PREVOST X3-45 Multiplex User Manual

3 Diagnostics, Troubleshooting and Testing
31
Meritor WABCO Maintenance Manual MM-0112 (Revised 07-05)
Figure 3.26
ATC Valve
Measure resistance across the two electrical terminals on the ATC
valve to ensure 7.0 to 14.0 ohms. Figure 3.27.
앫 If the resistance is greater than 14.0 ohms, clean the electrical
contacts on the solenoid. Check the resistance again.
앫 To check the cable and ATC valve as one unit, measure
resistance across the pins on the ECU connector of the harness.
Check the diagram of the system you are testing for pin
numbers. (Refer to Appendix II.)
Figure 3.27
Refer to Meritor WABCO ABS Valve Package in Appendix III for ABS
Valve Package Troubleshooting information.
RSC Valve
Measure resistance across the two electrical terminals on the RSC
valve to ensure 7.0 to 14.0 ohms. Figure 3.28.
앫 If the resistance is greater than 14.0 ohms, clean the electrical
contacts on the solenoid. Check the resistance again.
앫 To check the cable and RSC valve as one unit, measure
resistance across the pins on the ECU connector of the harness.
Check the diagram of the system you are testing for pin
numbers. (Refer to Appendix II.)
Figure 3.28
Figure 3.26
Figure 3.27
OPEN-STYLE CONNECTOR
GROUND
TERMINAL
EXHAUST SOLENOID
(BLUE WIRE)
INLET SOLENOID
(BROWN WIRE)
4004021a
1002039a
AIR
LINES
PORT 1,
AIR SUPPLY
AIR LINE
PORT 3,
TREADLE
VALVE CONTROL
DO NOT OPEN
PORT 2,
AIR DISCHARGE
Figure 3.28
1002039a
AIR
LINES
PORT 1,
AIR SUPPLY
AIR LINE
PORT 3,
TREADLE
VALVE CONTROL
DO NOT OPEN
PORT 2,
AIR DISCHARGE

PREVOST X3-45 Multiplex Specifications

General

Length	45 ft
Width	102 in
Engine	Volvo D13
Horsepower	500 hp
GVWR	54, 000 lbs
Height	146 in
Sleeping Capacity	Varies based on floor plan
Water Capacity	Varies based on floor plan