Trouble
Heater blower won't work
even when its switch is ON.
Incorrect temperature output
When mode control switch is
changed, air outlet port is not
changed.
DIAGNOSIS
Possible cause
D Fuse blown
D Blower resistor faulty
D Blower motor faulty
D Wiring or grounding faulty
D Control cables broken or binding
D Temperature control lever faulty
D Position of control cable clamp is
faulty
D Air damper broken
D Air ducts clogged
D Heater radiator leaking or clogged
D Heater hoses leaking or clogged
D Mode control switch faulty
D Mode actuator faulty
D Fuse blown
D Wiring or grounding faulty
D Air damper broken
D Air ducts clogged
HEATER AND VENTILATION 1A-7
Remedy
D Replace fuse to check for short.
D Check continuity.
D Replace motor.
D Repair as necessary.
D Check cables.
D Check control lever.
D Check and adjust clamp position.
D Repair damper.
D Repair air ducts.
D Replace radiator.
D Replace hoses.
D Check and replace if necessary.
D Check and replace if necessary.
D Replace fuse to check for short.
D Repair if necessary.
D Repair damper.
D Repair air ducts.