Coolant Temp. Sensor Circuit Malfunction - Suzuki 2000 Grand Vitara SQ625 Service Manual

DTC P0115 (DTC No.14,15) ENGINE COOLANT TEMP. SENSOR CIRCUIT MALFUNCTION
WIRING DIAGRAM
1. ECT sensor
2. To combination (ECT) meter
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Following conditions are detected for 5 sec.
continuously.
D Engine running
D High engine coolant temperature or Low
temperature
(Low voltage – Low resistance or High voltage –
High resistance)
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 frame data by using scan tool and run engine
at idle speed for 10 sec. or more.
3) Check DTC and pending DTC by using scan tool.
ENGINE DIAGNOSIS (G16 / J20 ENGINES) 6-49
TROUBLE AREA
D ECT sensor circuit short
D ECT sensor
D ECM (PCM)