2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2725

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2725

* 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 P0961

- Line Pressure Control (PC) Solenoid System Performance

DTC P0962

- Line Pressure Control (PC) Solenoid Control Circuit Low Voltage

DTC P0963

- Line Pressure Control (PC) Solenoid Control Circuit High Voltage

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The line pressure control solenoid is part of the control solenoid valve assembly and is not serviced separately. The line pressure control solenoid

regulates the transmission fluid line pressure when the engine is running. The transmission control module varies the current to the normally high

line pressure control solenoid valve from 0.1 amp for maximum line pressure, to 1.1 amps for minimum line pressure. This is accomplished by

varying the current in order to obtain the desired line pressure in kPa (psi).

Conditions for Running the DTC

* The engine run time is greater than 5 seconds.

* The vehicle speed is less than 200 km/h (124 mph) for 5 seconds.

* The system voltage is 11-18 volts.

P0961

DTC P0961 is not failed this ignition.

P0962

DTC P0962 is not failed this ignition.

P0963

DTC P0963 is not failed this ignition.

Conditions for Setting the DTC

P0961

The transmission control module detects an internal electrical performance malfunction of the line pressure control solenoid control circuit and the

actual line pressure does not equal the commanded line pressure for 300 milliseconds.

P0962

The transmission control module detects an internal low voltage electrical malfunction of the line pressure control solenoid control circuit for 300