2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2360
* 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
