PCM pinout diagrams

[RedHeartbeat]

2001 silverado (Thanks Banker099)



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Powertrain Control Module (PCM) C1 (BLU)



Connector Part Information
• PCM Connector C1 Assembly 12191489

• TPA (BLU) 12176408

• Connector Cover 12191108

Pin
Wire Color
Circuit No.
Function

1
BLK/WHT
451
Ground

2
LT GRN
1867
12 Volt Reference

3
PNK/BLK
1746
Fuel Injector 3 Control

4
LT GRN/BLK
1745
Fuel Injector 2 Control

5-10
--
--
Not Used

11
LT BLU
1876
Knock Sensor 2 Signal

12
DK BLU/WHT
1869
CKP Sensor Signal

13
ORN/BLK
463
Requested Torque Signal

14
ORN/BLK
1061
UART Serial Data [Secondary]

15
DRK BLU/WHT
774
UART Serial Data [Tertiary]

16
--
--
Not Used

17
DK BLU
1225
Transmission Fluid Pressure Switch Signal B

18
RED
1226
Transmission Fluid Pressure Switch Signal C

19
PNK
439
Ignition 1 Voltage

20
ORN
440
Battery Positive Voltage

21
YEL
1868
Low Reference

22
--
--
Not Used

23
PPL
719
Low Reference

24
--
--
Not Used

25
TAN
1671
HO2S Low Signal [- Bank 2 Sensor 1]

25
TAN
413
HO2S Low Reference (Denso Sensors) HO2S Low Signal (Delphi Sensors)

26
TAN
1667
HO2S Low Signal [- Bank 2 Sensor 2]

26
TAN
413
HO2S Low Reference (Denso Sensors) HO2S Low Signal (Delphi Sensors)

27
--
--
Not Used

28
TAN/WHT
1669
HO2S Low Signal [- Bank 1 Sensor 2]

28
TAN
413
HO2S Low Reference (Denso Sensors) HO2S Low Signal (Delphi Sensors)

29
TAN/WHT
1653
HO2S Low Signal [- Bank 1 Sensor 1]

29
TAN
413
HO2S Low Reference (Denso Sensors) HO2S Low Signal (Delphi Sensors)

30
LT GRN
1478
Coolant Level Switch Signal

31
--
--
Not Used

32
BLK/WHT
771
Transmission Range Switch Signal A

33
PPL
420
TCC Brake Switch Signal

34
WHT
776
Transmission Range Switch Signal P

35
GRA
48
CPP Switch Signal

36
BLK
1744
Injector 1 Control

37
YEL/BLK
846
Injector 6 Control

38
PNK/WHT
1101
Damping Lift/Dive Signal

39
--
--
Not Used

40
BLK/WHT
451
Ground

41
BLK
407
Low Reference

41
GRA
720
Low Reference (w/o Delphi HO2S)

42
--
--
Not Used

43
RED/BLK
877
Fuel Injector 7 Control

44
LT BLU/BLK
844
Fuel Injector 4 Control

45
GRA
474
5 Volt Reference (FTP Sensor)

46
GRY
474
5 Volt Reference (TPS Sensor)

47
GRY
597
5 Volt Reference (MAP Sensor)

48
GRA
596
5 Volt Reference (EGR Sensor)

49 50
--
--
Not Used

51
DK BLU
496
KS [1] Signal

52
--
--
Not Used

53
BLK
470
Low Reference

54
BLK
452
Low Reference

55
BRN
1456
EGR Valve Position Signal

56
--
--
Not Used

57
ORN
440
Battery Positive Voltage

58
DK GRN
1049
ECM/PCM/VCM Class 2 Serial Data

59
YEL
710
Class 2 Serial Data

60
ORN/BLK
469
Low Reference

61
PNK/BLK
632
Low Reference

62
--
--
Not Used

63
GRA
720
Low Reference

63
TAN
413
HO2S Low Reference (Denso Sensors) HO2S Low Signal (Delphi Sensors)

64
--
--
Not Used

65
PPL
1670
HO2S High Signal [- Bank 2 Sensor 2]

66
PPL
1666
HO2S High Signal [- Bank 2 Sensor 1]

67
--
--
Not Used

68
PPL/WHT
1668
HO2S High Signal [- Bank 1 Sensor 2]

69
PPL/WHT
1665
HO2S High Signal [- Bank 1 Sensor 1]

70
BRN
1174
Oil Level Switch Signal

71
--
--
Not Used

72
YEL
772
Transmission Range Switch Signal B

73
BRN/WHT
633
CMP Sensor Signal

74
YEL
410
ECT Sensor Signal

75
PNK
1020
Off/Run/Crank Voltage

76
BLK/WHT
845
Fuel Injector 5 Control

77
DK BLU/WHT
878
Fuel Injector 8 Control

78
--
--
Not Used

79
WHT
687
3-2 Shift Solenoid Valve Control

80
ORN/BLK
510
Low Reference
This image has been resized. Click this bar to view the full image. The original image is sized 799x247 and weights 17KB.


• TPA (RED) 12176410

• Connector Cover 12191108

Pin
Wire Color
Circuit No.
Function

1
BLK/WHT
451
Ground

2
BRN
418
TCC PWM Solenoid Valve Control

3
TAN
1465
Fuel Pump Relay Control [- Secondary]

4
--
--
Not Used

5
TAN/BLK
464
Delivered Torque Signal

6
RED/BLK
1228
PC Solenoid Valve High Control (Sol. A)

7
RED
1676
EGR Valve Supply Voltage (5 Volt)

8
LT BLU/WHT
1229
PC Solenoid Valve Low Control (Sol. A)

9
DK GRN/WHT
465
Fuel Pump Relay Control [- Primary]

10
WHT
121
Engine Speed Signal

11
DK BLU
604
A/C High Pressure Recirculation Switch Signal

12
--
--
Not Used

13
LT BLU/BLK
396
Cruise Control Engaged Signal

14
--
--
Not Used

15
BRN
25
Charge Indicator Control

16
GRY/BLK
1694
4WD Low Signal

17
DK GRN/WHT
2523
A/C Request

18
--
--
Not Used

19
BLK/WHT
1695
Axle Switch Signal

20
LT GRN/BLK
822
VSS Low Signal

21
PPL/WHT
821
VSS High Signal

22
RED/BLK
1230
AT ISS High Signal

23
DK BLU/WHT
1231
AT ISS Low Signal

24
--
--
Not Used

25
TAN
472
IAT Sensor Signal

26
PPL
2121
IC 1 Control

27
RED
2127
IC 7 Control

28
LT BLU/WHT
2126
IC 6 Control

29
DK GRN/WHT
2124
IC 4 Control

30
--
--
Not Used

31
YEL
492
MAF Sensor Signal

32
LT GRN
432
MAP Sensor Signal

33
DK GRN
1614
Recirculation Actuator Control

34
DK GRN/WHT
428
EVAP Canister Purge Solenoid Control

35
--
--
Not Used

36
BRN
436
AIR Pump Relay Control

37-38
--
--
Not Used

39
RED
631
12 Volt Reference

40
BLK/WHT
451
Ground

41
WHT
257
EGR Solenoid Control

42
TAN/BLK
422
TCC Solenoid Valve Control

43
DK GRN/WHT
459
A/C Compressor Clutch Relay Control

44
--
--
Not Used

45
WHT
1310
EVAP Canister Vent Solenoid Control

46
BRN/WHT
419
MIL Control

47
YEL/BLK
1223
(2-3 Shift Solenoid or Shift Soleniod B) Valve Control

48
LT GRN
1222
(1-2 Shift Solenoid or Shift Soleniod A) Valve Control

49
YEL/BLK
1827
Vehicle Speed Signal

50
DK GRN/WHT
817
VSS Signal

51
YEL/BLK
1227
TFT Sensor Signal

52
GRA
23
Generator Field Duty Cycle Signal

53
--
--
Not Used

54
PPL
1589
Fuel Level Sensor Signal [- Primary]

55
DK GRN
603
A/C Low Pressure Switch Signal

56
--
--
Not Used

57
BLK
552
Low Reference

58-59
--
--
Not Used

60
BRN
2129
Low Reference

61
BRN/WHT
2130
Low Reference

62
GRA
773
Transmission Range Switch Signal C

63
PNK
1224
Transmission Fluid Pressure Switch Signal A

64
DK GRN
890
Fuel Tank Pressure Sensor Signal

65
--
--
Not Used

66
PPL/WHT
2128
IC 8 Control

67
RED/WHT
2122
IC 2 Control

68
DK GRN
2125
IC 5 Control

69
LT BLU
2123
IC 3 Control

70-71
--
--
Not Used

72
BLK/WHT
3122
HO2S Heater Low Control [- Bank 2 Sensor 1]

73
DK BLU
1936
Fuel Level Sensor Signal [- Secondary]

74
LT GRN/WHT
3213
HO2S Heater High Control [- Bank 2 Sensor 1]

75
--
--
Not Used

76
LT GRN/WHT
1749
IAC Coil B High Control

77
LT GRN/BLK
444
IAC Coil B Low Control

78
LT BLU/BLK
1748
IAC Coil A Low Control

79
LT BLU/WHT
1747
IAC Coil A High Control

80
LT GRN

[RedHeartbeat]

[low91]

Got any for DBW?

[joakwin]

97/98-04/05 vette/early suv 01 dbw tb



tp sensor

[joakwin]

newer dbw set up

[RedHeartbeat]

Nice!

[GAMEOVER]

Would you guys happen to have the wiring schematic for the PNP or PRNDL or gear position switch (12pin connector) located on driver side of a 2005 2WD Silverado w/ 4L60E trans? Original harness & connector were damaged beyond repair, bought new harness w/connector but can't figure out where they get connected to or which Pins on PCM they get pinned into...

Thanks in advance

[Speedo]

Can anyone tell me if the pinout for a 1999 5.3 is the same as the 2001 posted in this thread?

Gus

[dustiebutt]

I am using the PCM #12597121 (58x reluctor) from a 2007 NBS ,along with the wiring harness (has no tac module) and pedal setup for my LS2......I want to get started seperating unneeded wires and such....where could I find the pin out chart and other related info for this wiring set up? I understand it is not a huge deal to link the cruise mode from the new setup to the '93 GMT400 harness? Thanks

[RedHeartbeat]

I am using the PCM #12597121 (58x reluctor) from a 2007 NBS ,along with the wiring harness (has no tac module) and pedal setup for my LS2......I want to get started seperating unneeded wires and such....where could I find the pin out chart and other related info for this wiring set up? I understand it is not a huge deal to link the cruise mode from the new setup to the '93 GMT400 harness? Thanks

IIRC the LS2 came with both reluctors at different year models. Does it have the original crank sensor and if yes, what color is it? If no then look in the hole where the sensor goes, is there one plate in there or two stacked together? 58 will have one and 24 will have two.