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Thread: PCM pinout diagrams

  1. #1
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,689

    PCM pinout diagrams

    2001 silverado (Thanks Banker099)



    This image has been resized. Click this bar to view the full image. The original image is sized 799x247 and weights 17KB.

    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
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,689

    2002 Fbody




    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Nov 2007
    Location
    Spiro, Oklahoma
    Posts
    316
    Got any for DBW?
    1991 Silverado-L33 5.3L, 212/218 .557 .562 115+4, ASP under drive pulley,180* thermostat, 90mm truck intake w/ LS3 throttle body. Shoenfeld conversion headers and duel Flowmaster exhaust. Performabuilt LVL 1 transmission and 23-2500 stall converter.

  4. #4
    Join Date
    Nov 2003
    Location
    england uk/San Diego
    Posts
    93

    dbw tb and tac mod

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



    tp sensor

















    new project
    37 m-series 3/4 ton chevy truck,
    plans: 5.3/4l80e, cut down ford 9 inch, 6piston brakes

  5. #5
    Join Date
    Nov 2003
    Location
    england uk/San Diego
    Posts
    93

    newer dbw set up

    newer dbw set up









    new project
    37 m-series 3/4 ton chevy truck,
    plans: 5.3/4l80e, cut down ford 9 inch, 6piston brakes

  6. #6
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,689
    Nice!
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  7. #7
    Join Date
    May 2008
    Location
    Southwest AZ
    Posts
    82
    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

    2008 2WD Ext Cab 6.0 VMAX--MODS...CL MAF OnlyTUNE w/AFE CAI, Corvette Servo, Flowmaster 50 Series, Innovative LM-2 WBO2
    1998 S-10 4.3 V6-0411 PCM-Crower(Cam, Lifters, Rockers) JE Pistons, T-56 6 Speed, Innovative LM-2 WBO2
    [B]EFI Live FlashScan V2 & AutoCal[B]

  8. #8
    Join Date
    Apr 2004
    Posts
    17
    Can anyone tell me if the pinout for a 1999 5.3 is the same as the 2001 posted in this thread?

    Gus

  9. #9
    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
    '93 Chevy Sport... LS2...T56 Magnum..."Red Rider" under construction.........

  10. #10
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,689
    Quote Originally Posted by dustiebutt View Post
    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.

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