What are the color of the PCM connectors?

C1 Blue. C2 Red . C3 Clear -or Grey- . C4 Black . Here are some very important safety precautions when testing the wires coming out of the PCM connectors. If one or any of the wires on your GM vehicle DO NOT match the color stated in the Pin Out Charts, then you should not use the Pin Out charts in this article. Why?

Is it safe to use PCM pin out charts?

C4 Black . Here are some very important safety precautions when testing the wires coming out of the PCM connectors. If one or any of the wires on your GM vehicle DO NOT match the color stated in the Pin Out Charts, then you should not use the Pin Out charts in this article. Why?

How to navigate to a different PCM connector?

To navigate to a different PCM connector, use the links below: C1 Blue. C2 Red . C3 Clear -or Grey- . C4 Black . Here are some very important safety precautions when testing the wires coming out of the PCM connectors.

Do you need to remove wires from PCM connectors?

BLOCKS HIGHLIGHTED LIKE THIS, ARE WIRES THAT ARE NEEDED, AND GO TO EXTERNAL CONNECTION FOR STAND ALONE BLOCKS HIGHLIGHTED LIKE THIS, ARE WIRES THAT CAN BE REMOVED FROM PCM CONNECTORS, NOT NEEDED. Note: Removing all of thesewill result in a non-emissions friendly harness.

Where can I find a PCM wiring diagram?

Wire Diagram For 01 5 3 Vortec Engine Swap The 1947 Present Chevrolet Gmc Truck Message Board Network Diagram Ford Pcm Wiring Full Version Hd Quality Jdiagram Politopendays It 5 3 Wiring Harness Diagrams Here Ls1tech Camaro And Firebird Forum Discussion Ford V10 Pcm Wiring Diagram Load Bike Reference Ristorantesicilia It

Is there a printout of the PCM pinout?

PCM Pinout? Does anyone have a printout of the pcm pinout for a 99 Silverado 5.3L/4L60e? Or a link to where I can get one? I can print a paper copy, thats about it. No good to you that way. Could you scan it after you print it?

Where does the brown wire go on a PCM harness?

When you are removing wires from the harness, for instance pin 70 of blue connector, oil level switch. This brown wire will lead you to a connector that will have another wire on it. This other wire can be removed as well. In this instance, it will be a black wire, that will go to a ground splice.

How many connectors does a PCM 4.3L have?

The 1996-97 PCM (Powertrain Control Module = Fuel Injection Computer) on your 4.3L, 5.0L or 5.7L Engine has a total of 4 connectors. NOTE: For other PCM pin-out charts, take a look at the following: 1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E). 1994 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS with A/T).

What are the pin out charts for PCM?

1998-99 PCM Connector Pin Out Charts (GM 4.3L, 5.0L, 5.7L). Each connector can be identified as: C1 Blue (32 Pin Connector). C2 Red (32 Pin Connector). C3 Clear -or Grey- (32 Pin Connector). C4 Black (24 Pin Connector). Contents of this tutorial: C1 Blue. C2 Red. C3 Clear -or Grey-. C4 Black.

What is the Powertrain Control Module ( PCM ) connector?

Low Speed Cooling Fan Relay Control 43 ORN/BLK 877 Fuel Injector 7 Control 44 LT BLU/BLK 844 Fuel Injector 4 Control 45 GRA 474 5 Volt Reference (A/C Refrigerant Pressure Sensor) 46 GRA 474 5 Volt Reference (Fuel Tank Pressure Sensor) 47 Not Used 48 GRA 416 5 Volt Reference (MAP Sensor) 49-50 Not Used 51 DK BLU 496

What are the PCM connectors for GM 4.3L?

In this article, you’ll find the Pin Out descriptions of the 4 PCM Connectors for the 1998-1999 GM 4.3L, 5.0L or 5.7L Engines. NOTE: For other PCM pin-out charts, take a look at the following: 1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E).

What does c4 Black mean on a PCM connector?

C4 Black. The symbol: <-> means that the Connector Pin # will have one of two different wires DEPENDING on the actual year of your vehicle or whether your it’s equipped with a 4.3L, 5.0L, 5.7L, etc. Here are some very important safety precautions when testing the wires coming out of the PCM connectors.

Where can I find E38 ECM connector pinouts?

E38 ECM Connector Pinouts WWW.LT1SWAP.COM [ HOME ] [ PCM PROGRAMMING ] [ WIRE HARNESS INFO ] [ Active Fuel Management DELETE ] Visit my Facebookpage for a lot of New Pictures & Harness Guides YouTubechannel for How To videos – E-Mail: [email protected] Below are the ECM Connectors for 2008 vortec 5.3L harness.

How to see the color of a connector?

For viewing connector pin outs, with two ter minals or greater, refer to section 8W -80. This section identifies the connector by number and provides terminal numbe ring, circuit identification, wire colors and functions. All connectors are viewed from the terminal end unless otherwise specified.

What are the colors of a 32 pin PCM connector?

C1 (Blue) PCM 32 Pin Connector Pin Wire Color Description 1 — Empty 2 — Empty 3 Brown w/ White stripe 1X CMP Signal 4 Pink Ignition Feed

BLOCKS HIGHLIGHTED LIKE THIS, ARE WIRES THAT CAN BE REMOVED FROM PCM CONNECTORS, NOT NEEDED. Note: Removing all of these will result in a non-emissions friendly harness. If requirements are for 4 oxygen sensors, EVAP system, then you will not want to remove those components.

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