2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1962
The shift control solenoid (SLC3) is installed on the front valve body. The solenoid linearly control hydraulic pressure in response to signals output
from the transmission control module (TCM). Through this, the SLC3 controls operating hydraulic pressure to the clutch 3 for smooth shifting.
According to each shift control solenoid assembly, the transmission shifts from 1st gear into 6th gear and vice versa. As a fail-safe function, if any
shift control solenoid assembly abnormality occurs, the TCM will disable the current to the solenoids.
Conditions for Running the DTC
P2716
* The ignition voltage is between 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* Driving in D range.
* TCM communication is normal.
* DTCs P2720 and P2721 are not set.
P2719
* The ignition voltage is between 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* Driving in D range.
* TCM communication is normal.
* The Automatic Transmission Fluid Temperature is more than 20掳C (68掳F).
* SLC3 current is more than 0.85 A.
* SLC3 current is not changed.
P2720
* The ignition voltage is between 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* Driving in D range.
* TCM communication is normal.
* DTC P2721 is not set.
P2721
* The ignition voltage is between 10.2-15.5 V.
* The engine speed is greater than 400 RPM for 2 s.
* The transmission is not in emergency mode.
* Driving in D range.
* TCM communication is normal.
* DTC P2720 is not set.
Conditions for Setting the DTC
P2716
Deviation between commanded current and feedback current
P2719
The TCM detects the error current more than 80 mA for 2.75 ms.
P2720
The TCM detects at least 5 times less than 23 mA current consumption of the SLC3 control circuit for 100 ms.
P2721
The TCM detects at least 5 times more than 1.333 A current consumption of the SLC3 control circuit for 100 ms.
Action Taken When the DTC Sets
P2716, P2719
* DTCs P2716 and P2719 are Type B DTCs.
* The TCM turns OFF all solenoids.
* The TCM allows the vehicle to operate only in the second gear and "R" range after a stop.
P2720, P2721
* DTCs P2720 and P2721 are Type B DTCs.
* No self learning function
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