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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 999 (Automatic Transmission - ALLISON (Introduction, Service & Replacement)) >> Component Locator >> Automatic Transmission Related Connectors

Automatic Transmission Related Connectors

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Automatic Transmission Input Speed (AT ISS) Sensor

GM237066Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162194
  • 2-Way F Metri-Pack 150.2 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A RED/BLK 1230 AT ISS High Signal
B DK
BLU/WHT		 1231 AT ISS Low Signal
Automatic Transmission Turbine Speed Sensor

GM237066Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162194
  • 2-Way F Metri-Pack 150.2 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A ORN 1983 Transmission Turbine Speed Switch Signal
B LT BLU 1984 Transmission Turbine Speed Switch Low Reference
Park/Neutral Position (PNP) Switch C1

GM655808Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15324591
  • 4-Way F Metri-Pack 150 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A BLK/WHT 771 Transmission Range Switch Signal A
B GRY 773 Transmission Range Switch Signal C
C WHT 776 Transmission Range Switch Signal P
D YEL 772 Transmission Range Switch Signal B
Park/Neutral Position (PNP) Switch C2

GM535900Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129840
  • 7-Way F Metri-Pack 150 280 (GRY)
Pin Wire Color Circuit No. Function
A ORN/BLK 1786 -
B LT GRN 275 Park Neutral Position Switch Park Signal
C PNK 839 Ignition 1 Voltage
D BLK/WHT 451 Ground and M30/MT1/M74
E PPL/WHT 1035 Starter Relay Coil Supply Voltage
F LT GRN 24 Backup Lamp Supply Voltage
G YEL 1737 Neutral Safety Switch Park/Neutral Signal
Transmission Control Module (TCM) C1

GM698666Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305371
  • 32-Way F Micro-Pack 100 W (CLR)
Pin Wire Color Circuit No. Function
1 BLK/WHT 451 Ground
2 PNK 1020 Ignition 0 Voltage
3 ORN 440 Battery Positive Voltage
4 PNK 1020 Ignition 0 Voltage
5 BLK/WHT 451 Ground
6 YEL 2522 Power Take Off (PTO) Reference Voltage
7 PPL 420 TCC Brake Switch/Cruise Control Release Signal
8 - - Not Used
9 WHT 2467 Throttle Kickdown Signal
10 GRY/BLK 1694 4WD Low Signal
11-15 - - Not Used
16 TAN/BLK 464 Delivered Torque Signal (L18)
17-21 - - Not Used
22 ORN/BLK 463 Requested Torque Signal (L18)
23-24 - - Not Used
25 DK BLU 2466 Trans MIL Request Signal
26 - - Not Used
27 YEL 400 Signal High - Front
28 - - Not Used
29 YEL 2361 CAN Serial Data High
30 YEL 2470 TCM Class 2 Serial Data
31 - - Not Used
32 DK GRN 2362 CAN Serial Data Low
Transmission Control Module (TCM) C2

GM698666Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305371
  • 32-Way F Micro-Pack 100 W (RED)
Pin Wire Color Circuit No. Function
1 PNK 1224 Fluid Pressure Switch Signal C
2 DK BLU 1225 Fluid Pressure Switch Signal D
3 RED 1226 Fluid Pressure Switch Signal E
4 LT GRN/BLK 2529 Fluid Pressure Switch Reverse Signal
5 BLK/WHT 771 Transmission Range Switch Signal A
6 YEL 772 Transmission Range Switch Signal B
7 GRY 773 Transmission Range Switch Signal C
8 WHT 776 Transmission Range Switch Signal P
9 - - Not Used
10 YEL/BLK 1227 TFT Sensor Signal
11-12 - - Not Used
13 ORN 1983 Transmission Turbine Speed Switch Signal
14 LT BLU 1984 Transmission Turbine Speed Switch Low Reference
15 PPL/WHT 821 VSS Signal HI
16 LT GRN/BLK 822 VSS Signal LO
17 RED/BLK 1230 AT ISS High Signal
18 DK BLU/WHT 1231 AT ISS Low Signal
19 - - Not Used
20 BLK 2762 Low Reference
21 PPL 2471 Trans ID
22 LT BLU/WHT 1229 PPC Solenoid A Valve High Control
23 RED/BLK 1228 PPC Solenoid A Valve Low Control
24 PNK/BLK 2468 PPC Solenoid B Valve High Control
25 BRN/WHT 2469 PPC Solenoid B Valve Low Control
26 LT GRN 1222 Shift Solenoid C Valve Control
27 YEL/BLK 1223 Shift Solenoid D Valve Control
28 ORN/WHT 2527 Shift Solenoid E Valve Control
29 BRN 418 TCC PWM Solenoid Valve Control
30 DK BLU 1530 Modulated Main Pressure
31 BRN 323 12 Volt Reference
32 DK GRN/WHT 2528 TCC PWM Solenoid Supply Voltage
Vehicle Speed Sensor (VSS)

GM237066Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162194
  • 2-Way F Metri-Pack 150.2 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A LT GRN/BLK 822 VSS Signal LO
B PPL/WHT 821 VSS Signal HI
Transmission Range Switch, Wiring Harness Side

GM901402Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15416722 BK
  • ASM Conn 12 F GT
Pin Wire Color Circuit No. Function
1 DK GRN 1433 Clutch Start Switch Signal
2 - - Not Used
3 ORN/BLK 1786 Park Neutral Position Switch Signal
4 YEL 772 Transmission Range Switch Signal B
5 BLK/WHT 771 Transmission Range Switch Signal A
6 GRY 773 Transmission Range Switch Signal C
7 BLK/WHT 451 Ground
8 WHT 776 Transmission Range Switch Signal P
9 LT GRN 275 Park Neutral Position Switch Voltage
10 GRY 1524 Back-up Lamp Supply Voltage
11 PNK 839 Ignition 1 Voltage
12 PPL 639 Ignition 1 Voltage
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