ENGINE GENERAL INFORMATION AND DIAGNOSIS (H25 ENGINE) 6-1-65
DTC P0115 Engine Coolant Temp. Circuit Malfunction (DTC No.14, 15)
WIRING DIAGRAM
DTC DETECTING CONDITION AND TROUBLE AREA
DTC CONFIRMATION PROCEDURE
[A] : Terminal arrangement of ECM (PCM) coupler viewed from harness side 1. ECT sensor
DTC DETECTING CONDITION TROUBLE AREA
• ECT sensor signal terminal voltage is less than 0.16 V for
5 sec.
• ECT sensor signal terminal voltage is more than 5.0 V for 5
sec.
ECT sensor
ECT sensor circuit
ECM (PCM)
NOTE:
Check to make sure that following conditions are satisfied when using this DTC CONFIRMATION PRO-
CEDURE.
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