Symptom:
P1115-GENERAL TEMP SENSOR PERFORMANCE
When Monitored and Set Condition:
P1115-GENERAL TEMP SENSOR PERFORMANCE
When Monitored: Engine off time is greater than 480 minutes. Ambient temperature is
greater than -23°C (-9°F).
Set Condition: After a calibrated amount of cool down time, the PCM compares the ECT
Sensor, IAT Sensor and the Ambient Air Temperature Sensor values. If the difference
between (AAT and IAT), (AATand ECT) and (ECT and IAT) are all greater than a
calibrated value, this DTC will set.
POSSIBLE CAUSES
GOOD TRIP EQUAL TO ZERO
OTHER POSSIBLE CAUSES
SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
TEMPERATURE SENSOR VOLTAGE BELOW 1.0 VOLT
SIGNAL CIRCUIT OPEN
SENSOR GROUND CIRCUIT OPEN
SIGNAL CIRCUIT SHORTED TO GROUND
SIGNAL CIRCUIT SHORTED TO SENSOR GROUND
PCM LOW
PCM HIGH
TEST ACTION APPLICABILITY
1 NOTE: The PCM compares IAT,AAT and ECT to determine if they are within
a calibrated temp of one another. Using a block heater that does not meet
OEM specifications or that is not installed at the proper location can defeat
the algorithm in the PCM.
Ignition on, engine not running.
NOTE: It requires more then one temperature sensor input for this DTC to
set. After a repair has been made, all temperature sensors must be checked
again using the DRBIIIt temperature probe.
With the DRBIIIt, read DTCs and record the related Freeze Frame data.
Is the Good Trip displayed and equal to zero?
All
Yes → Go To 2
No → Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
249
DRIVEABILITY - NGC
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