Set speed will not resume when the RES/ACCEL button is pressed (with the cruise control master button turned on and set speed temporarily canceled by pressing the brake pedal)

Diagnostic procedure

1. Check the cruise control combination switch.
2. Do the cruise control unit input test on pins No. 1, No. 5 and No. 7.

Also check for

- Open circuit, loose or disconnected terminals: WHT/BLK, LT GRN