Suzuki Wagon R Manual page 388

DTC P0115 ENGINE COOLANT TEMPERATURE (ECT) CIRCUIT
(DTC No.19) MALFUNCTION
CIRCUIT DESCRIPTION
DTC DETECTING CONDITION
D Low engine coolant temperature (High voltage-High resistance)
D High engine coolant temperature (Low voltage-Low resistance)
DTC CONFIRMATION PROCEDURE
1) Clear DTC, start engine and keep it at idle for 1 min.
2) Select "DTC" mode on scan tool and check DTC.
To combination To other sensors
(ECT) meter
E21-10
E21-14
NOTE:
D Before inspecting, be sure to check that
D When this DTC and P1709 are stored togeth-
POSSIBLE CAUSE
D "Y/G" circuit open or shorted to power
D "Br/W" circuit open
D ECT sensor malfunction
D ECM malfunction
coolant temp. meter in combination meter in-
dicates normal operating temperature (En-
gine is not overheating).
er, also clear DTC stored in TCM after
completion of repair.
ENGINE DIAGNOSIS 6-49