6-1-48 ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13)
To combination
(ECT) meter
To other sensors
NOTE:
Before inspecting, be sure to check that cool-
ant temp. meter in combination meter indi-
cates normal operating temperature (Engine
is not overheating).
DTC P0115 ENGINE COOLANT TEMPERATURE (ECT) CIRCUIT
MALFUNCTION
CIRCUIT DESCRIPTION
DTC DETECTING CONDITION POSSIBLE CAUSE
D Low engine coolant temperature (High voltage-High resistance)
D High engine coolant temperature (Low voltage-Low resistance)
D “Lg/R” circuit open or shorted to power
D “G” circuit open
D ECT sensor malfunction
D ECM (PCM) malfunction
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.
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