Vehicle does not decelerate or accelerate accordingly when the set/decel switch or resume/accel switch is pressed

Diagnostic procedure

1. Check for PGM-FI and body DTCs.
2. Do the cruise control input test.
3. Test the cruise control set/decel and resume/accel switch signal inputs.
4. Do the cruise control combination switch test.

Also check for

- Open circuit, loose or disconnected terminals: GRY, LT GRN