Dtc P0116 Engine Coolant Temperature Circuit Range / Performance Problem
DESCRIPTION
INSPECTION PROCEDURE
CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116)
INSPECT THERMOSTAT
DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem |
DESCRIPTION
Refer to DTC P0115 (HILUX_TGN26 RM000000PF50MRX_01.html).DTC No.
| DTC Detection Condition
| Trouble Area
|
P0116
| The engine coolant temperature is between -40 and 60°C (-40 and 140°F) when the engine is started and conditions (a) and (b) are met (2-trip detection logic):
- (a) The vehicle is driven at varying speeds (accelerated and decelerated).
- (b) The engine coolant temperature remains within 3°C (5.4°F) of the initial engine coolant temperature.
| - Thermostat
- Engine coolant temperature sensor
|
INSPECTION PROCEDURE
- HINT:
- If DTC P0115, P0117 or P0118 is output simultaneously with DTC P0116, the engine coolant temperature sensor may have an open or a short circuit. Troubleshoot those DTCs first.
- Read freeze frame data using the intelligent tester. 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, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
| 1.CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the DTCs.
ResultResult
| Proceed to
|
DTC P0116 is output
| A
|
DTC P0116 and other DTCs are output
| B
|
- HINT:
- If any DTCs other than P0116 are output, troubleshoot those DTCs first.
Inspect the thermostat (HILUX_TGN26 RM00000145B01JX.html).