Road Test
NOTE:
For trouble code testing information, refer to appropriate article in the COMPUTER ENG CONTROL for diagnosis.
- With instrument panel control switch in "OFF" position, drive vehicle at 50 MPH. Depress and release engagement push button at end of turn signal lever. System should remain inoperative.
- Place instrument panel switch in "ON" position. Amber indicator light should be on. Engage system by momentarily pushing turn signal engagement push button and releasing at 50 MPH. Remove foot from accelerator. Green light should be on and vehicle should maintain 50 MPH with foot off accelerator.
- Push slide switch and hold. Vehicle should accelerate at a controlled rate. Release switch at approximately 55 MPH. Speed should remain steady at 55 MPH. Depress brake pedal about 1/2". If Green light goes off, electric brake switch is okay and vehicle speed should decrease.
- Allow vehicle to decrease to approximately 45 MPH. Momentarily push slide switch and release. Vehicle should accelerate to 55 MPH at a controlled rate and Green light should be on.
- Push and hold engagement button. Green light should go off. Coast to 50 MPH and release button to engage system at 50 MPH. Green light should be on and vehicle should maintain speed.
- Check "tap-up" feature by actuating slide switch for less than a second. Vehicle should increase speed by approximately one MPH. Tap switch a couple more times to check incremental speed increases.