21997788 - You must match this exactly!

BCM will fit the following vehicles with the same part number. Programming may be necessary. Please consult your local mechanic.
• 2004 to 2006 Chevy Colorado and GMC Canyon models with matching part number
• May fit other GM models with a matching part number. Please be sure to verify fitment with your dealer before purchasing.

Module has been tested and inspected by our experienced electronics techs! Some of those tests/repairs are listed below:
• Unit opened up and board drivers, relays were tested. The following outputs tested and are good: Comm / Headlamp relay / Horn relay / Park lamp relay / Retained Accessory relay / Blower relay / Beam select relay / Front and rear turn signals / Daytime running lamps / Wiper relay / Shift interlock plus more!
• No corrosion was found. Traces all tested good.
• Please clean your connectors prior to install.

This module carries a 3 month warranty from the date of purchase. Please keep a copy of your sales record which we will send with your order.