Start the engine, and let it idle for 5 minutes or more.
?2.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
ECT SENSOR 1
Less than 10
°F
Less than -12
°C
Do the current condition(s) match the threshold?
YES
Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the PCM. If they are OK, replace ECT sensor 1.?
NO
Go to step 2.
2.
Problem verification:
Problem verification
?1.
Turn the vehicle to the OFF (LOCK) mode.
?2.
Allow the engine to cool to 104 °F (40 °C) or less.
?3.
Start the engine, and let it idle until ECT SENSOR 1 goes up to about 158 °F (70 °C).
Signal
Current conditions
Values
Unit
ECT SENSOR 1
?4.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
ECT SENSOR 2
About 158
°F
About 70
°C
Do the current condition(s) match the threshold?
YES
The failure is duplicated. Go to step 3.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the PCM. If the connections and terminals are OK, replace ECT sensor 1.?