Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 |
Does the scan tool communicate with the cruise control module? | -- | ||
2 | Go to Scan Tool Does Not Communicate with Cruise Control Module for diagnosis. Is the repair procedure complete? | -- | System OK | -- |
3 | Is a current DTC 55 set? | -- | ||
4 | Go to DTC 55 Cruise Control Module Malfunction for diagnosis. Is the repair procedure complete? | -- | System OK | -- |
5 |
Normal Results: Vehicle maintains set speed. Does the cruise control engage and maintain set speed? | -- | ||
6 | Go to Cruise Control Inoperative for diagnosis. Is the repair procedure complete? | -- | System OK | -- |
7 |
Normal Results: Vehicle accelerates and maintains a new higher set speed. Does the vehicle accelerate and maintain the new higher set speed? | -- | ||
8 | Go to Does Not Resume, Accelerate, or Tap Up or Down for diagnosis. Is the repair procedure complete? | -- | System OK | -- |
9 |
Normal Results: Vehicle decelerates and maintains a new lower set speed, provided that speed is above 25 mph. Does the vehicle decelerate and maintain the new lower set speed? | -- | ||
10 | Press the brake pedal slightly. Normal Results: Cruise control disengages. (Memory is unchanged.) Does the cruise control disengage? | -- | ||
11 | Go to Cruise Control Does Not Disengage with Brake Pedal for diagnosis. Is the repair procedure complete? | -- | System OK | -- |
12 | Press the cruise control RESUME/DECEL button once and release. Normal Results: Vehicle accelerates to and maintains previous set speed. | -- | ||
13 | Press the SET/ACCEL button once (tap-up) and release (less than 3/4 of a second). Normal Results: Vehicle speed increases by 1 mph and maintains new set speed. Does the vehicle speed increase by 1-4 mph and maintain new speed? | -- | ||
14 | Press the RESUME/DECEL button once (tap-down) and release (less than 3/4 of a second). Normal Results: Vehicle speed decreases by 1 mph and maintains new set speed. Does the vehicle speed decrease by 1-4 mph and maintain new speed? | -- | ||
15 | Set the cruise switch to OFF. Normal Results: Cruise control disengages with memory unchanged. The cruise control set memory is erased when you turn off the ignition switch. Does the cruise control disengage? | -- | System OK | -- |
