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Home >> Volvo >> 2000 >> S40 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Combined Instrument (CI) & Driver Information Module (Dim) Diagnostic Trouble Codes (644 Body) >> CI-07 Engine Speed (Rpm) Signal. Faulty Signal (2000-2002) >> Faulty signal >> Information >> Overview

Faulty signal: Information: Overview

The combined instrument panel has previously registered a fault in the engine speed (RPM) signal from the engine control module (ECM), but registers that the fault no longer exists.

Fig 1: Identifying Tachometer
GLL112552Courtesy of VOLVO CARS OF NORTH AMERICA.