Programmed 1999-2000 Escalade PCM 8162634940 | VIN Matched

Restore Peak Performance to Your GM Truck or SUV

Is your truck or van plagued by frustrating issues like stalling, a no-start condition, or an illuminated Check Engine Light that just won’t go away? As a technician with over two decades of experience, I’ve seen how a failing Powertrain Control Module (PCM) can create a diagnostic nightmare. It’s the brain of your vehicle, and when it falters, everything from fuel economy to transmission shifting can be affected. This isn’t just an inconvenience; it’s a reliability issue that can leave you stranded.

This is your direct-fit, dependable solution. We are offering a replacement 1999-2000 Escalade PCM that is meticulously programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures that the module communicates flawlessly with your engine, transmission, and all other onboard systems. We load it with the latest official GM software updates, which often correct factory drivability issues and improve overall performance and efficiency. Forget the expensive trip to the dealership for programming—this module is ready for installation right out of the box.

Is Your GM Truck or SUV Showing These Signs?

A failing PCM can manifest in numerous ways. If you’re experiencing any of the following, a faulty module could be the root cause:

• ✔ Unexplained Check Engine Light (CEL)
• ✔ Engine stalling or cutting out while driving
• ✔ Complete no-start condition (engine cranks but won’t fire)
• ✔ Harsh or erratic automatic transmission shifting
• ✔ Noticeable decrease in fuel economy
• ✔ Failed emissions test
• ✔ Diagnostic Trouble Codes (DTCs) related to internal module failure, such as P0601, P0602, or P0606.

A Straightforward Guide to Installation

Installing your new 1999-2000 Escalade PCM is a manageable job for a confident DIYer. Following these steps will help ensure a smooth process. Always consult a vehicle-specific repair manual if you are unsure.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
2. Locate the Module: On most of these GM trucks and vans, the PCM is located in the engine compartment. Common locations are on the driver’s side inner fender, under the battery tray, or on the driver’s side of the engine block.
3. Disconnect the Wiring: Carefully unplug the electrical connectors. These often have locking tabs that need to be released. Never force them; inspect them for the release mechanism. Note the color-coding or position of each connector.
4. Remove the Old Module: Unbolt the old PCM from its mounting bracket. Keep the hardware, as you may need it for the new module.
5. Install the New Module: Mount your new, pre-programmed PCM securely onto the bracket and reinstall any hardware.
6. Reconnect Everything: Plug the wiring harnesses back into the correct ports on the new module until they click securely in place. Reconnect the negative battery terminal.
7. Final Steps: In some cases, a security relearn or a Crankshaft Variation (CASE) relearn procedure may be required. This can often be initiated with a specific key-on/key-off sequence or may require a capable scan tool. Your vehicle is now ready to start.

Verified Vehicle Compatibility List

This module is a direct replacement for service number 8162634940 and is also compatible with part numbers 16263494, 16265035, 218-11787, and 21811787. It fits a wide range of GM vehicles. Please verify your part number and application from the list below.