Service Manual — page 152 of 715

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3-62 FUEL SYSTEM (DFI)
Water Temperature Sensor (Service Code 14) (DTC P0115, P0117)

• When   only the service code is available, follow all inspec-
  tion procedures in this section.
• When   the DTC (Diagnostic Trouble Code) is available,
  follow inspection procedures that has have the DTC in
    the headline in this section.
Water Temperature Sensor Removal/Installation
                            NOTICE
    Never drop the water temperature sensor especially
    on a hard surface. Such a shock to the sensor can
    damage it.

• Drain the coolant (see Coolant Change in the Periodic
  Maintenance chapter).
• Disconnect:
   Water Temperature Sensor Connector [A]
• Water Temperature Sensor [B] with O-ring
  Remove:

• Replace  the O-ring with a new one.
• Tighten:
    Torque - Water Temperature Sensor: 12 N·m (1.2 kgf·m, 106
               in·lb)
• Connect:
    Water Temperature Sensor Connector
• ing the
  Fill    engine with coolant and bleed the air from the cool-
       system (see Coolant Change in the Periodic Mainte-
    nance chapter).
Water Temperature Sensor Inspection (Service
Code 14/DTC P0115)
(Checking wire for open circuit)
• Disconnect:
   ECU Connectors (see ECU Removal)
   Water Temperature Sensor Connector (see Water Tem-
   perature Sensor Removal/Installation)
• Check the wiring for continuity between the ECU harness
  connector and sensor connector.
    Wiring Continuity Inspection
     ECU Harness Connector [A] ←→
        Water Temperature Sensor Connector [B]
          W/BL lead (ECU terminal 30, W/G lead) [C]
    If there is no continuity, repair or replace the main harness
    or subharness.
    If there is continuity, first check the water temperature
    sensor wirings (see Water Temperature Sensor Circuit).
    If there is no continuity, repair or replace the main harness
    or subharness.
    If there is continuity, second check the terminals of the
    sensor and ECU for corrosion or bent.
    If the terminals are corroded or bent, replace the water
    temperature sensor and/or ECU.