Description
The engine coolant temperature sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
<Reference data>
*: These data are reference values and are measured between ECM terminals 46 (Engine coolant temperature sensor) and 52 (Sensor ground).
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
2.CHECK ENGINE COOLANT TEMPERATURE SENSOR FUNCTION
With CONSULT
With GST
Follow the procedure "With CONSULT" above.
3.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
If "COOLAN TEMP/S" increases to more than 10C (50F) within 65 minutes, stop engine because the test result will be OK. CAUTION: Never overheat engine.
With GST
Follow the procedure "With CONSULT" above.
Diagnosis Procedure
1.CHECK GROUND CONNECTION
2.CHECK ENGINE COOLANT TEMPERATURE SENSOR
3.CHECK THERMOSTAT OPERATION
When the engine is cold [lower than 70C (158F)] condition, grasp lower radiator hose and confirm that the engine coolant does not flow.
4.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Troubleshooting guide
Verify the location of all Intelligent Keys that are
programmed for the vehicle. If another Intelligent
Key is in range or inside the vehicle, the vehicle
system may respond differently than expected.
Symptom
Possible Cause
Remedy
When pushing the ignition switch to sto ...
ABS actuator and electric unit (control unit)
Exploded View
From master cylinder secondary side
Grommet
ABS actuator and electric unit (control
unit) bracket
From master cylinder primary side
To front LH brake caliper
To rear RH brake caliper
To rear LH brake caliper
To front RH brake caliper
ABS actuator and el ...
E-call (SOS) switch (if so equipped)
The E-call (SOS) system switch is used in combination
with a NissanConnectSM Services subscription
to call for assistance in case of an
emergency.
Pushing the switch will (with a paid subscription)
reach a Response Specialist that will provide
assistance based on the situation described ...