Volkswagen 01M Transmission. Manual - part 37

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

ELECTRONIC COMPONENTS

Input Speed Sensor (G182)
   The Input Speed Sensor (G182) is located in the
transmission oil pump stator, as shown in Figure 7,
and retained with a bolt.   The ISS has a Yellow
connector that mounts on the back side of the oil pump
body and is also retained with a bolt, as shown in
Figure 7. The ISS signal is routed through the 8-way
case connector.
   The ISS is triggered by rotor teeth on the turbine
shaft to determine exact transaxle turbine speed, as
shown in Figure 7.   The TCM uses this information to
control line pressure for garage shifts, control and
monitor torque converter lock-up clutch, monitor
gear ratios and diagnosis of shift components via the
Dynamic Shift Program (DSP), which is VW's name
for the shift adapt feature in the TCM.
   The ISS is based on the Hall Effect principle. The
signal is a square-wave signal whose frequency is
proportional to turbine shaft speed.   Should the Input
Speed Sensor fail, the engine RPM sensor is used as a
back-up, but when engine RPM sensor is used there
will be no shift adapt operations, no controlled pulse
width modulation for   TCC lock-up (apply and
release only) and no pressure control on garage shifts
(N-D, N-R) which will create harsh garage shift
engagements.
   The Input Speed Sensor is shown in Figure 6.

INPUT SPEED SENSOR (G182)

5.0M Ohms Resistance

at room temperature

ISS (G182)

Location

ISS (G182)

Rotor Teeth

3 U

Figure 6

Figure 7

Special Note:
   The ISS and OSS are Hall Effect Sensors and
should be checked using a scope under operating
conditions.   The resistance values provided in the
Figures below are from new sensors.   Resistance
checks on these type of sensors would, at best,
inform you of either open or grounded circuits
within the sensor itself.

WWW.ALL-TRANS.BY

50 50

63 63

142

Output Speed Sensor (G195)
   The Output Speed Sensor (G195) is located in the
transmission case below the valve body, as shown in
Figure 9, and retained with a bolt.   The OSS has a
White connector that mounts on one of the solenoid
pin retaining brackets on the valve body. The OSS
signal is fed through the 8-way case connector.
   The OSS is triggered by the external lugs on the rear
planetary ring gear, to determine exact transmission
output shaft speed.   The TCM uses this information to
determine shift points, control and monitor torque
converter lock-up clutch, monitor gear ratios and
diagnosis of shift components via the Dynamic Shift
Program (DSP), which is VW's name for the shift
adapt feature in the TCM.
   The OSS is based on the Hall Effect principle. The
signal is a square-wave signal whose frequency is
proportional to output shaft speed.   Should the Output
Speed Sensor fail, the speed signal from the ABS
Control Module is used as back-up, with limited shift
adapt capability.
   The Output Speed Sensor is shown in Figure 8.

OUTPUT SPEED SENSOR (G195)

5.0M Ohms Resistance

at room temperature

Figure 8

Figure 9

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

31 OUTPUT SPEED SENSOR AND CONNECTOR ASSEMBLY.
32 OSS AND RETAINER BOLTS, 11.5 MM (0.452") LONG (2 REQ).
33 OUTPUT SPEED SENSOR HARNESS RETAINER.

WWW.ALL-TRANS.BY

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

Pressure Switch 2

Location (G194)

Pressure Switch 1

Location (G193)

Temp Sensor

Location (G93)

(Some Models Only)

ELECTRONIC COMPONENTS (CONT'D)

Pressure Switches 1 (G193) And 2 (G194)
   Some "09D" transmissions are equipped with two
pressure switches that screw into the valve body
casting in the locations shown in Figure 10.   Both
switches are "normally open" switches that connect to
ground when pressure exceeds approx. 44 psi and are
used to verify valve movement in the valve body
assembly.
   Pressure Switch 1 (G193) is used to verify activation
of the K-1 clutch.
   Pressure Switch 2 (G194) is used to verify activation
of the B-2 clutch.   Therefore, pressure switch 2 is
closed in tiptronic mode only, 1st gear. The only other
time the B-2 clutch is required is in reverse (R) gear.
Pressure Switch 2 does not close in the reverse
position, as reverse is engaged by the manual valve
hydraulically.
  Note: Pressure switches are used only on some
   models equipped with the "09D" transmission.

TRANSAXLE FLUID TEMP SENSOR (G93)

Temperature F° (C°)

-22°F (-30°C)

50°F (10°C)

77°F (25°C)

230°F (110°C)

293°F (145°C)

Resistance

37K - 51K Ohms

5K - 8K Ohms

3K - 5K Ohms

230 - 265 Ohms

100 - 120 Ohms

"O" RING

FLUID TEMP

SENSOR

A-3

AIS

8 8

6 0

8 8

6 0

8 8

6 0

8 8

6 0

N3K01

9AN3K0

8BA

3K01631

N3K01

748

9AN3K0

1742

4AM3K03O1

PRESSURE SWITCH AND TEMP SENSOR LOCATIONS

12.0 MM (0.472")

LENGTH

Figure 10

Figure 11

Continued on Page 10

WWW.ALL-TRANS.BY

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

ELECTRONIC COMPONENTS (CONT'D)

Transaxle Fluid Temp Sensor (G93)
   The Transaxle Fluid Temp Sensor (G93) is located in
the valve body and is mounted with a retaining plate,
as shown in Figure 10.   Notice in Figure 11 that an "O"
ring is required, as it is mounted into an oil passage.
The TFT is an integral part of the 8-way case
connector and wire harness assembly.
   The TFT is a negative temperature coefficient
sensor, which means that as temperature rises the
resistance decreases, as shown in Figure 11.
   Starting at 150°C (270°F), the converter clutch is
applied more frequently. If this does not result in
cooling of the ATF, reduction of engine torque is
initiated at 170°C (306°F).
   Should the TFT fail, a substitute value is generated
from the engine temperature and operating duration.
There will be no controlled operation (ramping) of the
converter clutch (ON or Off only) and no controlled
shift adapt pressures, which usually results in harsh
engagements.

Solenoid Identification And Location
   The 09D transmission uses a total of 8 different
solenoids located in the valve body that are used to
apply or release the clutches, control the main line
pressure and apply or release the torque converter
clutch.   They are identified and their locations are
shown in Figure 12.
   There are three different types of solenoids used in
the "09D" transmission.   There are two "Normally
Closed" On/Off solenoids, one "Normally Vented"
Pulse Width Modulated (PWM) solenoid, and the
other five are "Normally Applied" Pulse Width
Modulated (PWM) solenoids.
   Refer to Figure 13 for their individual functions and
Figure 12 for their locations in the valve body.

A-3

AISIN

AIS

8 8

6 0

8 8

6 0

8 8

6 0

8 8

6 0

9AN3K01755

9AN3K

01762

8BA3

K01

9AN3K01748

9AN3K

017

4AM3K03O18

SOLENOID IDENTIFICATION AND LOCATIONS

N88 Solenoid

(On-Off)

N91 Solenoid

(TCC)

N282 Solenoid

(K2 Clutch)

N283 Solenoid

(B1 Clutch)

N93 Solenoid

(Line Pres)

N90 Solenoid

(K3 Clutch)

N92 Solenoid

(K1 Clutch)

N89 Solenoid

(On-Off)

Figure 12

WWW.ALL-TRANS.BY

Content .. 35 36 37 38 ..