Subaru Crosstrek Service Manual: Dtc p0197 engine oil temperature sensor "a" circuit low
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P0197 ENGINE OIL TEMPERATURE SENSOR "A" CIRCUIT LOW
DTC detecting condition:
Immediately at fault recognition
Trouble symptom:
• Hard to start
• Improper idling
• Poor driving performance
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION">
, and Inspection Mode Inspection Mode > PROCEDURE">.
Wiring diagram:
Engine electrical system Engine Electrical System">
| STEP | CHECK | YES | NO |
1.CHECK CURRENT DATA.
1) Start the engine.
2) Read the value of «Oil Temperature» using Subaru Select Monitor.
NOTE:
For detailed operation procedures, refer to “Current Data Display For Engine”. Subaru Select Monitor">
Is the value of «Oil Temperature» 150°C (302°F) or more?
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0197 ENGINE OIL TEMPERATURE SENSOR "A" CIRCUIT LOW">Go to Step 2.
Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE:
In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
2.CHECK HARNESS BETWEEN ECM AND ENGINE OIL TEMPERATURE SENSOR CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM.
3) Disconnect the connectors from the engine oil temperature sensor.
4) Measure the resistance between ECM connector and chassis ground.
Connector & terminal
(B134) No. 20 — Chassis ground:
Is the resistance 1 M? or more?
Replace the engine oil temperature sensor. Engine Oil Temperature Sensor">
Repair the short circuit to ground in the harness between the ECM connector and engine oil temperature sensor connector.
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the oil temperature sensor.
Judge as NG when outside of the judgment value.
2. COMPONENT DESCRIPTION
(A) | Resistance value (k?) | (B) | Temperature °C (°F) | ||
(1) | Connector | (2) | Thermistor element |
3. EXECUTION CONDITION
Secondary Parameters | Execution condition |
None |
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Malfunction Criteria | Threshold Value |
Output voltage | < 0.203 V |
Time Needed for Diagnosis: 500 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
Dtc p0196 engine oil temperature sensor "a" range/performance
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0196 ENGINE OIL TEMPERATURE SENSOR "A" RANGE/PERFORMANCEDTC DETECTING CONDITION:Detected when two ...
Dtc p0198 engine oil temperature sensor "a" circuit high
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0198 ENGINE OIL TEMPERATURE SENSOR "A" CIRCUIT HIGHDTC detecting condition:Immediately at fault re ...
Other materials:
Removal
CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Transmission Control DeviceREMOVAL1. Remove the transmission assembly from the vehicle. Automatic Transmission Assembly > REMOVAL">2. Remove the inhibitor switch. Inhibitor Switch > REMOVAL">3. Remove the oil pan and oil strainer ...
Immobilizer
The immobilizer system is designed to
prevent an unauthorized person from
starting the engine. Only keys registered
with your vehicle's immobilizer system can
be used to operate your vehicle. This
system, however, is not a 100% anti-theft
guarantee.
For models with "keyless access with
pus ...
Stopping engine
Stop the vehicle completely.
Move the select lever to the "P"
position.
Press the push-button ignition switch.
The engine will stop, and the power will be
switched off.
WARNING
Do not touch the push-button
ignition switch during driving.
When the push-button ignition
switch is ...
