Programmed 1998 Blazer S10 BCM 16264870 | Plug & Play

If you’re dealing with the frustrating and unpredictable electrical problems common in a 1998 Chevy Blazer S10 or GMC Jimmy, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable truck into a source of constant headaches. From interior lights that won’t turn off to a security system that randomly immobilizes your vehicle, the symptoms can be maddening. This isn’t just a part; it’s the solution to restoring order to your truck’s electronic systems.

We take the guesswork and hassle out of the repair. This BCM is not just a replacement part; it’s a fully prepared, plug-and-play solution. Before we ship it, we flash the module with the latest official GM software and program it specifically to your vehicle’s VIN. This critical step ensures seamless communication between the BCM and your truck’s other computers, a process that would otherwise require an expensive trip to the dealership. You get a reliable part that’s ready for installation right out of the box.

Is Your Blazer Acting Possessed? Common BCM Failure Signs

A failing 1998 Blazer S10 BCM can cause a wide range of issues. If you’re experiencing any of the following, a faulty BCM is the likely culprit:

• ✔ Erratic or non-functional interior/exterior lights (dome lights, headlights).
• ✔ Power windows, mirrors, or door locks working intermittently or not at all.
• ✔ The security or anti-theft system light flashing, preventing the truck from starting.
• ✔ Gauges on the instrument cluster behaving erratically or not working.
• ✔ The radio or other accessories not turning off after the key is removed, leading to a dead battery.
• ✔ False warning lights appearing on the dash, such as the airbag light.

Simple Steps to Restore Your Truck’s Electronics

Installing your new BCM is straightforward. While the exact location can vary slightly, it’s typically found in the center dash area. Always consult a service manual for your specific vehicle, but here is a general guide:

1. Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
2. Access the Module: Carefully remove the necessary dash panels to gain access to the BCM. On most S10/Blazer models, this involves removing the lower dash cover below the steering column.
3. Unplug and Remove: Disconnect the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the old module from its mounting bracket.
4. Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses.
5. Reassemble and Test: Reinstall the dash panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, locks, windows, radio, etc.

Important Post-Installation Note: In some cases, additional steps may be required. If your airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A brake pedal position relearn might also be necessary. These are standard GM procedures for ensuring all systems are properly synced.

Will This BCM Fit My Vehicle?

This module is a direct-fit replacement for several original part numbers and is guaranteed to be compatible with the following vehicles and options. Please verify your part number or vehicle before ordering.

• 1998 Blazer S10 / Jimmy S15: Body Control (BCM); (center dash), ID 16264870
• 1998 Blazer S10 / Jimmy S15: Body Control (BCM); (center dash), ID 9366803
• 1998 Blazer S10 / Jimmy S15: Body Control (BCM); (center dash), ID 16268395
• 1998 S10 / S15 / Sonoma: Body Control (BCM); (center dash), ID 16268395
• 1998 Bravada: Body Control (BCM); (center dash), w/o extended build date
• 1998 Isuzu Hombre: Body Control (BCM); (LH dash)

This unit replaces part numbers: 09366803, 16264870, 16268395, 8093668030, 8162683950.