Visual Indicators
As explained in earlier sections of this document, if either the raised mode (rear only) or lowered mode
(partial) is selected, the respective pushbutton LED will flash. Additionally, if the raised mode (entire
vehicle), lowered mode (lowest possible mechanical position), or the tag dump mode is selected the
respective LED will be “ON” continuously. The user interface also contains a suspension and an air
pressure indicator. Should the system ECU detect a problem, the suspension light will blink in such a
manner as to identify an error code associated with the fault. Additionally, should the system air pressure
fall below 90psi, the system ECU will illuminate the air suspension indicator.
Note: The following section provides more information regarding the specific system error codes.
Error Codes
The ECU has the ability to monitor the SAMS system and detect electrical problems. Should the ECU
detect a problem, a visual indication will be given by flashing the suspension indicator located on the user
interface panel in such a manner as to represent a two or three-digit code. The first number of the code
can be identified by counting the first series of flashes. It will be followed by a short pause, and then
provide a second series of flashes to represent the second number of a two-digit code (if applicable, the
second number will be followed by another short pause, and then provide a third series of flashes to
represent a three-digit code). For example one flash, followed by a short pause, and then three additional
flashes would illustrate a code 13.
In the event of more than one detected problem, the ECU will cycle through this process and flash an
individual error code for each identified problem. The ECU will continue to flash the error code(s) until
the problem(s) have been corrected. Once the problem(s) are corrected, the ECU will proceed to turn off
the suspension indicator. A list of potential error codes and their probable cause are as follows:
• 11 (eleven) – Rear Drive, Driver Height Sensor
• 12 (twelve) – Rear Drive, Curb Height Sensor
• 13 (thirteen) – Rear Drive, Driver Pressure Transducer
• 14 (fourteen) – ECU Sensor Reference Voltage
• 21 (twenty-one) – Rear Drive, Curb Pressure Transducer
• 22 (twenty-two) – Rear Tag, Driver Pressure Transducer
• 23 (twenty-three) – Rear Tag, Curb Pressure Transducer
• 24 (twenty-four) – X Axis Inclination Sensor
• 31 (thirty-one) – Y Axis Inclination Sensor
• 32 (thirty-two) – Front, Driver Height Sensor
• 33 (thirty-three) – Front, Curb Height Sensor
• 34 (thirty-four) – Supply Pressure Transducer
• 41 (forty-one) – Invalid Battery Voltage
• 42 (forty-two) – Not Used
• 43 (forty-three) – Low Battery Voltage (less than 9.7VDC)
• 44 (forty-four) – High Battery Voltage (greater than 14.8VDC)
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