Suzuki Wagon R Manual page 3615

1A-4 HEATER AND VENTILATION
Diagnosis Table
Condition
Heater blower doesn't
work even when its
switch is ON.
Incorrect temperature
output
When mode control
lever is changed, air
outlet port is not
changed or lever posi-
tion disagree with air
outlet port.
Insufficient velocity of
air
Diagnosis
Possible Cause
• Blower fuse blown
• Blower resistor faulty
• Blower switch faulty
• Blower motor faulty
• Wiring or grounding faulty
• Control cables broken or binding
• Temperature control lever faulty
• Control cable clamp position faulty
• Air damper broken
• Air ducts clogged
• Heater radiator leaking or clogged
• Heater hoses leaking or clogged
• Thermostat faulty
• Supplementary heater fuse blown
• Supplementary heater faulty
• Supplementary heater controller faulty
• Supplementary heater relay faulty
• Water temperature sensor faulty
• Max hot switch faulty
• Control cables broken or binding
• Air damper broken
• Air ducts clogged
• Air damper broken
• Air ducts leaking or clogged
• Air filter element clogged
Diagnostic Trouble Code (DTC) Check (Z13DT
Engine Model)
Refer to same section of the Service Manual mentioned in the
"FOREWORD" of this service manual.
Diagnostic Trouble Code (DTC) Table (Z13DT
Engine Model)
Refer to same section of the Service Manual mentioned in the
"FOREWORD" of this service manual.
Correction
Check for short to ground and
replace fuse.
Check resistor.
Check blower switch.
Replace motor.
Repair as necessary.
Check cables.
Check control lever.
Check and adjustment.
Repair damper.
Repair air ducts.
Replace radiator.
Replace hoses.
Check thermostat.
Check supplementary heater fuses.
Check supplementary heater (if
equipped).
Check supplementary heater con-
troller (if equipped).
Check supplementary heater relay
(if equipped).
Check water temperature sensor (if
equipped).
Check max hot switch (if equipped).
Check cable.
Check control lever.
Check and adjustment.
Repair damper.
Repair air ducts.
Check air filter element (if
equipped).