Restore Full Electrical Function to Your GM Truck or Van
Are you battling strange and frustrating electrical problems in your 2002 Silverado 1500? Issues like flickering lights, malfunctioning power windows and locks, a faulty security system, or even a vehicle that won’t start can often be traced back to a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, and when it fails, it can cause a wide range of confusing symptoms. This replacement BCM is the definitive solution to get your truck back to 100% functionality.
From the Diagnostic Bay
We had a 2002 Sierra come in with a classic ‘parasitic draw’ issue. The owner had replaced the battery twice, but it would still be dead every few mornings. After checking all the usual suspects, we hooked up our diagnostic scanner and monitored the BCM’s activity with the key off. We found that the module wasn’t properly entering its ‘sleep’ mode, keeping other systems awake and slowly draining the battery overnight. A new, properly programmed BCM solved the problem instantly, saving the customer from further headaches and the cost of another battery.
Symptoms of a Failing GM Body Control Module
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system light staying on or preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Inaccurate gauge readings on the instrument cluster.
- ✔ Unexplained battery drain that leaves you with a dead battery.
A Simple, Reliable Solution: The 2002 Silverado 1500 BCM
Don’t let a faulty module keep your truck off the road. This unit is a direct-fit replacement for your original BCM. The best part? We handle the programming for you. Simply provide your vehicle’s VIN during checkout, and our technicians will flash the module with the latest GM software specific to your truck. This ensures seamless integration and restores all factory functions. Plus, with no core charge, you don’t have to worry about the hassle and expense of sending your old part back.
What to Expect After Installation
While this module is programmed for a straightforward installation, some vehicles may require minor post-installation procedures. These are typically simple and can be performed by a qualified technician with a professional diagnostic tool.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure correct brake light operation and traction control performance.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Guaranteed Fitment for Part Numbers:
This BCM is a direct replacement for the following part numbers: 15063578, 15081796, 15095334, 19208537, DKAK, DPNU
YUKON 02 Body Control (BCM); (under steering column), 4×2
BLAZER S10/JIMMY S15 02 Body Control (BCM); (center dash), ID 15063578
BLAZER S10/JIMMY S15 03-05 Body Control (BCM); (center dash)
SILVERADO 3500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 02 Body Control (BCM); (under steering column)
S10/S15/SONOMA 03-04 Body Control (BCM)
SAFARI (GMC) 02-03 Body Control (BCM); (center dash), ID 15095334
SAFARI (GMC) 04-05 Body Control (BCM); (center dash)
ESCALADE 02 Body Control (BCM); (under steering column), 4×2
SUBURBAN 2500 02 Body Control (BCM); (under steering column)
ASTRO 02-03 Body Control (BCM); (center dash), ID 15063578
SILVERADO 2500 PICKUP 02 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 02 Body Control (BCM); (under steering column)
YUKON XL 1500 02 Body Control (BCM); (under steering column), 4×2
AVALANCHE 1500 02 Body Control (BCM); (under steering column), 4×2
BLAZER S10/JIMMY S15 02 Body Control (BCM); (center dash), ID 15085334
SUBURBAN 1500 02 Body Control (BCM); (under steering column), 4×2
YUKON XL 2500 02 Body Control (BCM); (under steering column)
ASTRO 04-05 Body Control (BCM); (center dash)
SAFARI (GMC) 02-03 Body Control (BCM); (center dash), ID 15081796
S10/S15/SONOMA 02 Body Control (BCM); (center dash), ID 15063578
BLAZER S10/JIMMY S15 02 Body Control (BCM); (center dash), ID 15081796
S10/S15/SONOMA 02 Body Control (BCM); (center dash), ID 15095334
S10/S15/SONOMA 02 Body Control (BCM); (center dash), ID 15081796
SAFARI (GMC) 02-03 Body Control (BCM); (center dash), ID 15063578
SIERRA DENALI 02 Body Control (BCM); (under steering column)
SILVERADO 1500 PICKUP 02 Body Control (BCM); (under steering column)
TAHOE 02 Body Control (BCM); (under steering column), 4×2
ASTRO 02-03 Body Control (BCM); (center dash), ID 15095334
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and calibrations your vehicle had from the factory, including the latest updates from GM. This ensures compatibility and proper function of all your vehicle’s features.
Is this a plug-and-play part?
Because we program it to your VIN, it is as close to plug-and-play as possible. In most cases, you can simply install it. However, as noted, some vehicles may require a simple relearn procedure for the airbag or brake systems, which requires a professional scan tool.
Where is the BCM located on my 2002 Silverado?
On the 2002 Silverado 1500, the Body Control Module is typically located under the driver’s side of the dashboard, near the steering column. Always disconnect the battery before attempting removal or installation.
Will this fix my ‘Service 4WD’ light?
While a failing BCM can cause a variety of warning lights, issues with the 4WD system are more commonly related to the Transfer Case Control Module (TCCM) or the encoder motor. It’s important to have the trouble codes read to properly diagnose the issue before ordering parts.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.