Volkswagen 01M Transmission. Manual — part 94

ELECTRONIC COMPONENTS

Input Speed Sensor (G182)

Output Speed Sensor (G195)

The Input Speed Sensor (G182) is located in the
transaxle case below the valve body, as shown in
Figure 6, and retained with a bolt. The ISS has a
White connector that mounts on a bracket with a valve
body bolt and goes through the 8-way case connector,
also shown in Figure 6.
The ISS is triggered by the external lugs on the K-2
clutch housing to determine exact transaxle turbine
speed. 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 Affect 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, no shift adapt operations, no controlled
TCC lock-up (apply and release only) and no pressure
control on garage shifts (N-D, N-R) harsh
engagement.
The Input Speed Sensor is shown in Figure 4.

The Output Speed Sensor (G195) is located in the
transaxle case below the valve body, as shown in
Figure 6, and retained with a bolt. The OSS has a Blue
connector that mounts on a bracket with a valve body
bolt and goes through the 8-way case connector, also
shown in Figure 6.
The OSS is triggered by the external lugs on the
Parking Gear to determine exact transaxle 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 Affect 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 5.

Special Note:
The ISS and OSS are Hall Affect 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.

INPUT SPEED SENSOR

OUTPUT SPEED SENSOR

5.0M Ohms Resistance

at room temperature

5.0M Ohms Resistance

at room temperature

Figure 4

Figure 5

6

Copyright © 2010 ATSG

Copyright © 2010 ATSG

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

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GAU6A06894

DCB6A0906

4

FBX6A0857

4

ABY6A0941

2

CCP6A09214

CCP6A09212

9173

T5

EO

Wiring Harness
from 8 terminal
Case Connector

(ISS, OSS & TFT)

Wiring Harness

from 14 terminal

Case Connector

(All Solenoids)

OSS Blue

Clip Connector

(G195)

ISS White

Clip Connector

(G182)

Transmission

Fluid Temp. Sensor

(G93)

Input Speed

Sensor Location

Output Speed

Sensor Location

Figure 6

SPEED SENSOR LOCATIONS

7

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AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

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8

Copyright © 2010 ATSG

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

GAU6A06894

DCB6A0906

4

FBX6A0857

4

ABY6A0941

2

CCP6A09214

CCP6A09212

9173

T5

EO

Pressure Switch 2

Location (G194)

(If Used)

Pressure Switch 1

Location (G193)

(If Used)

Transaxle Fluid

Temperature Sensor

Retaining Bracket

Transaxle Fluid

Temperature Sensor (G93)

Location

PRESSURE SWITCH AND TEMP SENSOR LOCATIONS

ELECTRONIC COMPONENTS (CONT'D)

Pressure Switches 1 (G193) And 2 (G194)
Some 09G/09M transaxles are equipped with two
pressure switches that screw into the valve body
casting in the locations shown in Figure 7. 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: Both pressure switches were eliminated in all
09G transaxles from June 2004 on.

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

Figure 8

Figure 7

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Copyright © 2010 ATSG

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 7. Notice in Figure 8 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
resistence decreases, as shown in Figure 8.
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 shift adapt
pressures, which usually results in harsh
engagements.

GAU6A06894

DCB6A0906

4

FBX6A0857

4

ABY6A0941

2

CCP6A09214

CCP6A09212

9173

T5

EO

N88

(No. 1 Sol.)

N89

(No. 2 Sol.)

N91

(No. 4 Sol.)

N90

(No. 3 Sol.)

N283

(No. 10 Sol.)

N282

(No. 9 Sol.)

N92

(No. 5 Sol.)

N93

(No. 6 Sol.)

SOLENOID IDENTIFICATION

Solenoid Identification And Location

Figure 9

The 09G/09M 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 9.
There are three different types of solenoids used in
this unit. There are two 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 10 for their individual functions and
Figure 9 for their locations in the valve body.

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