Suzuki SY413 Service Manual page 1423

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.