Toyota 2GR-FE Manual page 316

ES–160
ECT sensor cold start monitor:
Battery voltage
Time after engine start
ECT at engine start
IAT sensor circuit
Soak time
Accumulated MAF
Engine
Fuel cut
Difference between ECT at engine start and IAT
ECT sensor soak monitor:
Battery voltage
Engine
ES
Soak time
ECT at engine start
Accumulated MAF
TYPICAL MALFUNCTION THRESHOLDS
ECT sensor cold start monitor:
ECT sensor value change
ECT sensor soak monitor:
Difference between current ECT sensor value and previous ECT
sensor value when engine stopped
COMPONENT OPERATING RANGE
Engine coolant temperature
INSPECTION PROCEDURE
HINT:
• If any of DTCs P0115, P0117, P0118 or P0125 are set simultaneously with DTC P0116, the ECT
sensor may have an open or a short circuit. Troubleshoot those DTCs first.
• Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame
data can be helpful in determining whether the vehicle was running or stopped, whether the engine
was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the
time of a malfunction (See page ES-45).
1
CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0116)
Result
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
Display (DTC output)
P0116
10.5 V or more
1 second or more
Less than 60°C (140°F)
OK
5 hours
1,056.06 g or more
Running
OFF
Less than 40°C (104°F)
10.5 V or more
Running
5 hours or more
60°C (140°F) or more
2,101.98 times or more
Less than 5°C (9°F)
Less than 5°C (9°F)
Varies with actual engine coolant temperature
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch on (IG).
(c) Turn the tester on.
(d) Enter the following menus: DIAGNOSIS / ENHANCED II
/ DTC INFO / CURRENT CODES.
(e) Read the DTC.
Proceed to
A