Checking Brake Sensor
- Ensure ride control switch is in AUTO position. After FIRM RIDE light turns off, depress brake pedal firmly until light comes back on. After light comes on, release brake pedal.
- If FIRM RIDE light comes on as described, proceed to TEST A7. If light does not come on as described, proceed to TEST D22. If light flashes code, record trouble code and proceed to TROUBLE CODES under TESTING & DIAGNOSIS.