2010 Cadillac Truck SRX FWD V6-3.0L Page 1727

2010 Cadillac Truck SRX FWD V6-3.0L Page 1727

瀚慖f less than the specified range, test the wiring harness for internal short. If the circuit test normal, replace the Q23 Line Pressure Control

Solenoid Valve.

3. Test for infinite resistance between each terminal and the low reference circuit terminal 1 X2 and also to the voltage supply circuit terminal 3

X2.

瀚慖f less than the specified range, replace the wiring harness.

4. If all circuit test normal, perform the Control Solenoid Valve Inspection (M36 and MXE) (See: Transmission and Drivetrain/Automatic

Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/AF40-6 - Automatic Transmission).

瀚慖f the inspection test normal, replace the valve body assembly.

Repair Instructions

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

* Control valve body replacement-Refer to Control Valve Body Replacement (See: Transmission and Drivetrain/Automatic

Transmission/Transaxle/Valve Body/Service and Repair/AF40-6 - Automatic Transmission/Control Valve Body Replacement) for

replacement, setup and programming.

* TCM-Refer to Control Module References (See: Testing and Inspection/Programming and Relearning) for replacement, setup and

programming.

* Perform the Transmission Adaptive Functions (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and

Operation/AF40-6 - Automatic Transmission/Transmission Adaptive Functions).

* Wiring harness-Refer to Automatic Transmission Wiring Harness Replacement (See: Transmission and Drivetrain/Automatic

Transmission/Transaxle/Wiring Harness/Service and Repair) for replacement.

P0751

DTC P0751 or P0752

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 Descriptor

DTC P0751

- Shift Solenoid (SS) 1 Valve Performance - Stuck Off

DTC P0752

- Shift Solenoid (SS) 1 Valve Performance - Stuck On

Circuit/System Description

The shift solenoid (SS) valve 1 is part of the control solenoid valve assembly. The SS valve 1 is a normally closed (NC) solenoid valve and controls

fluid to the clutch select valve 2. The solenoid operates by the transmission control module TCM opening or closing the ground circuit. With the

solenoid circuit grounded, solenoid on, the internal plunger moves and allows the metering ball to move away from the feed seat and against the

exhaust seat, creating signal fluid pressure. The signal fluid acts against the clutch select valve 2 to overcome the valve spring force, moving it to

the apply position.

Conditions for Running the DTC

P0751

* The ignition voltage is greater than 8.6 volts.

* The engine speed is 400 RPM or greater for 5.0 seconds.

* The throttle position signal is valid.

* The engine torque signal is valid.

* The output shaft speed is greater than 0 RPM or the throttle position is greater than 0.4 percent.

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

* 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.