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Raised Mode 

This mode of operation is used to 

increase

 the clearance between the underside of the vehicle frame and 

the ground surface.  The vehicle operator must select this mode of operation and choose to raise either the  
rear only of the vehicle or to raise the entire vehicle.  A separate action must be performed by the vehicle 
operator in order to initiate either function of the 

raised mode

 of operation.  This action is further 

discussed in the following two paragraphs. 
 
Raising the 

rear only

 of the vehicle can be chosen by the vehicle operator to increase the clearance 

between the rear bumper of the vehicle and the ground.  It may be necessary for the operator of the 
vehicle to select this mode when situations arise where the rear of the vehicle may drag due to the length 
of the vehicle and the departure angle.  This mode may be selected by momentarily depressing the “raise” 
pushbutton located on the user interface, with the vehicle speed at 20MPH or less.  Once the mode is 
selected, the system ECU will temporarily raise the rear of the vehicle and the LED located above the 
pushbutton on the user interface will blink as a visual indication the mode has been activated. 
 
The ECU will automatically return the rear of the vehicle to the normal ride height when the speed 
exceeds 20MPH, the mode has been active for more than 40seconds, or the operator momentarily 
depresses the “lower” pushbutton located on the user interface.  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 obstacle.  This mode may be selected by depressing and holding the “raise” pushbutton for 
approximately 3 seconds, with the vehicle speed at 10MPH or less.  The pushbutton must be held until the 
LED located above the pushbutton remains on continuously.  At that point, the pushbutton can be released 
and the mode will remain active.  Once the mode becomes active, the system ECU will raise the entire 
vehicle and the LED located above the pushbutton will remain on as a visual indication the mode is 
active. 
 
The ECU will automatically return the entire vehicle to the normal ride height when the speed exceeds 
10MPH or the operator momentarily depresses the “lower” pushbutton located on the user interface.  
Once the mode has been deactivated, the ECU will automatically turn off the LED. 
 

Lowered Mode  

This mode of operation is used to 

decrease

 the clearance between the underside of the vehicle frame and 

the ground surface.  The vehicle operator must select this mode of operation and choose to 

partially

 lower 

or 

entirely

 lower the whole vehicle.  A separate action must be performed by the vehicle operator in order 

to initiate either function of the 

lowered mode

 of operation.  This action is further discussed in the 

following two paragraphs. 
 

 

Содержание SAMS

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

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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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