GM Service Manual Online
For 1990-2009 cars only
Table 1: C175 (Allison® LCT)
Table 2: C175 (Allison® MD)

C175 (Allison® LCT)


Object Number: 655729  Size: CH

Connector Part Information

    • 12186609
    • 20-Way F Micro-Pack 100W (GY)

Pin

Wire Color

Circuit No.

Function

A

PU

898

Shift Solenoid C Control

B

YE/BK

2879

Shift Solenoid D Control

C

BN

323

12-Volt Reference

D

PK

1224

Transmission Fluid Pressure Switch Signal A

E

RD

1226

Transmission Fluid Pressure Switch Signal C

F

D-BU

1225

Transmission Fluid Pressure Switch Signal B

G

YE/BK

1227

TFT Sensor Signal

H

BK

2762

Low Reference

J

WH

1994

Shift Solenoid G Control

K

L-GN/BK

2529

Pressure Switch Manifold Reverse

L

RD/BK

1228

PC Solenoid Valve High Control (Sol. A)

M

L-BU/WH

1229

PC Solenoid Valve Low Control (Sol. A)

N

PK/BK

2468

PC Solenoid Valve High Control (Sol. B)

P

BN/WH

2469

PC Solenoid Valve Low Control (Sol. B)

R

D-BU

1530

Transmission Mainline Pressure Solenoid Control

S

D-GN /WH

2528

PC Solenoid Valve Low Control Solenoid G

T

PU

2471

Trans ID

U-V

--

--

Not Used

W

OG/WH

2527

Shift Solenoid C Valve Control

C175 (Allison® MD)


Object Number: 216248  Size: CH

Connector Part Information

    • 29511365
    • 31-Way F Non-Inline (GY)

Pin

Wire Color

Circuit No.

Function

1

RD

1525

12-Volt Reference

2

PU

898

Shift Solenoid C Valve Control

3

WH

2880

Shift Solenoid G Valve Control

4

D-GN

1313

12-Volt Reference

5

D-GN

1531

12-Volt Reference

6

WH

1994

Shift Solenoid D Valve Control

7

OG

1991

Shift Solenoid A Valve Control

8

WH

1526

12-Volt Reference

9

PU

1992

Shift Solenoid B Valve Control

10

OG/WH

2527

Shift Solenoid C Valve Control

11

L-GN

1527

12-Volt Reference

12

YE/BK

2879

Shift Solenoid D Valve Control

13

BK

407

Low Reference

14

YE/BK

1227

TFT Sensor Signal

15-18

--

--

Not Used

19

L-BU

1984

Transmission Turbine Speed Switch Low Reference

20

OG

1983

Transmission Turbine Speed Switch Signal

21

PU

2471

Trans ID

22

RD

1226

Transmission Fluid Pressure Switch Signal C

23

WH

1971

Transmission Oil Level Sensor Signal

24-31

--

--

Not Used