• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
TFT Sensor Signal | P0712 | P0713 | P0713 | P0218, P0711 |
Low Reference | -- | P0713 | -- | P0218, P0711 |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage |
---|---|---|---|
Operating Conditions: Engine running in Park, normal operating temperature Parameter Normal Range: Varies near coolant temperature | |||
Trans. Fluid Temp. | 150°C (304°F) | -40°C (-40°F) | -40°C (-40°F) |
The automatic transmission fluid temperature (TFT) sensor is a negative coefficient thermistor. When the transmission fluid is cold, the sensor resistance is high. As the transmission fluid warms up, the sensor resistance decreases. This diagnostic monitors the TFT sensor circuit. The circuit may be functional but not in the normal operating range. This diagnostic indicates stuck, erratic, intermittent, or skewed values, resulting in reduced system performance. The TFT sensor range is -40 to +150°C (-40 to +304°F).
• | No ECT DTCs P0117 or P0118. |
• | No ISS DTCs P0716 or P0717. |
• | No VSS DTCs P0722 or P0723. |
• | DTC P0711 has not passed this ignition cycle. |
• | The transmission fluid temperature is -39 to +149°C (-38 to +300°F). |
• | The engine coolant temperature (ECT) is at least 70°C (158°F) and has changed by 55°C (99°F) since start up. |
• | The vehicle speed is 8 km/h (5 mph) or more for at least 5 minutes cumulative. |
• | The torque converter clutch (TCC) slip is 120 RPM or more for at least 5 minutes cumulative. |
• | The engine coolant temperature is at least 70°C (158°F) and has changed by 55°C (99°F) since start up. |
• | The vehicle speed is 8 km/h (5 mph) or more for at least 5 minutes cumulative. |
• | The calc. throttle position is between 8 and 90 percent. |
• | The engine torque is 50 N·m (37 lb ft) or more. |
• | The vehicle speed is 8 km/h (5 mph) or more. |
• | The engine speed is greater than 500 RPM. |
The engine is running for 5 seconds.
• | No ISS DTCs P0716 or P0717. |
• | No OSS DTCs P0722 or P0723. |
• | The engine is running for 5 seconds. |
• | The output speed is 200 RPM or more for 200 seconds cumulatively. |
• | The TCC slip speed is 120 RPM or more for 200 seconds cumulatively. |
The change in transmission fluid temperature is 2°C (4°F) or less when the TFT is -40 to +21°C (-40 to +68°F at start up for 80 seconds.
The change in transmission fluid temperature is 2°C (4°F) when the TFT is 129-149°C (264-300°F) at start up for 80 seconds.
The change in transmission fluid temperature is 20°C (68°F) or less after a predetermined time.
The TFT sensor is greater than 150°C (302°F) for 12 seconds.
The TFT is less than -40°C (-40°F) for 1 minute and 20 seconds.
• | DTCs P0711, P0712, and P0713 are Type C DTCs. |
• | The transmission control module (TCM) freezes transmission adaptive functions. |
• | The TCM calculates a default TFT from the ECT sensor and the intake air temperature (IAT) sensor. |
DTCs P0711, P0712, and P0713 are Type C DTCs.
Automatic Transmission Controls Schematics
Electronic Component Description for automatic transmission fluid temperature sensor information
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
J 44152 Jumper Harness (20 pins)
⇒ | If the transmission fluid is low or discolored, refer to Automatic Transmission Fluid Filter and Seal Replacement. |
Important: Additional DTCs may set when disconnecting the automatic transmission (AT) inline 20-way connector.
⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the TCM. |
⇒ | If not the specified value, test the signal circuit terminal L for a short to ground. If the circuit tests normal, replace the TCM. |
⇒ | If less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the TCM. |
⇒ | If not within the specified range, test the circuits for a short to ground or an open/high resistance. If a circuit is shorted or open replace the internal transmission harness, if the circuits test normal, replace the TFT sensor. |
⇒ | If not the specified value, test the circuits for a short to ground or an open/high resistance. If a circuit is shorted replace the internal transmission harness, if the circuits test normal, replace the TFT. |
Perform the Diagnostic Repair Verification after completing the repair.
• | Control Module References for TCM replacement, setup, and programming |
• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
TFT Sensor Signal | P0712 | P0713 | P0713 | P0218, P0711 |
Low Reference | -- | P0713 | -- | P0218, P0711 |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage |
---|---|---|---|
Operating Conditions: Engine running in Park, normal operating temperature Parameter Normal Range: Varies near coolant temperature | |||
Trans. Fluid Temp. | 150°C (304°F) | -40°C (-40°F) | -40°C (-40°F) |
The automatic transmission fluid temperature (TFT) sensor is a negative coefficient thermistor. When the transmission fluid is cold, the sensor resistance is high. As the transmission fluid warms up, the sensor resistance decreases. This diagnostic monitors the TFT sensor circuit. The circuit may be functional but not in the normal operating range. This diagnostic indicates stuck, erratic, intermittent, or skewed values, resulting in reduced system performance. The TFT sensor range is -40 to +150°C (-40 to +304°F).
• | No ECT DTCs P0117 or P0118. |
• | No ISS DTCs P0716 or P0717. |
• | No VSS DTCs P0722 or P0723. |
• | DTC P0711 has not passed this ignition cycle. |
• | The transmission fluid temperature is -39 to +149°C (-38 to +300°F). |
• | The engine coolant temperature (ECT) is at least 70°C (158°F) and has changed by 55°C (99°F) since start up. |
• | The vehicle speed is 8 km/h (5 mph) or more for at least 5 minutes cumulative. |
• | The torque converter clutch (TCC) slip is 120 RPM or more for at least 5 minutes cumulative. |
• | The engine coolant temperature is at least 70°C (158°F) and has changed by 55°C (99°F) since start up. |
• | The vehicle speed is 8 km/h (5 mph) or more for at least 5 minutes cumulative. |
• | The calc. throttle position is between 8 and 90 percent. |
• | The engine torque is 50 N·m (37 lb ft) or more. |
• | The vehicle speed is 8 km/h (5 mph) or more. |
• | The engine speed is greater than 500 RPM. |
The engine is running for 5 seconds.
• | No ISS DTCs P0716 or P0717. |
• | No OSS DTCs P0722 or P0723. |
• | The engine is running for 5 seconds. |
• | The output speed is 200 RPM or more for 200 seconds cumulatively. |
• | The TCC slip speed is 120 RPM or more for 200 seconds cumulatively. |
The change in transmission fluid temperature is 2°C (4°F) or less when the TFT is -40 to +21°C (-40 to +68°F at start up for 80 seconds.
The change in transmission fluid temperature is 2°C (4°F) when the TFT is 129-149°C (264-300°F) at start up for 80 seconds.
The change in transmission fluid temperature is 20°C (68°F) or less after a predetermined time.
The TFT sensor is greater than 150°C (302°F) for 12 seconds.
The TFT is less than -40°C (-40°F) for 1 minute and 20 seconds.
• | DTCs P0711, P0712, and P0713 are Type C DTCs. |
• | The transmission control module (TCM) freezes transmission adaptive functions. |
• | The TCM calculates a default TFT from the ECT sensor and the intake air temperature (IAT) sensor. |
DTCs P0711, P0712, and P0713 are Type C DTCs.
Automatic Transmission Controls Schematics
Electronic Component Description for automatic transmission fluid temperature sensor information
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
J 44152 Jumper Harness (20 pins)
⇒ | If the transmission fluid is low or discolored, refer to Automatic Transmission Fluid Filter and Seal Replacement. |
Important: Additional DTCs may set when disconnecting the automatic transmission (AT) inline 20-way connector.
⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the TCM. |
⇒ | If not the specified value, test the signal circuit terminal L for a short to ground. If the circuit tests normal, replace the TCM. |
⇒ | If less than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the TCM. |
⇒ | If not within the specified range, test the circuits for a short to ground or an open/high resistance. If a circuit is shorted or open replace the internal transmission harness, if the circuits test normal, replace the TFT sensor. |
⇒ | If not the specified value, test the circuits for a short to ground or an open/high resistance. If a circuit is shorted replace the internal transmission harness, if the circuits test normal, replace the TFT. |
Perform the Diagnostic Repair Verification after completing the repair.
• | Control Module References for TCM replacement, setup, and programming |