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3-62 FUEL SYSTEM (DFI)
Water Temperature Sensor (Service Code 14)
If the reading is out of the standard, remove the ECU
and check the wiring for continuity between main and sub
harness connectors.
Disconnect the ECU and sensor connectors.
Wiring Continuity Inspection
ECU Connector [A] ←→
Sub Harness Connector [B]
W/G lead (ECU terminal 30) [C]
G lead (ECU terminal 49) [D]
Sub Harness Connector [A] ←→
Water Temperature Sensor Connector [B]
W/R lead [C]
W/BL lead [D]
If the wiring is good, check the water temperature sensor
resistance (see Water Temperature Sensor Resistance
Inspection).
Water Temperature Sensor Resistance Inspection
•
Refer to the Water Temperature Sensor Inspection in the
Electrical System chapter.
If the reading is within the standard, but the problem still
exists, replace the ECU (see ECU Removal/Installation).
Water Temperature Sensor Circuit
1. Water Temperature Sensor
2. ECU
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