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Home >> Buick >> 1989 >> Regal Custom, 3.1 T >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Testing >> Chart No. 2: Cruise Control Module (Test O)

Chart No. 2: Cruise Control Module (Test O)

Clean and tighten all cruise control grounds. If a ground circuit is suspect, install a ground strap between engine block and firewall. If all grounds are okay, replace cruise control module. If system now operates okay, leave new module installed.