Tuesday, December 29, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 844

2010 Cadillac Truck SRX AWD V6-3.0L Page 844



1. Connect a test lamp and ammeter in series between both Q37 shock absorber actuator harness connector control circuit terminals.



2. Ignition ON, with a scan tool, attempt to clear all K19 suspension control module DTC's (codes may not clear).



3. With a scan tool, command the Damper Actuator to Increase the amperage to approximately 400 mA and Decrease to 0 mA while comparing



the ammeter displayed values and scan tool Damper Actuator Command parameter displayed values. Verify the following:



* The test lamp is illuminated.



* The ammeter displayed values and scan tool Damper Actuator Command parameter displayed values change and are simultaneously



within 15 mA of each other.



瀚慖f the test lamp is not illuminated and/or the values are not within the specified range, test both control circuits for a short to voltage, short



to ground, or open/high resistance. If all circuits test normal, replace the K19 suspension control module.



4. If all circuits test normal, test or replace the Q37 shock absorber actuator.



Component Testing



Static Test



1. Ignition OFF, disconnect the harness connector at the appropriate Q37 shock absorber actuator.



2. Test for 2-3 ohm between the Q37 shock absorber actuator control terminals.



瀚慖f not within the specified range, replace the Q37 shock absorber actuator.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Strut, Strut Component, or Spring Replacement (See: Steering and Suspension/Suspension/Suspension Spring ( Coil / Leaf )/Service and



Repair/Front Suspension Coil Spring)



* Shock Absorber Replacement (See: Steering and Suspension/Suspension/Suspension Strut / Shock Absorber/Service and Repair/Rear



Suspension Shock Absorber)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for suspension control module replacement, setup,



and programming



C0590



DTC C0575, C0580, C0585, or C0590



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 Descriptors



DTC C0575 02



- Left Front Damper Actuator Circuit Short to Ground



DTC C0575 04



- Left Front Damper Actuator Circuit Open



DTC C0575 0F



- Left Front Damper Actuator Circuit Signal Erratic



DTC C0580 02



- Right Front Damper Actuator Circuit Short to Ground



DTC C0580 04



- Right Front Damper Actuator Circuit Open



DTC C0580 0F



- Right Front Damper Actuator Circuit Signal Erratic



DTC C0585 02



- Left Rear Damper Actuator Circuit Short to Ground