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Home >> GMC >> 1997 >> Suburban K2500, 7.4 J >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Cruise Control System - Diesel) >> Description & Operation >> Powertrain Control Module

Powertrain Control Module

WARNING: This page is about a different car, the 1997 GMC C3500 HD, 1997 Chevrolet Suburban, 1997 Chevrolet Pickup, 1997 Chevrolet Cab & Chassis, and 1997 Chevrolet C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Powertrain Control Module (PCM) is mounted behind right side of instrument panel. Fuel control portion of PCM maintains desired speed in response to cruise control switch commands. PCM performs system diagnostics and stores diagnostic trouble codes.

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