GM Service Manual Online
For 1990-2009 cars only
Table 1: C175 Engine Chassis Harness to Internal Transmission Harness (Allison® LCT)
Table 2: C175 Engine Chassis Harness to Internal Transmission Harness (Allison® MD)

C175 Engine Chassis Harness to Internal Transmission Harness (Allison® LCT)


Object Number: 1608549  Size: CH

Object Number: 1629123  Size: CH

Connector Part Information

    • 15483856
    • 24-Way F 1.5 Series, Sealed (BK)

Connector Part Information

    • 29543014
    • 24-Way M 1.5 Series, Sealed (NA)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

1

BK/D-BU

OA36

Shift Solenoid C Control

1

D-GN

1527

Shift Solenoid 1 Valve Control

2

YE

OA37

Shift Solenoid D Control

2

L-GN

1528

Shift Solenoid 2 Valve Control

3

TN

OA35

Ignition 1 Voltage

3

PU

1529

Shift Solenoid 3 Valve Control

4

RD

OA41

Transmission Fluid Pressure Switch Signal C

4

OG

1224

Transmission Fluid Pressure Switch Signal 1

5

--

--

Not Used

5

--

--

Not Used

6

RD/D-BU

OA43

Transmission Fluid Pressure Switch Signal E

6

GY

1226

Transmission Fluid Pressure Switch Signal 3

7

BK/WH

OA42

Transmission Fluid Pressure Switch Signal D

7

WH

1225

Transmission Fluid Pressure Switch Signal 2

8

YE/BK

OA45

TFT Sensor Signal

8

TN

1227

TFT Sensor Signal

9

BK/WH

OA46

Low Reference

9

BK

407

Low Reference

10

D-GN/WH

OA39

Line Pressure Control Solenoid Valve High Control

10

PK

1531

TCC PWM Solenoid Valve Control

11

D-GN

OA44

Transmission Fluid Pressure Switch Signal R

11

BN

1530

Transmission Fluid Pressure Switch Signal 4 (Reverse)

12-13

--

--

Not Used

12-13

--

--

Not Used

14

D-GN /WH

2528

12-Volt Reference

14

RD

150

12-Volt Reference

15

RD/BK

OA48

PC Solenoid Valve High Control (Sol A)

15

D-BU

1525

PCS Valve 1 Control

16

D-BU

OA49

PC Solenoid Valve Low Control (Sol A)

16

RD/BK

250

12-Volt Reference

17

BK/WH

OA34

PC Solenoid Valve Low Control (Sol B)

17

L-BU

1526

PCS Valve 2 Control

18

OG/BK

1786

Park/Neutral Signal

18

PU/BK

1995

Internal Mode Switch Signal NS

19

D-BU/RD

OA50

Transmission Mainline Pressure Solenoid Control

19

YE

1532

Transmission Mainline Pressure Solenoid Control

20

BN

OA53

Internal Mode Switch Signal C

20

BK/WH

773

Internal Mode Switch Signal C

21

YE

OA52

Internal Mode Switch Signal B

21

TN/WH

772

Internal Mode Switch Signal B

22

BK/WH

OA51

Internal Mode Switch Signal A

22

YE/BK

771

Internal Mode Switch Signal A

23

WH

OA54

Internal Mode Switch Signal P

23

PK/BK

776

Internal Mode Switch Signal P

24

YE/RD

OA47

Trans ID

24

RD

150

Trans ID

C175 Engine Chassis Harness to Internal Transmission Harness (Allison® MD)


Object Number: 216248  Size: CH

Object Number: 1421687  Size: CH

Connector Part Information

    • 29511365
    • 31-Way F Deutsch (NA)

Connector Part Information

    • WT04B24-31PN
    • 31-Way M Deutsch (NA)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

1

RD/D-BU

NF36

12-Volt Reference

1

OG

1991

12-Volt Reference

2

D-BU/WH

NF40

Shift Solenoid C Valve Control

2

L-GN

1527

Shift Solenoid C Valve Control

3

RD/WH

NF41

Shift Solenoid G Valve Control

3

WH

1532

Shift Solenoid G Valve Control

4

D-GN

NF44

5-Volt Reference

4

GY

597

5-Volt Reference

5

D-BU

NF31

12-Volt Reference

5

D-GY

1531

12-Volt Reference

6

WH/BK

NF32

Shift Solenoid F Valve Control

6

WH

1994

Shift Solenoid F Valve Control

7

RD/WH

NF37

Shift Solenoid A Valve Control

7

RD

1525

Shift Solenoid A Valve Control

8

WH/BK

NF33

12-Volt Reference

8

PU

1992

12-Volt Reference

9

D-BU/RD

NF34

Shift Solenoid B Valve Control

9

WH

1526

Shift Solenoid B Valve Control

10

WH/D-GN

NF35

Shift Solenoid E Valve Control

10

PU

1529

Shift Solenoid E Valve Control

11

D-GN/RD

NF39

12-Volt Reference

11

YE

1993

12-Volt Reference

12

YE/RD

NF38

Shift Solenoid D Valve Control

12

D-BU

1528

Shift Solenoid D Valve Control

13

BK

NF46

Low Reference

13

BK

407B

Low Reference

14

YE

NF47

TFT Sensor Signal

14

YE/WH

1227

TFT Sensor Signal

15-18

--

--

Not Used

15-18

--

--

Not Used

19

RD/YE

NF29

Transmission Turbine Speed Switch Low Reference

19

L-BU

1984

Transmission Turbine Speed Switch Low Reference

20

BN/WH

NF30

Transmission Turbine Speed Switch Signal

20

OG

1983BA

Transmission Turbine Speed Switch Signal

21

RD/BK

NF43

Trans ID

21

RD/BK

645B

Trans ID

22

RD

NF42

Transmission Fluid Pressure Switch Signal

22

RD

1226

Transmission Fluid Pressure Switch Signal

23

WH

NF45

Transmission Oil Level Sensor Signal

23

WH

1971

Transmission Oil Level Sensor Signal

24-31

--

--

Not Used

24-31

--

--

Not Used