary
replace gate cover or circuit board with
Tiptronic switch -F189
1)
- Perform test step 29
1) The Tiptronic Switch -F189- receives its tiptronic gate recognition information or tiptronic up- and down-shift information via
the large magnet which is mounted on the lateral gate cover of the gate cover. If the switch has become detached, the gate
cover must be replaced.
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01-298

Voltage measurement: switch multimeter to 20 V measuring range
Test step
VAG
1598/20sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
27
46 + 54
46 + 55 Tiptronic
Switch -
F189- Ignition switched off
- Selector lever in
Tiptronic gate less than
1.5V With the Tiptronic Switch the driver
can manually select the desired
driving range
2)

Ignition switched on
- Selector lever in
Tiptronic gate and up-
shift switch actuated approx.
battery
voltage - Check wiring according to wiring
diagram. If installed also check
wiring to Tiptronic steering wheel

46 + 34
46 + 6 Ignition switched on
- Selector lever in D
- Selector lever in
Tiptronic gate
- Selector lever in
Tiptronic gate and
downshift switch
activated approx. 12V
Repair Manual, T5 Spd.
Automatic Transmission 01V, Repair Group 37
- Check magnet on lateral gate
cover
1)
- Repair shift mechanism, if
necessary replace gate cover or
circuit board with Tiptronic switch -
F189- 1)
Continued


Ignition switched on
- Selector lever in approx.
15mV - Perform test step 28
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01-299

Voltage measurement: switch multimeter to 20 V measuring range
Test step
VAG1598/20sockets
Test of
Test conditions
- Additional stepsSpecified
value Corrective action
27
cont'd 47 + 34
47 + 6 Tiptronic
Switch -
F189- Ignition switched on
- Selector lever in D
- Selector lever in
Tiptronic gate
- Selector lever in
Tiptronic gate and up -
shift switch activated approx. 12V With the Tiptronic Switch the
driver can manually select the
desired driving range
2)
- Check wiring according to
wiring diagram. If installed also
check wiring to Tiptronic
steering wheel

Ignition switched on
- Selector lever in
Tiptronic gate and
down-shift switch
activated approx.15
mV - Check magnet on lateral gate
cover
1)

46 + 54
47 + 55
Ignition switched off
- Selector lever in
Tiptronic gate less than
1.5V - Repair shift mechanism, if
necessary replace gate cover
or circuit board with Tiptronic
switch -F189-
1)
Continued



Ignition switched off
- Selector lever in
Tiptronic gate and approx.
battery
voltage Repair Manual, 5 Spd.
Automatic Transmission 01V, Repair Group 37

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01-301

Resistance measurement
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
28 A) 85 + 28
3)
85 + 34
86 + 28 3)
86 + 34 Wiring connection of TCM to
ECM (CAN-bus)
Ignition switched
off ECM
disconnected infinite
1)
- Check wiring per wiring
diagram.

85 + xx
2)
86 + xx 2)
less than 1.5

Further information on CAN-bus
page 01
-263

1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Applicable terminal assignment at Engine Control Module (ECM).

Repair Manual, Fuel Injection & Ignition, Repair Group 24
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