Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1VD-FTV ENGINE CONTROL
CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116)
REPLACE ENGINE COOLANT TEMPERATURE SENSOR
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem
DESCRIPTION
A thermistor is built into the engine coolant temperature sensor and it changes its resistance value according to the engine coolant temperature.
The structure of the sensor and connection to the ECM is the same as that of the intake air temperature sensor.
| DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
| With the engine coolant temperature below 60°C (140°F), start the engine and idle it for 5 minutes. Then drive the vehicle at a speed of 40 km/h (25 mph) or more for a total of 5 minutes or more and check that the engine coolant temperature changes by 1°C (1.8°F) or more. | When engine is started cold and warmed up, the engine coolant temperature sensor value does not change (2 trip detection logic). | Thermostat Engine coolant temperature sensor |
| After the warmed up engine is stopped and the next cold engine start is performed, the engine coolant temperature sensor value does not change (2 trip detection logic). |
| DTC No. | Data List |
| P0116 | Coolant Temp |
- HINT:
MONITOR DESCRIPTION
When a cold engine start is performed and then the engine is warmed up, if the engine coolant temperature sensor value does not change, it is determined that a malfunction has occurred. If this is detected in 2 consecutive driving cycles, the MIL is illuminated and a DTC is stored.
If the engine coolant temperature sensor value does not change after the warmed up engine is stopped and then the next cold engine start is performed, it is determined that a malfunction has occurred. If this is detected in 2 consecutive driving cycles, the MIL is illuminated and a DTC is stored.
INSPECTION PROCEDURE
- NOTICE:
- HINT:
- Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
| 1.CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116) |
Connect the GTS to the DLC3.
Turn the engine switch on (IG) and turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Read the DTCs.
| Result | Proceed to |
| P0116 is output | A |
| P0116 and other DTCs are output | B |
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| A | |
| 2.INSPECT THERMOSTAT |
Inspect the thermostat ().
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| OK | |
| 3.REPLACE ENGINE COOLANT TEMPERATURE SENSOR |
Replace the engine coolant temperature sensor ().
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| 4.REPLACE THERMOSTAT |
Replace the thermostat ().
| NEXT | |
| 5.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
Connect the GTS to the DLC3.
Turn the engine switch on (IG) and turn the GTS on.
Enter the following menus: Engine and ECT / Data List / Coolant Temp.
Check that the engine coolant temperature is 60°C (140°F) or less.
Start the engine.
Idle the engine for 5 minutes, and then drive the vehicle at a speed of 40 km/h (25 mph) or more for a total of 5 minutes or more.
Check that the engine coolant temperature changes by 1°C (1.8°F) or more.
| NEXT | ||
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