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| • | 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 |
|---|---|---|---|---|
Transmission Fluid Temperature Sensor Signal | P0712 | P0713 | P0713 | P0711 |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage |
|---|---|---|---|
Operating Conditions: Drive vehicle, normal operating temperature Parameter Normal Range: -40 to 140°C (-40 to 284°F) | |||
Transmission Fluid Temperature Sensor Signal | >= +254°C / +489°F | <= -254°C / -425°F | <= -254°C / -425°F |
The transmission fluid temperature (TFT) sensor is located inside of the transmission control solenoid valve assembly which has no serviceable components. The TFT sensor provides transmission fluid temperature to the transmission control module (TCM). This fault is handled inside the TCM and no external circuits are involved.
| • | DTC P0101, P0102, P0103, P0106, P0107, P0108, P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0401, P042E, P0658, P0668, P0669, P06AD, P06AE, P0711, P0712, P0713, P0717, P0722, P0723, P0962, P0963, P0966, P0967, P0970, P0971, P215C, P2720, P2721, P2729, or P2730 is not set. |
| • | The engine speed is greater than 400 RPM for 5 seconds. |
| • | The ignition voltage is greater than 9.0 volts. |
| • | The throttle position signal is valid. |
| • | The engine torque signal is valid. |
| • | The engine speed is greater than 400 RPM for 5 seconds. |
| • | The ignition voltage is greater than 9.0 volts. |
| • | DTC P0712, P0716, P0717, P0722, or P0723 is not set. |
| • | The engine speed is greater than 500 RPM for 5 seconds. |
| • | The ignition voltage is greater than 9.0 volts. |
| • | DTC P0713, P0716, P0717, P0722, or P0723 is not set. |
The difference between the TFT and TCM temperature and the difference between the TFT and TCM power up temperature are both greater than 20-50°C (36-90°F) for 4 seconds. The temperature threshold is dependent on the average temperature of the TFT, TCM temperature, and TCM power up temperature.
The TFT is greater than 254°C (489°F) for 1 minute.
The TFT is less than -254°C (-425°F) for 1 minute.
| • | DTCs P0711, P0712, and P0713 are Type B DTCs. |
| • | The TCM defaults to a calculated TFT based on the TCM temperature. |
DTCs P0711, P0712, and P0713 are Type B DTCs.
The TCM temperature sensor is located inside of the control solenoid valve assembly and its output should resemble that of the TFT sensor's output.
Automatic Transmission Controls Schematics
| • | Electronic Component Description for control solenoid valve assembly |
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
| ⇒ | If not within the specified range, replace the Q8 control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement . |
| ⇒ | If the Transmission Fluid Temperature parameter does not increase by greater than 2°C (3.5°F) or the Transmission Fluid Temperature parameter is not within 20°C (36°F) of the TCM Temperature parameter, then replace the Q8 control solenoid valve assembly. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| Note: Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection . |
| • | Refer to Control Module References for control solenoid valve assembly replacement, set-up, and programming. |
| • | Perform the Transmission Adaptive Values Learn following all transmission related repairs. |
| © Copyright Chevrolet. All rights reserved |
| © Copyright Chevrolet. All rights reserved |
