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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Transfer Case - NVG 236/246-NP8 (Two-Speed Automatic) Service) >> Description and Operation >> Transfer Case Description and Operation >> SERVICE 4WD Indicator

SERVICE 4WD Indicator

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The SERVICE 4WD indicator is an integral part of the cluster and cannot be serviced separately. This lamp is used to inform the driver of the vehicle of malfunctions within the automatic transfer case (ATC) system. The SERVICE 4WD indicator is controlled by the transfer case shift control module via a Class 2 message or by a Service Indicator Control circuit.

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