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2012 Trip
Troubleshooting
No Cooling:
Check that the blower is operating
The mode switch is set to Max A/C or
A/C position. The temperature control
is set to the blue zone.
System fuses are not blown.
Condenser fan is operating.
Check power supply to the unit and
grounding of system.
Check wiring.
Drive belt is loose or broken.
Compressor clutch is inoperative, does
not engage.
Expansion valve is faulty or frozen.
Thermostat control is faulty.
Mode control switch is faulty.
Compressor is faulty.
Loss of refrigerant.
NOTE
An ultraviolet or UV blue light cube
is used for leak detection when dye is
introduced to the A/C System.
Reduced Cooling:
Coolant valve not operating correctly.
Air passages obstructed or restricted.
Loose or worn drive belt.
Check fan and mode switch.
Temperature control is faulty.
Expansion valve is faulty.
Compressor is faulty.
Low refrigerant charge.
No Heating:
Verify the proper engine coolant level.
Verify the engine is at operating
temperature.
Verify engine coolant is reaching water
valve attached to unit.
Verify operation of water valve to
permit engine coolant to pass through
valve to heater core.
Check unit fuses.
Check power supply to water valve and
grounding.
Check wiring.
Engine thermostat faulty.
Blower Does Not Operate or Runs Slow:
Check fuses.
Check for loose or corroded
connection.
Check wiring.
Check fan and mode switch.
Blower motor is seized.
Blower wheel is out of alignment.
DIagnoStIc Data port
ABS/ATC, engine and transmission systems
communicate electronically over SAE J1939.
J1587 is used to retrieve diagnostic codes from
a particular system. The data port located left
of the steering column below the dash has both
J1939/J1587.
Engine Diagnostics:
Engine diagnostics will notify the operator
of deviations from programmed limits of the
engine by illumination of the Check Engine
(Warning Triangle) and/or Stop Engine
(Hexagon) light(s) on dash. If either indicator
illuminates, a diagnostic code will be logged
and stored in system memory. These codes are
accessed by a service technician using special
equipment.
Located under dash left of steering column.
060308q
TELEFLEX
DIAGNOSTIC
J1587/1939
DIAGNOSTIC
ABS
Summary of Contents for Trip 2012
Page 1: ...2 0 1 2 B YHOL I D A YR A MB L E R O w n e r s Ma n u a l...
Page 13: ...Notes...
Page 45: ...40 Driv ing Safety 2 2012 Trip Weight Record Sheet...
Page 51: ...46 Driv ing Safety 2 2012 Trip Notes...
Page 138: ...133 W ater Sy stems 6 2012 Trip Water System Diagram 040487va...
Page 139: ...134 Wat er Sy stems 6 2012 Trip Notes...
Page 151: ...146 Pro p ane Sy tems 7 2012 Trip Notes...
Page 173: ...168 Ho us e Electr ical 8 2012 Trip Notes...
Page 190: ...185 Chassis Electrical 9 2012 Trip Engine No Start Flow Chart...
Page 191: ...186 Ch as s is Electr ical 9 2012 Trip Notes...
Page 237: ...232 Ch assis 10 2012 Trip Notes...