2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2406
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0976
- Shift Solenoid (SS) 2 Control Circuit Low Voltage
DTC P0977
- Shift Solenoid (SS) 2 Control Circuit High Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The shift solenoid 2 is part of the control solenoid valve assembly and is not serviced separately. The control solenoid valve assembly supplies 12
volts to shift solenoid 2 on the high side driver 1 circuit. The control solenoid valve assembly controls the normally closed shift solenoid 2 on the
shift solenoid 2 control circuit. The shift solenoid 2 controls the transmission fluid to the 1-3 clutch regulator valve assembly.
In the OFF position, shift solenoid 2 controls the transmission fluid to the following components:
* EVT 1 mode, oil is supplied to drive motors with generator 1 and 2 for cooling and the hybrid low, 1-2 clutch
* Gear 1, oil is supplied to the hybrid low, 1-2 clutch and the 1-3 clutch
* Gear 2, oil is supplied to the hybrid low, 1-2 clutch and the hybrid direct 2-3-4 clutch
In the ON position, shift solenoid 2 controls the transmission fluid to the following components:
* EVT 2 mode, oil is supplied to drive motors with generator 1 and 2 for cooling and the hybrid direct 2-3-4 clutch
* Gear 3, oil is supplied to the hybrid direct 2-3-4 clutch and the 1-3 clutch
* Gear 4, oil is supplied to the hybrid direct 2-3-4 clutch and the 4th clutch
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 V.
Conditions for Setting the DTC
P0976
The transmission control module detects an internal low voltage electrical malfunction of the shift solenoid 2 control circuit when the shift solenoid
2 is commanded OFF for 1 second.
P0977
The transmission control module detects an internal high voltage electrical malfunction of the shift solenoid 2 control circuit when the shift
solenoid 2 is commanded ON for 1 second.
Action Taken When the DTC Sets
* DTCs P0976 and P0977 are Type A DTCs.
* The transmission control module defaults the transmission to EVT 1 or EVT 2 depending on vehicle speed.
* The transmission control module commands maximum line pressure.
* The transmission control module freezes transmission adaptive functions.
Conditions for Clearing 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