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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Engine Controls - Tests W/Codes - Body Control Computer) >> Self-Diagnostic Tests >> Test 18A - Testing CMTC Switches

Test 18A - Testing CMTC Switches

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Perform TEST VER-1B after each repair.

Turn ignition on, engine off. While observing Compass/Mini-Trip Computer (CMTC) display, press each button on CMTC. If CMTC display changes each time a button other than US/METRIC button is pushed, CMTC is okay at this time. If CMTC display does not change when buttons are pushed, replace CMTC module.