LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Oldsmobile >> 1998 >> Regency >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Cruise Control System) >> Testing >> Rev Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Rev Test

WARNING: This page is about a different car, the 1997 Oldsmobile Aurora and 1997 Buick Riviera. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using scan tool, command PCM to enable cruise control system. Set parking brake and start engine. Move main switch to OFF position, then to ON position. After 3 seconds, depress and hold SET button. Hold slider switch in Resume/Accelerate (R/A) position. Fully depress and hold brake pedal.
  2. After 10 seconds, release brake pedal. Engine RPM should increase slightly, then return to idle. Clear any Diagnostic Trouble Codes (DTCs) which may be set.