ENGINE DIAGNOSIS (RHZ ENGINE WITH SINGLE-CONNECTOR ECM) 6-57
DTC P1109 RADIATOR FAN LOW SPEED CIRCUIT MALFUNCTION
WIRING DIAGRAM
Refer to DTC P1108.
DTC CONFIRMATION PROCEDURE
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze flame data by using scan tool.
3) Start engine and warm up completely.
4) Check DTC and pending DTC by using scan tool.
TROUBLESHOOTING
STEP ACTION YES NO
1 Was “ENGINE DIAG. FLOW TABLE” performed? Go to Step 2. Go to “ENGINE DIAG.
FLOW TABLE”.
2 Check Wire Harness
1) Disconnect connector at ECM.
2) Check voltage between C51-83 and ground with
ignition switch ON.
Is it about 12 V?
Poor C51-83
connection.
Go to Step 3.
3 Check Radiator Fan Relay
1) Check radiator fan relay 3 referring to Section
6E3.
Is it in good condition?
D “YEL/BLU” wire
open or short to
ground,
D Fuse broken
Faulty radiator fan
relay 3.
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