DTC P0711, P0712, or P0713
|
|
DTC P0711, P0712, or P0713
|
DTC P0711
Transmission Fluid Temperature Sensor Performance
DTC P0712
Transmission Fluid Temperature Sensor Circuit Low Voltage
DTC P0713
Transmission Fluid Temperature Sensor Circuit High Voltage
|
Diagnostic Fault Information
|
|
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Signal
|
P0712
|
P0711, P0713
|
P0711, P0713
|
P0711
|
Low Reference
|
-
|
P0711, P0713
|
P0711, P0713
|
P0711
|
Transmission Fluid Temperature
|
Circuit
|
Short to Ground
|
Open
|
Short to Voltage
|
Operating Conditions:
Ignition switch ON, engine stop
Parameter Normal Range:
-40 to +215°C (-40 to +419°F)
|
Signal
|
-43°C (-45°F)
|
215°C (419°F)
|
215°C (419°F)
|
Low Reference
|
-
|
215°C (419°F)
|
215°C (419°F)
|
|
Circuit/System Description
|
The automatic transmission fluid temperature sensor provides transmission fluid temperature to the transmission control module (TCM). The TCM supplies a 5 V reference signal to the sensor. The automatic transmission fluid temperature sensor is a variable resistor that measures the temperature of the transmission fluid and is a thermistor, or a resistor that changes value when the temperature changes. The sensor has a negative temperature coefficient. This means that as the temperature increases the resistance decreases and vice versa. The TCM will compare the temperature difference between the engine coolant temperature sensor and the automatic transmission fluid temperature sensor to determine if the temperatures are within an acceptable operating range of each other. This fault is handled inside the TCM and no external circuits are involved.
|
Conditions for Running the DTC
|
P0711
|
•
|
The ignition voltage is 10.2-15.5 V.
|
|
•
|
The engine speed is greater than 400 RPM for 2 s.
|
|
•
|
TCM communication is normal.
|
|
•
|
DTCs P0712, P0713 are not set.
|
|
•
|
The transmission is not in emergency mode.
|
|
•
|
The engine speed is greater than 400 RPM for 10 min.
|
|
•
|
Vehicle speed was 40 km/h (25 MPH) or greater at once.
|
P0712
|
•
|
The ignition voltage is 10.2-15.5 V.
|
|
•
|
The engine speed is greater than 400 RPM for 2 s.
|
|
•
|
The transmission is not in emergency mode.
|
|
•
|
TCM communication is normal.
|
P0713
|
•
|
The ignition voltage is 10.2-15.5 V.
|
|
•
|
The engine speed is greater than 400 RPM for 2 s.
|
|
•
|
The transmission is not in emergency mode.
|
|
•
|
Driving time is more than 10 min.
|
|
•
|
TCM communication is normal.
|
|
Conditions for Setting the DTC
|
P0711
The automatic transmission fluid temperature is less than 20°C (36°F) after 10 min driving or more.
P0712
The automatic transmission fluid temperature is more than 200°C (473°F) for 10 s or more after consecutive 30 times.
P0713
The automatic transmission fluid temperature is lower than -43°C (-45°F) for 1 s or more after consecutive 12 times.
|
Action Taken When the DTC Sets
|
|
•
|
The TCM will default the transmission oil temperature to 80°C (353°F).
|
|
•
|
No lock-up slip control
|
|
•
|
No self learning control
|
|
Conditions for Clearing the DTC
|
P0711, P0712, and P0713
These are Type C DTCs.
P0712, P0713
The automatic transmission fluid temperature is between 20-150°C (68-302°F) for 10 s or more.
A correct transmission fluid level is required for a proper function. The automatic transmission fluid temperature sensor is located inside the transmission at the valve body. To ensure that the shown oil temperature is correct, measure the oil temperature with an external thermometer.
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Transmission Component and System Description
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References
for scan tool information
|
Circuit/System Verification
|
|
2.
|
Engine idling at operating temperature, observe the scan tool Transmission Fluid Temperature parameter. The reading should be between -40 to +215°C (-40 to +488°F) and change.
|
|
3.
|
Operate the vehicle at about 60 km/h (37 MPH) for 10 min. Verify the scan tool Transmission Fluid Temperature parameter varies by more than 2°C (3.5°F) to verify that the sensor is not stuck.
|
Operate the vehicle within the conditions for running and setting the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Static Test
|
1.
|
Ignition OFF, remove the K71 Transmission Control Module.
|
|
2.
|
Ignition OFF, test for infinite resistance between the low reference circuit terminal 7 X2 and ground.
|
|
3.
|
If less than the specified range, replace the wiring harness.
|
|
4.
|
Ignition OFF, test for infinite resistance between the signal circuit terminal 8 X2 and ground.
|
|
5.
|
If less than the specified range, replace the wiring harness.
|
|
6.
|
Test for infinite resistance between each terminal and the low reference circuit terminal 7 X2 and also to the signal circuit terminal 8 X2.
|
|
7.
|
If less than the specified range, replace the wiring harness.
|
|
9.
|
If not within the specified range, replace the wiring harness.
|
|
10.
|
If the circuit test normal, replace the K71 Transmission Control Module.
|
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
