2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1574

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1574

* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and

Inspection/Programming and Relearning) following all transmission related repairs.

* Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See:

Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General

Diagnostics/6T70/6T75 - Automatic Transmission/Control Solenoid Valve and Transmission Control Module Assembly Inspection).

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning) for control solenoid valve assembly replacement, setup,

and programming

AF40-6 - Automatic Transmission

DTC P0711, P0712, or P0713

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

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

Typical Scan Tool Data

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.

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1635

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1635

* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and

Inspection/Programming and Relearning) following all transmission related repairs.

* Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See:

Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General

Diagnostics/6T70/6T75 - Automatic Transmission/Control Solenoid Valve and Transmission Control Module Assembly Inspection).

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Control Valve Lower Body and Upper Body Replacement (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Valve

Body/Service and Repair/6T70/6T75 - Automatic Transmission/Control Valve Lower Body and Upper Body Replacement)

* Low and Reverse Clutch and 1-2-3-4 Clutch Plate Removal (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service

and Repair/Overhaul/8. Low and Reverse Clutch and 1-2-3-4 Clutch Plate Removal)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for control solenoid valve assembly replacement,

setup, and programming

P0777

DTC P0776 or P0777

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC P0776

- Clutch Pressure Control (PC) Solenoid 2 - Stuck Off

DTC P0777

- Clutch Pressure Control (PC) Solenoid 2 - Stuck On

Circuit/System Description

The clutch pressure control (PC) solenoid 2 is part of the control solenoid valve assembly, which has no serviceable components. The PC solenoid

2 regulates transmission fluid pressure to the 3-5-Reverse clutch regulator valve which controls pressure to the 3-5-Reverse clutch. The

transmission control module (TCM) calculates gear ratio based on the RPM signals from the input speed sensor (ISS) and the output speed sensor

(OSS). The TCM compares the expected transmission gear ratio to the calculated gear ratio for each commanded gear.

Conditions for Running the DTC

P0776

* No ISS DTCs 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, P0716, P0717, P0722, P0723, or P182E.

* The ignition voltage is greater than 8.6 volts.

* The engine speed is greater than 400 RPM for 5 seconds.

* The transmission fluid temperature is 0掳C (32掳F) or greater.

* The transmission output speed is 16 RPM or greater, or the throttle position is 0.4 percent or greater.

* The throttle position signal is valid.

* The high side driver is commanded ON.

P0777

* No DTCs 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, P0716, P0717, P0722, P0723, or P182E.

* The transmission fluid temperature is 0掳C (32掳F) or greater.

* The transmission output shaft speed is 350 RPM or greater.

* The transmission input speed is 200 RPM or greater.

* The commanded gear is not 1st range.

* The high side driver is enabled.

Conditions for Setting the DTC