Dtc P0480 Radiator Fan Control System Malfunction - Suzuki Swift User Manual

6-80 ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10)
Fig. 1 for Step 1

DTC P0480 RADIATOR FAN CONTROL SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION
Ignition switch
Main
fuse
DTC DETECTING CONDITION
D Low voltage at terminal C02-20 when engine coolant
temp. is below 91_C, 195_F.
: 2 driving cycle detection logic, continuous monitoring.
DTC CONFIRMATION PROCEDURE
1) Turn ignition switch OFF.
2) Clear DTC with ignition switch ON.
3) Warm up engine until radiator cooling fan starts to operate.
4) Check pending DTC in "ON BOARD TEST" or "PENDING DTC" mode and DTC in "DTC" mode.
"IG COIL METER"
Radiator fan
relay
Radiator fan motor
POSSIBLE CAUSE
D "B/W" or "BI" circuit open or short
D Radiator fan relay malfunction
D ECM (PCM) malfunction