Operation CHARM: Car repair manuals for everyone.

Road Test


Perform the following road test and note system operation. If a cause for the observed malfunction cannot be determined by following troubleshooting procedures, proceed to SYSTEM DIAGNOSIS & TESTING.

Perform road test with cruise switch in On position and vehicle speed above 25 mph.
1. Momentarily depress set/coast switch in steering wheel pad and ensure vehicle maintains speed.
2. Hold set/coast switch in with foot off accelerator and ensure vehicle coasts down to a lower speed.
3. Release set/coast switch and ensure cruise control engages and holds slower speed if speed is greater than 25 mph.
4. Slide and hold resume/accelerate switch in and ensure vehicle accelerates.
5. Release resume/accelerate switch and ensure vehicle holds new, faster speed.
6. Tap brake pedal and ensure vehicle coasts.
7. Slide resume/accelerate switch and ensure vehicle accelerates to speed set before tapping of brake pedal.
8. Tap set/coast switch and ensure vehicle speed decreases 1 mph for each tap.
9. Tap resume/accelerate switch and ensure vehicle speed increases 1 mph for each tap.
10. Slide cruise switch in righthand switch assembly to Off position and ensure cruise control releases to manual operation.