Description
The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the ECM.
The modified signal returns to the ECM as the engine oil 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 54 (Engine oil temperature sensor) and 52 (Sensor ground).
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
2.PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
1.CHECK GROUND CONNECTION
2.CHECK EOT SENSOR POWER SUPPLY CIRCUIT
3.CHECK EOT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
4.CHECK ENGINE OIL TEMPERATURE SENSOR
5.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK ENGINE OIL TEMPERATURE SENSOR
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.CHECK SYMPTOM
Check the malfunction symptoms by performing the following items.
Interview the customer to obtain the malfunction information (conditions
and environment when the malfunction
occurred).
Check the symptom.
2.SELF-DIAGNOS ...
Service data and specifications (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel Alignment (Unladen*)
*: Fuel, engine coolant, and lubricants are full. Spare tire, jack, hand
tools, and mats are in designated positions.
Ball Joint
Wheelarch Height (Unladen*1)
*1: Fuel, engine coolant, and lubricants are full. Spare tire, ...
Main line between HVAC and ABS circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and
loose connection (connector side
and harness side).
Harness connector M1
Harness connect ...