2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2573
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/6L45/6L50/6L80/6L90 - Automatic
Transmission/Control Solenoid Valve and Transmission Control Module Assembly Inspection).
3. Place the Q8 control solenoid valve assembly on a clean work surface near the transmission assembly.
4. Connect DT-47825-10 - jumper harness between the vehicle wire harness electrical connector, and the Q8 control solenoid valve assembly
electrical connector.
5. Ignition ON, verify with a scan tool the following test status parameters display OK:
* Pressure Control Solenoid Valve 5 Performance Test Status
* Pressure Control Solenoid Valve 5 Control Circuit High Voltage Test Status
* Pressure Control Solenoid Valve 5 Control Circuit Low Voltage Test Status
瀚慖f any test status parameter displays Fault or Malfunction, replace the Q8 control solenoid valve assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
* Replace the control solenoid valve assembly. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
2ML70 - Automatic Transmission
DTC P2728-P2730
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 P2728
- Pressure Control (PC) Solenoid 5 System Performance
DTC P2729
- Pressure Control (PC) Solenoid 5 Control Circuit Low Voltage
DTC P2730
- Pressure Control (PC) Solenoid 5 Control Circuit High Voltage
Diagnostic Fault Information
Circuit/System Description
The clutch pressure control solenoid 5 is part of the control solenoid valve assembly and is not serviced separately. The transmission control
module supplies 12 volts to the PC solenoid 5 through the high side driver 1 circuit. The transmission control module controls the clutch pressure
control solenoid 5 through the clutch pressure control solenoid 5 control circuit. The normally low clutch pressure control solenoid 5 flows fluid to
the actuator feed limit valve when commanded ON and exhausts fluid when commanded OFF. The clutch pressure control solenoid 5 regulates the
transmission fluid pressure from the auxiliary transmission fluid pump in order to maintain transmission fluid pressure during electric only and
auto-stop modes.
Conditions for Running the DTC
Diagnostic Repair parts ,Wiring Diagrams. DTC. TSB,Car, Truck, SUV & Van Acura Chrysler Infiniti Maserati Rolls-Royce Alfa Romeo Dodge Jaguar Mazda Scion Aston Martin Ferrari Jeep McLaren Smart Audi Fiat Karma Mercedes-Benz Spyker BMW Ford Kia Mini Subaru Bentley Freightliner Lamborghini Mitsubishi Tesla Bugatti GMC Land Rover Mobility Ventures Toyota Buick Genesis Lexus Nissan Volkswagen Cadillac Honda Lincoln Porsche Volvo Chevrolet Hyundai Lotus Ram