DTC P0116:00 [MZR-CD (RF Turbo)]
id0102f1146800
DTC P0116:00 |
Engine coolant temperature (ECT) sensor range/performance malfunction |
---|---|
DETECTION CONDITION
|
• The PCM monitors the input signal from the ECT sensor. If the difference between the maximum and the minimum value of the ECT is less than 3 °C {5.4 °F}, the PCM determines that there is a malfunction in the ECT sensor characteristic.
Diagnostic support note
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in the PCM memory.
|
POSSIBLE CAUSE
|
• ECT sensor malfunction
• Connector or terminal malfunction
• Thermostat malfunction
• PCM malfunction
|
![]() |
Diagnostic procedure
STEP |
INSPECTION |
ACTION |
|
---|---|---|---|
1
|
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
|
Yes
|
Go to the next step.
|
No
|
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
|
||
2
|
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
|
Yes
|
Perform the repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
|
No
|
Go to the next step.
|
||
3
|
VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT?
• Connect the M-MDS to the DLC-2.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
|
Yes
|
Go to the next step.
|
No
|
Intermittent concern exists.
Perform the “INTERMITTENT CONCERN TROUBLESHOOTING”.
|
||
4
|
INSPECT ECT SENSOR CONNECTOR FOR POOR CONNECTION
• 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?
|
Yes
|
Repair or replace the terminal, then go to Step 8.
|
No
|
Go to the next step.
|
||
5
|
INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Switch the ignition to off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
|
Yes
|
Repair or replace the terminal, then go to Step 8.
|
No
|
Go to the next step.
|
||
6
|
INSPECT ECT SENSOR
• Inspect the ECT sensor.
• Is there any malfunction?
|
Yes
|
Replace the ECT sensor, then go to Step 8.
|
No
|
Go to the next step.
|
||
7
|
INSPECT THERMOSTAT
• Inspect the thermostat.
• Is there any malfunction?
|
Yes
|
Replace the thermostat, then go to the next step.
|
No
|
Go to the next step.
|
||
8
|
VERIFY TROUBLESHOOTING OF DTC P0116:00 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine and warm it up completely.
• Is the PENDING CODE for this DTC present?
|
Yes
|
Replace the PCM, then go to the next step.
|
No
|
Go to the next step.
|
||
9
|
VERIFY AFTER REPAIR PROCEDURE
• Perform the Repair Verification Drive Mode.
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
|
No
|
DTC troubleshooting completed.
|