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Home >> Saturn >> 2002 >> SC2 Automatic, MP6 >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Instrument Panel, Gages, And Console -- "S" Series >> Description and Operation >> Indicator/Warning Message Description and Operation >> Service (Wrench) Telltale

Service (Wrench) Telltale

The SERVICE (Wrench) telltale is turned ON by the cluster when it receives a command from the PCM, BCM, or the EBTCM. The PCM or BCM will turn the SERVICE (Wrench) telltale ON for all non-emission related diagnostic trouble codes (DTCs) that require that a telltale be turned ON. Some DTCs do not turn ONa telltale but are stored to aid in diagnosis.

The SERVICE (Wrench) telltale will also be turned ON if the EBTCM has detected a fault in its own warning indicator system. If the ABS system cannot turn ON its own telltale, a message will be sent to the cluster to turn on the SERVICE (Wrench) telltale.

The SERVICE (Wrench) telltale will be turned ON for 2-3 seconds when the ignition is turned to RUN for a bulb test.

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