sensor AUDI A8 1997 D2 / 1.G 01V Transmission Electrical Testing Workshop Manual

01-277
88-pin connector for Transmission Control Module (TCM) -J217- (sockets on VAG1598/20)
1- Solenoid valve 5 -N92- 18-
Kick-down switch -F8- (not for E-gas and V6-TDI)
2- Shift lock solenoid -N110- 19-
Control input to transmission from ABS control module
3- Vacant 20-
Engine intervention (via ignition timing)
1)
4- Solenoid valve 7 -N94- 21-
ATF temperature sensor -G93-
5- Solenoid valve 4 -N91- 22-
ATF temperature sensor -G93-
6- Ground (GND) for power consumers, term.
31 23-
Sensor for transmission RPM -G182- (shielding)
7- Vacant 24-
Vacant
8- Multi-function TR switch -F125-, L2 25-
Selector lever display (not for Highline combi)
9- Multi-function TR switch -F125-, L4
supply voltage for cruise control system 26-
Supply voltage (terminal 30) with or without fuses depending on
model wiring diagram
10-
Brake light switch -F- (not for E-gas and
V6-TDI) 27-
Kick-down for air conditioning
1)
11-
Vacant 28-
Ground (GND) for electronics (terminal 31)
4)
12- Vacant 29- Solenoid valve 6 -N93-
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13-
Tiptronic recognition 30-
Solenoid valve 1 -N88-
14-
Transmission VSS -G38- 31-
Vacant
15-
Transmission VSS -G38- (shielding) 32-
Solenoid valve 3 -N90-
16-
Sensor for transmission RPM -G182- 33-
Solenoid valve 2 -N89-
17-
Signal for malfunction monitor (OBD II -
request)
1) 2) 34-
Ground (GND) for power consumers (terminal 31)
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01-278

35- Fuel consumption signal
(engine torque, actual)
1) 54- Supply voltage (terminal 15)
36- Multi-function TR switch -F125-, L1 55- Supply voltage (terminal 15)
37- Multi-function TR switch -F125-, L3 56- Vacant
38- Vacant -
39- Vacant -
40-
Engine speed (RPM) signal
1)
-
41-
Throttle position value (load signal)
1)
-
42- Transmission VSS -G38- -
43- Vacant -
44- Sensor for transmission RPM -G182- - Terminals 57 - 83 are vacant
45- Vacant -
46- Tiptronic upshift switch -
47- Tiptronic downshift switch -
48- Vacant -
49- Vacant 84- Vacant
50- Vacant 85-
CAN-bus
3)
51- Upshift/downshift signal
(for engine torque reduction) 86-
CAN-bus 3)
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01-280
List of test steps (88-pin connector)

Only perform test steps for the relevant component, as listed in DTC and Read Measuring Value Block tables.
Item checked
Item checked
Supply voltage for TCM -J217-
- Perform test
steps 1 and 7 Solenoid valve 5 -N92- (Pressure control
valve -2- -N216-) - Perform test steps 13
and 8
Shift lock solenoid -N110-
- Perform steps 2,
6 and 16 Solenoid valve 6 -N93- (pressure control
valve -3- -N217-) - Perform test steps 14
and 8.
Brake light switch -F-
- Perform test
step 3. Solenoid valve 7 -N94- (pressure control
valve -4- -N218-) - Perform test steps 15
and 8.
Supply voltage for cruise
control system - Perform test
step 4. Transmission VSS -G38- (Sensor for
transmission output RPM -G195-) - Perform test step 18.
Kick-down switch -F8-
(not for E-gas) - Perform test
steps 5 and 17 Sensor for transmission RPM -G182-
- Perform test step 19.
Multi-function TR switch
(driving range sensor) -F125- - page 01
-322
ATF temperature sensor -G93-
- Perform test step 20.
Solenoid valve 1 -N88-
- Perform test
steps 8 and 9 Wiring connection to ECM
1)
- Perform test steps 21,
22, 23, 24, and 25
1) 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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01-284

Voltage measurement: switch multimeter to 20 V measuring range
Test step
VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
5
1)
not for E-gas
engines 18 + 54 Kick-down
switch -F8-
Ignition switched on
- Depress accelerator to
kick-down approx. battery
voltage
Repair Manual, General,
Engine, Repair Group 20 - Check wiring per wiring
diagram.
- Adjust or replace accelerator
pedal cable.
- Perform test step 17.
1) This test cannot be performed on vehicles with E-gas. The kick-down switch -F8- in this case is integrated in the Throttle
Position (TP) Sensor (-G79-, -G185-).
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1) Switch VAG1526 to highest resistance ( ) measuring range. 2) This test cannot be performed on vehicles with E-gas. The kick-down switch -F8- in this case is integrated in the Throttle
Position (TP) Sensor (-G79-, -G185-). 3) Solenoid for shift lock -N110- is also referred to as shift lock solenoid -N110-
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01-290

Resistance measurement: switch multimeter to 20 K measuring range
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
18 14 + 42 Transmission VSS -
G38-
2)
Ignition
switched off
- Check wiring per wiring diagram.
min.
0.8 K

max.
1.2 K


14 + 34
14 + 54
42 + 54
42 + 34
infinite
1)
- Replace transmission VSS -G38-, Fig. 10, Page 01
-28
.

15 + 34
15 + 54 Shielding for -G38-
Ignition
switched off infinite
1)
- Check wiring per wiring diagram.
1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Transmission Vehicle Speed Sensor (VSS) -G38- is also referred to as Sensor for Transmission Output RPM -G195-.
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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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