2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1704
Circuit/System Description
The clutch pressure (PC) solenoid 2 is part of the control solenoid valve assembly, which has no serviceable components. The normally high clutch
PC solenoid 2 regulates and directs the clutch PC solenoid 2 oil pressure to the 3-5 reverse clutch regulator valve and 3-5 reverse clutch boost
valve. Increasing clutch PC solenoid 2 pressure increases pressure to the 3-5 reverse clutch. The TCM varies the current to the PC solenoid 2
through a low side driver. Decreasing the current to the clutch PC solenoid 2 increases clutch PC solenoid 2 oil pressure by closing OFF the
solenoid exhaust port. Increasing the current to the clutch PC solenoid 2, decreases clutch PC solenoid 2 oil pressure by opening the solenoid
exhaust port. Clutch PC solenoid 2 power is supplied by the TCM through a high side driver (HSD). The HSD protects the circuit and components
from excessive current flow. If excessive current flow is detected, the HSD will turn OFF. When the fault is corrected, the HSD will reset.
Conditions for Running the DTC
P0965
* The engine speed is greater than 400 RPM for 5 seconds.
* The ignition voltage is 8.6 volts or greater.
* DTC P0965 has not set this ignition cycle.
P0966
* The engine speed is greater than 400 RPM for 5 seconds.
* The ignition voltage is 8.6 volts or greater.
* DTC P0966 has not set this ignition cycle.
P0967
* The engine speed is greater than 400 RPM for 5 seconds.
* The ignition voltage is 8.6 volts or greater.
* DTC P0967 has not set this ignition cycle.
Conditions for Setting the DTC
P0965
The TCM detects an internal electrical performance malfunction of the clutch PC solenoid 2 control circuit where the measured clutch PC solenoid
2 current does not equal the commanded clutch PC solenoid 2 current for 5 seconds.
P0966
The TCM detects a short to ground on the clutch PC solenoid 2 control circuit for 1 second.
P0967
The TCM detects an open or short to voltage on the clutch PC solenoid 2 control circuit for 1 second.
Action Taken When the DTC Sets
P0965
* DTC P0965 is a Type C DTC.
* The TCM freezes transmission adaptive functions on the 3-5-Reverse clutch.
P0966
* DTC P0966 is a Type A DTC.
* The TCM limits the transmission to reverse and 5th gear.
* The TCM commands maximum line pressure.
* The TCM freezes transmission adaptive functions.
* The TCM turns the high side driver OFF.
* The TCM forces TCC off.
* The TCM inhibits Tap Up/Down function.
* The TCM inhibits manual shifting of forward gears.
P0967
* DTC P0967 is a Type A DTC.
* The TCM limits the transmission to reverse and 3rd gear.
* The TCM commands maximum line pressure.
* The TCM freezes transmission adaptive functions.
* The TCM inhibits Tap Up/Down function.
* The TCM inhibits manual shifting of forward gears.
