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Home >> GMC >> 1996 >> Forward Control 4.3 W >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Engine Controls - System/Component Tests - 3.3L (CNG)) >> Computerized Engine Controls >> Powertrain Control Module (Pcm) >> Diagnostic Check
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnostic Check

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.

PCM is tested using DRB. See appropriate testing in TESTS W/CODES - 3.3L CNG article in the ENGINE PERFORMANCE section.