Fuel Injector Control Module
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The Fuel Injection Control Module (FICM) self monitors injector driver performance and sends this information to the Engine Control Module (ECM) through the CAN system. FICM is located on top front of right valve cover. See Fig 1 . If a fault is detected in the injector driver circuits, the FICM will signal the ECM and a DTC will set. This is an internal circuit fault and cannot be caused by external failures.