1A
DTC P0115: Engine Coolant Temperature Circuit Malfunction
NOTE:
• If DTC P0115 is detected, radiator cooling fan motor is operated.
• The preheating time is 10 seconds or longer.
Detecting Condition
Status displayed on SUZUKI scan tool Detecting condition Indicator / Warning light operation
CC0 Short circuit to ground Injection warning light (gravity 1 fault) light up.
CO1 Open circuit or short circuit to 12 V
Troubleshooting
Check the connection and condition of the coolant temperature sensor connector.
Repair it if necessary.
Check the connection and condition of the ECM “C47” connector.
Repair if necessary.
Check ECT sensor for resistance referring to Engine Coolant Temperature (ECT) Sensor Inspection:K9K .
Check the insulation, continuity and absence of interference resistance of the connections:
• Between “BLU/WHT” wire of engine coolant temperature sensor connector and “C47-31” terminal of ECM connector
• Between “BLU/RED” wire of engine coolant temperature sensor connector and “C47-21” terminal of ECM connector
Repair if necessary.
If DTC P0115 is still detected, replace the ECM.
After Repair
Deal with any faults detected by SUZUKI scan tool.
Clear the DTC.
Carry out a road test followed by another check with the SUZUKI scan tool.