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Home >> Chrysler >> 2001 >> Sebring LX, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Powertrain Diagnostic Procedures - Except Coupe) >> Diagnostic Information And Procedures >> DRIVEABILITY - NGC - Diagnostic Tests >> P1115-General Temp Sensor Performance >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS PROCEDURE - P1115-GENERAL TEMP SENSOR PERFORMANCE

TEST ACTION APPLICABILITY
1
NOTE: Due to the fact that the PCM compares the IAT, AAT and ECT sensors to see if they are within a calibrated temp of one another, the use of a block heater can cause false readings for the PCM. Check with the customer to see if they use a block h
Ignition on, engine not running.
NOTE: It is possible that more then one temperature sensor caused this DTC to set. After a repair has been made the remaining temperature sensors must be checked using the DRB temperature probe.
With the DRBIII®, read DTCs and record the related Freeze Frame data.Is the Good Trip displayed and equal to zero?Yes --> Go To 2No --> Refer to the INTERMITTENT CONDITION .Perform POWERTRAIN VERIFICATION TEST VER - 5 .		 All
2 Turn the ignition on.
With the DRBIII®, read and record the AAT Sensor Temperature value Using the DRB Temperature Probe #CH7050, measure the ambient air temperature near the AAT sensor.
Is the AAT Sensor value with -15°C (5°F) of the temperature probe reading?
Yes --> Go To 3
No --> Go To 6		 All
3 Turn the ignition on.
With the DRBIII®, read and record the IAT Sensor Temperature value Remove the IAT sensor.
Using the DRB Temperature Probe #CH7050, measure the temperature inside the
IAT sensor opening.
Is the IAT Sensor value within -15°C (5°F) of the temperature probe reading?
Yes --> Go To 4
No --> Go To 6		 All
4
WARNING: MAKE SURE THE ENGINE COOLING SYSTEM IS COOL BEFORE REMOVING THE PRESSURE CAP OR ANY HOSE. SEVERE PERSONAL INJURY MAY RESULT FROM ESCAPING HOT COOLANT. THE COOLING SYSTEM IS PRESSURIZED WHEN HOT.
Turn the ignition on.With the DRBIII®, read and record the ECT Sensor Temperature valueUsing the DRB Temperature Probe #CH7050, measure the engine coolant temperature.Is the ECT Sensor value with -15°C (5°F) of the temperature probe reading?Yes --> Go To 5No --> Go To 6		 All
5 Inspect the Temperature sensors for any physical damage.
Inspect the engine coolant. Ensure the coolant is at the proper level. Refer to the Service Information COOLING.
Ensure the Temperature sensors are properly mounted.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.

Refer to any Technical Service Bulletins (TSBs) that may apply.
With the engine running at normal operating temperature, monitor the Temperature sensor parameters while wiggling the wire harness. Look for parameter values to change.
Visually inspect the related wire harness. Look for any chafed, pierced, pinched, partially broken wires and broken, bent, pushed out, or corroded terminals.
CAUTION: NEVER PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.

Inspect and clean all PCM, engine, and chassis grounds.
Were any problems found during the above inspections?
Yes --> Repair as necessary
Perform POWERTRAIN VERIFICATION TEST VER - 5 .
No --> Test Complete.		 All
6
NOTE: Visually inspect both the component and the PCM connectors. Look for damage, partially broken wires and backed out or corroded terminals Turn the ignition off.
Disconnect the applicable Temperature Sensor harness connector.Ignition on, engine not running.Measure the voltage of the Signal circuit in the applicable Temperature Sensor harness connector.Is the voltage above 5.2 volts?Yes --> Repair the short to battery voltage in the Signal circuit.Perform POWERTRAIN VERIFICATION TEST VER - 5 .No --> Go To 7		 All
7 Turn the ignition off.
Disconnect the applicable Temperature Sensor harness connector.
Ignition on, engine not running.
With the DRBIII®, read the Temperature Sensor voltage.
Is the voltage above 4.6 volts?
Yes --> Go To 8
No --> Go To 11		 All
8 Turn the ignition off.
Disconnect the applicable Temperature Sensor harness connector.
Using a jumper wire, jumper across the Temperature Sensor harness connector.
Ignition on, engine not running.
With the DRBIII®, read the Temperature voltage.
Is the voltage below 1.0 volt?
Yes --> Replace the applicable Temperature Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5 .
No --> Go To 9		 All
9 Turn the ignition off.
Disconnect the applicable Temperature Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.

Measure the resistance of the Signal circuit from the Temperature Sensor harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes --> Go To 10
No --> Repair the open in the Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 .		 All
10 Turn the ignition off.
Disconnect the applicable Temperature Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.

Measure the resistance of the Sensor ground circuit from the Ambient Air Temperature Sensor harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes -->
NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. Replace and program the Powertrain Control Module in accordance with the Service Information.

Perform POWERTRAIN VERIFICATION TEST VER - 5 .
No --> Repair the open in the Sensor ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 .		 All
11 Turn the ignition off.
Disconnect the applicable Temperature Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the Signal circuit in the Temperature harness connector.
Is the resistance below 100 ohms?
Yes --> Repair the short to ground in the Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 .
No --> Go To 12		 All
12 Turn the ignition off.
Disconnect the applicable Temperature Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the Signal circuit and the Sensor ground circuit in the Temperature Sensor harness connector.
Is the resistance below 100 ohms?
Yes --> Repair the Sensor ground shorted to the Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 .
No -->
NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage or terminal push out. Repair as necessary. Replace and program the Powertrain Control Module in accordance with the Service Information.

Perform POWERTRAIN VERIFICATION TEST VER - 5 .		 All
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