ac5wzw00012759
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DTC P0116:00 [PCM (SKYACTIV-G 2.5)]
id0102j9146800
Details On DTCs
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DESCRIPTION |
ECT sensor No.1 circuit range/performance problem |
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DETECTION CONDITION
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Determination conditions
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• During the 5 min after the engine is started, the engine coolant temperature does not increase above 0.7 °C {33 °F}.
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Preconditions
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• Before starting the engine, leave the vehicle with the engine turned off for 6 hours or more.
• The following DTCs are not detected:
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Drive cycle
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• 1
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Self test type
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• CMDTC self test
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Sensor used
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• ECT sensor No.1
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FAIL-SAFE FUNCTION
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• Not applicable
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VEHICLE STATUS WHEN DTCs ARE OUTPUT
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• The check engine light may be illuminated depending on the condition. (Stage 5 only)
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POSSIBLE CAUSE
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• ECT sensor No.1 connector or terminals malfunction
• PCM connector or terminals malfunction
• ECT sensor No.1 loose
• ECT sensor No.1 malfunction
• Poor assembly of engine coolant hose (engine coolant passage malfunction)
• Poor engine coolant, leakage, or freezing
• Use of unspecified engine coolant
• Coolant control valve malfunction
• PCM malfunction
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System Wiring Diagram
Function Explanation (DTC Detection Outline)
ac5wzw00012759
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Repeatability Verification Procedure
PID Item/Simulation Item Used In Diagnosis
PID/DATA monitor item table
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Item |
Definition |
Unit |
Condition/Specification |
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ECT
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Engine coolant temperature input from ECT sensor No.1
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°C, °F
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• Displays ECT
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ECT sensor No.1 voltage
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V
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• ECT is 20 °C {68 °F}: Approx. 3.10 V
• ECT is 40 °C {104 °F}: Approx. 2.16 V
• ECT is 60 °C {140 °F}: Approx. 1.40 V
• ECT is 80 °C {176 °F}: Approx. 0.87 V
• ECT is 100 °C {212 °F}: Approx. 0.54 V
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Function Inspection Using M-MDS
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STEP |
INSPECTION |
RESULTS |
ACTION |
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1
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PURPOSE: 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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2
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PURPOSE: RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION
• Record the FREEZE FRAME DATA/snapshot data on the repair order.
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—
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Go to the next step.
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3
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PURPOSE: VERIFY CONNECTOR CONNECTIONS
• Start the engine.
• Access the ECT PID using the M-MDS.
• Does the PID value fluctuate when the PCM and ECT sensor No.1 connectors are shaken?
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Yes
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Repair or replace the applicable connector parts.
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 7.
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No
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Go to the next step.
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4
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PURPOSE: VERIFY ECT SENSOR NO.1 INPUT SIGNAL
• Access the ECT PID using the M-MDS.
• Is the PID value within specification?
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Yes
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Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 3.
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No
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Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
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Troubleshooting Diagnostic Procedure
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STEP |
INSPECTION |
RESULTS |
ACTION |
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1
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PURPOSE: INSPECT INSTALLATION OF ECT SENSOR NO.1
• Inspect installation of ECT sensor No.1.
• Is the ECT sensor No.1 installed securely?
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Yes
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Go to the next step.
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No
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Retighten the ECT sensor No.1, then go to Step 7.
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2
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PURPOSE: DETERMINE INTEGRITY OF ECT SENSOR NO.1
• Inspect the ECT sensor No.1.
• Is there any malfunction?
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Yes
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Replace the ECT sensor No.1, then go to Step 7.
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No
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Go to the next step.
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3
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PURPOSE: VERIFY IF MALFUNCTION CAUSED BY POOR ENGINE COOLANT PASSAGE ASSEMBLY
• Verify the connection condition of the engine coolant passage (such as hoses).
• Is there any malfunction?
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Yes
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Reconnect the engine coolant passage correctly.
Replace the engine coolant, then go to Step 7.
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No
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Go to the next step.
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4
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PURPOSE: VERIFY IF MALFUNCTION RELATED TO ENGINE COOLANT AFFECTS DIAGNOSTIC RESULTS
• Inspect the following:
• Are all items normal?
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Yes
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Go to the next step.
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No
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Replace the engine coolant, then go to Step 7. (Advise the customer to use specified engine coolant used.)
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5
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PURPOSE: VERIFY IF MALFUNCTION RELATED TO ENGINE COOLANT LEAKAGE FROM ENGINE COOLANT PASSAGE AFFECTS DIAGNOSTIC RESULTS
• Perform the “ENGINE COOLANT LEAKAGE INSPECTION”.
• Is there engine coolant leaking from the engine coolant passage?
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Yes
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Repair or replace the malfunctioning location and refill the system with engine coolant.
Go to Step 7.
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No
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Go to the next step.
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6
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PURPOSE: DETERMINE INTEGRITY OF COOLANT CONTROL VALVE
• Inspect the coolant control valve.
• Is there any malfunction?
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Yes
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Replace the coolant control valve, then go to the next step.
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No
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Go to the next step.
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7
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PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION
• Always reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Implement the repeatability verification procedure.
• Perform the DTC Reading Procedure.
• Is the same Pending 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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8
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PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION
• Is any other DTC or pending code stored?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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