Suzuki Liana RH413, Service Manual

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1F-3 Engine Cooling System:
Diagnostic Information and Procedures
Engine Cooling Symptom Diagnosis
S3RH0A1604001
Condition Possible cause Correction / Reference Item
Engine overheats (It is in
case that 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 and/or A/C
condenser fins Clean or remedy.
Coolant leakage on cooling system Repair.
Clogged radiator and/or A/C condenser Check and replace radiator and/or A/C
condenser as necessary.
Faulty radiator cap Replace.
Improper ignition timing Adjust.
Dragging brakes Adjust brake.
Slipping clutch Adjust or replace.
Poor charge battery Check and replace as necessary.
Poor generation generator Check and repair.
ECT sensor faulty Check and replace as necessary.
Radiator cooling fan relay No.2 and/or
No.3 faulty Check and replace as necessary.
Radiator fan motor faulty Check and replace as necessary.
A/C condenser cooling fan relay faulty Check A/C condenser cooling fan relay (Refer
to “Generator Control Signal Circuit Check in
Section 1A”).
A/C condenser cooling fan motor faulty Check A/C condenser cooling fan motor (Refer
to “Generator Control Signal Circuit Check in
Section 1A”).
ECM faulty Check and replace as necessary.
Wiring or grounding faulty Repair as necessary.
Equipped with too much electric load
part Dismount.
Equipped with too much part to bumper
air inlet Dismount.
A/C system faulty Check A/C system (Refer to “Idle Air Control
System Check in Section 1A”).
Power steering system faulty Check power steering system (Refer to “Power
Steering (P/S) System Inspection in Section
0B”).
EGR system faulty Check EGR system (Refer to “EGR System
Inspection (Using SUZUKI Scan Tool) in
Section 1B”).
IAC system faulty Check IAC system (Refer to “Idle Air Control
System Check in Section 1A”).
Engine overheats (It is in
case that radiator fan
won’t operate) Fuse blown Check “30A” fuse in main fuse box and check
for short circuit to ground.
Radiator cooling fan relay No.1 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.