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COMBINATION METER ASSEMBLY CHASSIS ELECTRICAL 54A-114 TROUBLESHOOTING HINTS • Refer to circuit diagrams GROUP- • Refer to configuration diagrams GROUP- • The wiring harness or connectors may have loose, corroded, or damaged terminals, or termi- • Injector failure. • Open or shorted injector circuit, harness dam- age, or connector damage. • Engine-ECU failed. • Combination meter power and ground circuits may be defective. • Trip computer/Combination meter malfunction. DIAGNOSIS Required Special Tools: • Diagnostic Tool (MUT-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A • MB991658: Test Harness STEP 1. Check combination meter connector C-101 for condition? 00E, Harness Connector Inspection . The combination meter works normally. 54DB019A CONNECTOR: C-101 HARNESS SIDE |