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Home >> GMC >> 1997 >> Forward Control 7.4 J >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Cruise Control System - Diesel (P Series)) >> Testing >> Notes
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Section 10 (Cruise Control System - Diesel (P Series)): Testing: Notes

WARNING: This page is about a different variant/trim than selected.
WARNING: Deactivate air bag system before performing any service operation. See AIR BAG RESTRAINT SYSTEM article. Do not apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.
NOTE: Manufacturer recommends use of Tech 1 Scan Tool for retrieving Diagnostic Trouble Codes (DTCs). Flash code diagnostics using Malfunction Indicator Light (MIL) are also available.