Ride Control Switch
Put ride control switch in "AUTO" position. After Green light turns off, place control switch in "FIRM" position. After light comes on, put control switch in "AUTO" position. If light is on in "FIRM" position and not in "AUTO" position, proceed to QUICK TEST A6. If light does not come on, proceed to QUICK TEST D23. If light flashes code, record trouble code and proceed to QUICK TEST A1.