Chrysler Sebring 2004 Service Manual page 1995

DRIVEABILITY - GAS
P0125-CLOSED LOOP TEMP NOT REACHED —
TEST
2 Note: This test works best if performed on a cold engine (cold soak)
Turn the ignition on.
With the DRBIII , read the ECT Degree value. If the engine was allowed to sit
overnight (cold soak), the temperature value should be a sensible value that is
somewhere close to the ambient temperature.
Note: If engine coolant temperature is above 82°C (180°F), allow the engine
to cool until 65°C (150°F) is reached.
Start the Engine.
During engine warm-up monitor the ECT Degree value. The temp deg value change
should be a smooth transition from start up to normal operating temp 82°C (180°F)
. Also monitor the actual coolant temperature with a thermometer.
NOTE: As the engine warms up to operating temperature, the actual coolant
temperature (thermometer reading) and the Eng Coolant Tmp Deg in the
DRB values should stay relatively close to each other.
Using the appropriate service information, determine the proper opening tempera-
ture of the thermostat.
Did the thermostat open at the proper temperature?
Yes → Go To 3
→ Replace the thermostat.
No
3 Turn the ignition on.
With the DRBIII , read the Eng Coolant Tmp Deg value. If the engine was allowed
to sit overnight (cold soak), the temperature value should be a sensible value that is
somewhere close to the ambient temperature.
Note: If engine coolant temperature is above 82°C (180°F), allow the engine
to cool until 65°C (150°F) is reached.
Start the Engine.
During engine warm-up monitor the ECT Degree value. The temp deg value change
should be a smooth transition from start up to normal operating temp 82°C (180°F)
. Also monitor the actual coolant temperature with a thermometer.
NOTE: As the engine warms up to operating temperature, the actual coolant
temperature (thermometer reading) and the ECT Degree in the DRB values
should stay relatively close to each other.
Is the thermometer reading relatively close to the DRBIII ECT reading?
Yes → Test Complete.
→ Replace the ECT Sensor.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Continued
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APPLICABILITY
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All