Suzuki 2006 SX4, Service Manual

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1F-3 Engine Cooling System:
Diagnostic Information and Procedures
Engine Cooling Symptom Diagnosis
S6RW0C1604001
Condition Possible cause Correction / Reference Item
Engine overheats
(Radiator fan operates) Loose or broken water pump belt Adjust or replace.
Not enough coolant Check coolant level and add as necessary.
Faulty thermostat Replace.
Faulty water pump Replace.
Dirty or bent radiator fins Clean or remedy.
Coolant leakage on cooling system Repair.
Clogged radiator Check and replace radiator as necessary.
Faulty radiator cap Replace.
Dragging brakes Adjust brake.
Slipping clutch Replace.
Poor charge battery Check and replace as necessary.
Poor generation generator Check and repair.
ECT sensor faulty Check and replace as necessary.
Radiator fan motor faulty Check and replace as necessary.
ECM faulty Check and replace as necessary.
Wiring or grounding faulty Repair as necessary.
Equipped with too much electric load
part(s) Dismount.
Engine overheats
(Radiator fan does not
operate) Fuse blown Check 30 A fuse of relay/fuse box and check
for short circuit to ground.
Radiator cooling fan relay faulty Check and replace as necessary.
ECT sensor faulty Check and replace as necessary.
Radiator cooling fan motor faulty Check and replace as necessary.
Wiring or grounding faulty Repair as necessary.
ECM faulty Check and replace as necessary.