2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1026
2. Ignition ON, load test for B+ between the ignition circuit terminal 1 and ground.
瀚慖f less than the specified range, test the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal
and the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.
Note: Use the J 35616-200 - Test Lamp Kit for this test. If the J 35616-200 - Test Lamp Kit is not available, use a test lamp that measures
greater than 20 ohm.
3. Connect a test lamp between the control circuit terminal 2 and B+.
Note: The voltage must be measured at the control side of the circuit.
4. Command the appropriate Camshaft Position Actuator Solenoid Valve ON with a scan tool. Load test for less than 1 V between the control
circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the control circuit for an open/high resistance. If the circuit/connections test normal, replace the
K20 Engine Control Module.
5. Remove the Camshaft Position Actuator Solenoid Valve. Inspect the Camshaft Position Actuator Solenoid Valve and mounting area for the
following conditions:
* For a torn, restricted, mis-positioned, or missing screens at the Camshaft Position Actuator Solenoid Valve
* For engine oil leaks between the oil sealing lands of the Camshaft Position Actuator Solenoid Valve. Inspect the lands of the Camshaft
Position Actuator Solenoid Valve for nicks
* For oil seepage at the Camshaft Position Actuator Solenoid Valve connector
瀚慖f a condition is found, replace Q6 Camshaft Position Actuator Solenoid Valve.
6. Ignition OFF, swap the appropriate Camshaft Position Actuator Solenoid Valve with a Camshaft Position Actuator Solenoid Valve that is
operating correctly.
7. Engine idling. Command the appropriate Camshaft Position Actuator from 0 degrees to 40 degrees and back to zero while observing the
appropriate scan tool Camshaft Position Variance parameters. The Camshaft Position Variance should be less than 2 degrees in each of the
commanded states.
瀚慖f greater than the specified value, replace the mechanical camshaft position actuator.
8. If all circuits/connections test normal, test or replace the Q6 Camshaft Position Actuator Solenoid Valve.
Component Testing
1. Ignition OFF, disconnect the harness connector at the appropriate Q6 Camshaft Position Actuator Solenoid Valve.
2. Test for 7-12 ohm between the control terminal 2 and the ignition terminal 1 of the Q6 Camshaft Position Actuator Solenoid Valve.
瀚慖f not within the specified range, replace the Q6 Camshaft Position Actuator Solenoid Valve.
3. Test for infinite resistance between each terminal and the Q6 Camshaft Position Actuator Solenoid Valve housing.
瀚慖f not the specified value, replace the Q6 Camshaft Position Actuator Solenoid Valve.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Camshaft Position Actuator Replacement - Bank 1 (LF1) ()
* Camshaft Position Actuator Replacement - Bank 2 (LF1) ()
* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake (See: Engine, Cooling and
Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid
Valve Solenoid Replacement - Bank 1 (Right Side) Intake)
* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust (See: Engine, Cooling and
Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid
Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust)
* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake (See: Engine, Cooling and
Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid
Valve Solenoid Replacement - Bank 2 (Left Side) Intake)
* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust (See: Engine, Cooling and
Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid
Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, programming, and setup
