DTC P0116:00 [SKYACTIV-G 2.0]
id0102h1146800
DTC P0116:00 |
ECT sensor circuit range/performance problem |
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DETECTION CONDITION
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• The PCM monitors the maximum value and minimum value of engine coolant temperature when the engine is started and 5 min have been passed after leaving the vehicle 6 h or more. If difference between maximum and minimum values of engine coolant temperature is below 6 °C {11 °F} the PCM determines that there is an ECT sensor circuit range/performance problem.
Diagnostic support note
• This is a continuous monitor (engine cooling system).
• The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
• The DTC is stored in the PCM memory.
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FAIL-SAFE FUNCTION
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POSSIBLE CAUSE
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• ECT sensor connector or terminals malfunction
• PCM connector or terminals malfunction
• ECT sensor malfunction
• Thermostat malfunction
• PCM malfunction
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SYSTEM WIRING DIAGRAM
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
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1
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IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE 2)
• Perform the Freeze Frame PID Data Access Procedure.
• Is the DTC P0116:00 on FREEZE FRAME DATA (Mode 2)?
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Yes
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Go to the next step.
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No
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Go to the troubleshooting procedure for DTC on FREEZE FRAME DATA (Mode 2).
(See DTC TABLE [SKYACTIV-G 2.0].)
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2
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VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED
• Have the FREEZE FRAME DATA (Mode 2)/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (engine cooling system related) been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA (Mode 2)/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS on the repair order, then go to the next step.
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3
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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4
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INSPECT ECT SENSOR CONNECTOR CONDITION
• Switch the ignition to off.
• Disconnect the ECT sensor connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector and/or terminals, then go to Step 9.
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No
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Go to the next step.
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5
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INSPECT PCM CONNECTOR CONDITION
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector and/or terminals, then go to Step 9.
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No
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Go to the next step.
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6
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INSPECT ECT SENSOR
• Inspect the ECT sensor.
• Is there any malfunction?
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Yes
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Replace the ECT sensor, then go to Step 9.
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No
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Go to the next step.
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7
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COMPARE ECT PID VALUE
• Prepare a new ECT sensor.
• Connect the ECT sensor connector to the new one without installing to the engine.
• Switch the ignition to ON and record the ECT PID value.
• Switch the ignition to off.
• Replace the malfunction ECT sensor with new one.
• Start the engine and wait for 5 min.
• Record the ECT PID value.
• Is the difference between each ECT PID values more than 6 °C {11 °F}?
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Yes
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Go to the next step.
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No
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Go to Step 9.
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8
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INSPECT THERMOSTAT
• Switch the ignition to off.
• Inspect the thermostat.
• Is there any malfunction?
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Yes
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Replace the thermostat, then go to the next step.
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No
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Go to the next step.
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9
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VERIFY DTC TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Switch the ignition to off.
• Start the engine and warm it up completely.
• Perform the DTC Reading Procedure.
• Is the same DTC present?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the PCM.
Go to the next step.
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No
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Go to the next step.
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10
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VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [SKYACTIV-G 2.0].)
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No
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DTC troubleshooting completed.
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