Where do I find the VIN number on my Chevy PCM?

Enter the VIN number in the VIN text box in the “Determine Vehicle” window, and click on “Apply” next to the text box. This will fill in your vehicle’s data in the boxes below. Click the “Next” button to proceed. Go through the checklist in the “Preparing for Communication” window, and click next to confirm your VIN number.

How many connectors does a GM 4.3L PCM 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:

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 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?

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:

What does the PCM do in a car?

The powertrain control module (PCM) in your vehicle is the main computer controlling its various operating systems. For example, the PCM controls the engine, the transmission, the fuel system, and the speedometer.

When do I need to reprogram my Chevy PCM?

If the vehicle isn’t performing the way it should, the PCM can be reprogrammed to increase performance. Recalls are another reason your PCM may need to be reprogrammed. Since Chevrolet is a subsidiary of General Motors (GM), GM tools and software are used to reprogram a Chevrolet PCM.

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

What does the VIN number on a Chevy Blazer mean?

Chevrolet BLAZER VIN decoder Every Chevrolet car has a unique identifier code called a VIN. This number contains vital information about the car, such as its manufacturer, year of production, the plant it was produced in, type of engine, model and more.

How to troubleshoot the PCM in a Chevy truck?

If your PCM fails your Chevy truck can experience a wide range of problems. The only way to diagnose a faulty PCM is to use a special tool, called an on-board diagnostic scan tool, or “OBD” scan tool. These tools are available from most auto parts stores. Locate the OBD port in your Chevy truck.

How to find out what year my Chevy Blazer is?

Find all the latest facts, figures and Chevrolet BLAZER specs based on year, make and model. Chevrolet vehicle history report may contain the following information: title problems, prior damages, unsafe salvage rebuilds, odometer mileage, theft, past sales.