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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L (L65) (Introduction) >> Component Locator >> Powertrain Control Module (PCM) Connector End Views
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Powertrain Control Module (PCM) Connector End Views

PCM Connector C1

GM328562Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12160779
  • 32 Way F Micro-pack 100 Series (BRN)
Pin Wire Color Circuit No. Function
C1 - - Not Used
C2 DK GRN/WHT 762 A/C Request Signal
C3 -- -- Not Used
C4 TAN 472 IAT Sensor Signal
C5 LT BLU 1162 APP Sensor 2 Signal
C6 YEL 505 Glow Plug Relay Control
C7 RED/BLK 1228 PC Solenoid Valve High Control
C8 YEL 1578 Fuel Temperature Signal
C9 YEL/BLK 1227 TFT Sensor Signal
C10 - - Not Used
C11 YEL 410 ECT Sensor Signal
C12 -- -- Not Used
C13 RED 313 Injection Pump Timing Signal
C14 LT GRN 432 MAP Sensor Signal
C15 LT BLU/WHT 1229 PC Solenoid Valve Low Control
C16 - - Not Used
D1 BLU/WHT 1231 AT ISS Low Signal
D2 GRY/BLK 1694 4WD Low Signal (not used)
D3 YEL/BLK 1275 5 Volt Reference
D4 DK GRN 1163 APP Sensor 3 Signal
D5 GRY 120 Fuel Pump Supply Voltage
D6 GRY 1273 Low Reference
D7 BRN 104 Glow Plug Supply Voltage
D8 DK GRN/WHT 465 Fuel Pump Relay Control
D9 PNK/BLK 632 Low Reference
D10 GRY/BLK 87 Cruise Resume/Accel Switch Signal
D11 RED/BLK 1230 AT ISS High Signal
D12 WHT/BLK 1164 5 Volt Reference
D13 GRY 416 5 Volt Reference
D14 GRY 474 5 Volt Reference
D15-D16 - - Not Used
PCM Connector C2

GM255037Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12160778
  • 24 Way F Micro-pack 100 Series (BRN)
Pin Wire Color Circuit No. Function
A1 BLK 491 Low Reference
A2 ORN 1799 High Resolution Signal
A3 BRN 437 Vehicle Speed Signal
A4 BRN/WHT 633 CMP Sensor Signal
A5 YEL 573 CKP Sensor (1) Signal
A6 DK GRN 389 Vehicle Speed Signal
A7 RED/BLK 1031 ITS Coil 1 High
A8 TAN/BLK 1030 ITS Coil 1 Low
A9 ORN/BLK 1032 ITS Coil 2 Low
A10 YEL/BLK 1033 ITS Coil 2 High
A11 GRY 397 Cruise Control ON Switch Signal
A12 PPL 1272 Low Reference
B1 BRN 1271 Low Reference
B2 DK BLU 1161 APP Sensor 1 Signal
B3 BLK/WHT 1695 Axle Switch Signal (not used)
B4 RED 1226 Transmission Fluid Pressure Switch Signal C
B5 DK BLU 1225 Transmission Fluid Pressure Switch Signal B
B6 PNK 1224 Transmission Fluid Pressure Switch Signal A
B7-B8 - - Not Used
B9
  • PPL (A/T)
  • BRN/WHT (M/T)
  • 420 (A/T)
  • 379 (M/T)
 TCC Brake Switch Signal (A/T)
CPP Switch Signal (M/T)
B10 WHT 17 Stop Lamp Switch Signal
B11 DK BLU 84 Cruise Control Set/Coast Switch Signal
B12 BLK 452 Low Reference
PCM Connector C3

GM73157Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110207
  • 32 Way F Micro-pack 100 Series (LT BLU)
Pin Wire Color Circuit No. Function
C1 - - Not Used
C2 TAN 1274 5 Volt Reference
C3 LT GRN 260 Fuel Injection Control
C4 LT GRN 1222 1-2 Shift Solenoid Valve Control
C5 BRN 418 TCC PWM Solenoid Valve Control
C6 YEL/BLK 1223 2-3 Shift Solenoid Valve Control
C7 DK BLU 507 Wait To Start Indicator Control
C8 PPL 1807 Class 2 Serial Data
C9-C10 - - Not Used
C11 PNK 439 Ignition 1 Voltage
C12 PNK 439 Ignition 1 Voltage
C13 ORN 440 Battery Positive Voltage
C14 BRN/WHT 419 MIL Control
C15-C16 -- -- Not Used
D1-D2 -- -- Not Used
D3 LT GRN/BLK 260 Fuel Injection Control
D4 - - Not Used
D5 DK GRN/WHT 459 A/C Compressor Clutch Relay Control
D6 BLK/WHT 451 Ground
D7 TAN/WHT 551 Ground
D8-D10 - - Not Used
D11 WHT/BLK 176 Service Throttle Soon Indicator Control
D12 -- -- Not Used
D13 ORN 440 Battery Positive Voltage
D14 YEL 258 Wastegate Solenoid Control
D15 DK BLU/WHT 259 Engine Shut Off Control
D16 - - Not Used
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