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Smart Air Management System 

And 

Self-Leveling System 

 

 

 

Owner & Service Manual 

 

 

3/04/2005 

 
 

Table of Contents 

Summary of Contents for SAMS

Page 1: ...Smart Air Management System And Self Leveling System Owner Service Manual 3 04 2005 Table of Contents ...

Page 2: ...rmal Mode 4 Raised Mode 5 Lowered Mode 5 Tag Dump Mode 6 Self Leveling Mode 8 Visual Indicators 10 Error Codes 10 SAMS Manifold Valves 12 Theory of Operation 12 Valve Servicing 14 Manifold Error Code Identification 16 Electrical Testing 17 ...

Page 3: ...e angle sensors will be mounted on the vehicle frame in a 4 point configuration rear 2 front 2 The wire harnessing will provide the necessary connections for providing DC electrical control power and ground to the SAMS system from a suitable vehicle power source provide the necessary height sensor connectors provide the pneumatic manifold wiring interface provide the necessary color coded wires fo...

Page 4: ...rface Once the mode has been deactivated the ECU will automatically turn off the LED Raising the entire vehicle can be chosen by the vehicle operator to increase the clearance between the entire vehicle and the ground It may be necessary for the operator of the vehicle to select this mode when situations arise where the body of the vehicle must be raised to avoid or to overcome an undercarriage ob...

Page 5: ... indication the mode is active The ECU will automatically return the entire vehicle to the normal ride height when the speed exceeds 5MPH or the operator momentarily depresses the raise pushbutton located on the user interface Once the mode has been deactivated the ECU will automatically turn off the LED Tag Dump Mode This mode of operation is used to control the air pressure in the tag axle of th...

Page 6: ...e LOWER Button Press once to partially lower the vehicle to decrease overall height Speed 10 MPH The Lower light flashes or Press and hold button until the lower light remains on to lower the vehicle to lowest overall height Speed 5 MPH Press RAISE switch once to return to normal height Lower light off RAISE Button Press once to raise the rear of the RV for increased bumper clearance The Raise lig...

Page 7: ...CU will provide a visual indication of this process to the vehicle operator by turning on the indicator arrows located to the left of the SLS pushbutton The two arrows reference the X and Y axis of the vehicle The top arrow points left to right represents the Y vehicle axis long axis front to back and the bottom arrow points top to bottom represents the X vehicle axis short axis side to side The a...

Page 8: ... RV is near level Flashing Green Adjustment is possible and within range Flashing Amber Marginal conditions possible self level Solid Amber Excessive slope Self leveling may not be possible Press once to activate the Self Leveling process Press once again to switch the self leveling off Note Parking brake must be applied for self leveling adjustments to occur Level Indicator Light X or Short Axis ...

Page 9: ...econd 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 thr...

Page 10: ...Suspension Dump LED 213 two hundred thirteen Valve Manifold Connector 1 Male Disconnected 214 two hundred fourteen Valve Manifold Connector 2 Female Disconnected 333 three hundred thirty three CANbus Data Not Read Note Each time the engine is started the suspension indicator will be illuminated for approximately 5 seconds During this time interval the ECU will gather information from the system se...

Page 11: ...cation requires two valves per air bag for ride height control totaling twelve 12 valves in all One valve serves as a fill valve and allows system air to pass through the manifold into the air bag This causes the air bag to inflate thereby increasing the vehicle ride height The second valve serves as an exhaust valve and allows air to pass from the air bag through the manifold into the atmosphere ...

Page 12: ...n thereby affecting system operation and performance Should an inflation valve plunger become contaminated or the plunger stick open it is possible for air to leak past the plunger and continuously fill the associated air bag This would cause a corner of the vehicle to continuously creep upwards while the vehicle is in operation and result in the SAMS system constantly making corrections to lower ...

Page 13: ...alve assembly so as not to lose the mounting hardware or the O ring that is installed in the respective manifold surface machined groove The O ring and mounting hardware create a positive seal between the valve assembly mounting plate and the valve mounting surface of the manifold Note If the O ring is lost or damaged or the valve is not properly attached to the manifold by using all of the previo...

Page 14: ...ription 2 Open Short ANA 0 Angle Sensor Drive DVR Angle Sensor 11 1 Angle Sensor Drive Curb Angle Sensor 12 2 Pressure Sensor Drive DVR Pressure Transducer 13 3 V ref Internal Circuit Board Reference 14 4 Pressure Sensor Drive Curb Pressure Transducer 21 5 Pressure Sensor Tag DVR Pressure Transducer 22 6 Pressure Sensor Tag Curb Pressure Transducer 23 7 Inclination Sensor X Axis Inclination Transd...

Page 15: ...ated error code listed in the previous chart Error Code 113 Error Code 111 Error Code 22 Error Code 13 Error Code 23 Error Code 31 Error Code 24 Error Code 21 Error Code 121 Error Code 123 Error Code 131 Error Code 132 Error Code 133 Error Code 134 Error Code 124 Error Code 122 Error Code 114 Error Code 112 ...

Page 16: ...t as indicated by displaying 1OL the coil requires replacement as well Note Prior to disconnecting the manifold wiring harness to perform the continuity check be sure power has been removed from the SAMS system ECU This can be accomplished by disconnecting the white wiring harness connector in the vicinity of the manifold assembly This prevents the SAMS system from operating when the engine is not...

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