The MCI® E4500 coach is equipped with an electronic suspension system. Instead of using leveling valves to maintain the coach ride height, this system uses 3 sensors that relay information to an electronic control unit. From the information received the ECU adds or removes air to/from the air bellows.
Since this system is computer controlled, it continually monitors the suspension system and all of the electrical components associated with that system. If something doesn't check out properly, the ECU will log or record a code. These codes are extremely useful for troubleshooting. Below is the procedure for accessing these codes.
On coaches prior to unit 62032:
For coaches after unit 62032, the procedure is the same except there is no STOP switch on the dash. Instead you press and hold the KNEEL switch and the LO-RIDE switches at the same time.
These diagnostics are the preliminary step to possibly making repairs. Since this is a very active suspension, please review the safety warnings shown in the E4500 Coach Maintenance Manual, section 12.
Safe Working Habits Are GOOD for the Health.
If you have any questions, please call the MCI Customer Support Center at (800) 241-2947, or to place an order, contact MCI Service Parts at (800) 323-1238.
Motor Coach Industries - A New Flyer company: Corporate Address 200 East Oakton Street, Des Plaines, Illinois 60018 | Phone: 866-MCICOACH
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