Friday, March 6, 2020

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 61

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 61



- Passenger Seat Belt Anchor Pretensioner Deployment Loop Open



DTC B001B 0D



- Passenger Seat Belt Anchor Pretensioner Deployment Loop High Resistance



DTC B001B 0E



- Passenger Seat Belt Anchor Pretensioner Deployment Loop Low Resistance



Diagnostic Fault Information



Circuit/System Description



During a side or frontal crash of sufficient force the inflatable restraint sensing and diagnostic module (SDM) will allow current to flow through the



deployment loop in order to deploy the appropriate seat belt anchor pretensioner. The SDM performs continuous diagnostic tests on the deployment



loops to check for proper circuit continuity and for shorts to ground or voltage.



A shorting bar used within the seat belt anchor pretensioner connector will short together both seat belt anchor pretensioner high and low control



circuits when the connector is disconnected, this will help to prevent unwanted deployment of the pretensioner during servicing.



Conditions for Running the DTC



Ignition voltage is between 9-16 V.



Conditions for Setting the DTC



B001A 01, B001B 01



The seat belt anchor pretensioner control circuit is shorted to voltage for 120 milliseconds.



B001A 02, B001B 02



The seat belt anchor pretensioner control circuit is shorted to ground for 120 milliseconds.



B001A 04, B001B 04



The seat belt anchor pretensioner control circuit is open for 120 milliseconds.



B001A 0D, B001B 0D



The seat belt anchor pretensioner deployment loop resistance is more than 4.2 ohm for 120 milliseconds.



B001A 0E, B001B 0E



The seat belt anchor pretensioner deployment loop resistance is less than 1.7 ohm for 120 milliseconds.



Action Taken When the DTC Sets



* The SDM requests the instrument cluster to illuminate the AIR BAG indicator.



* The SDM will store a DTC, however if an event occurs the system will still attempt deployments.



Conditions for Clearing the DTC



* The condition for setting the DTC no longer exists.



* A history DTC will clear once 100 malfunction-free ignition cycles have occurred.



Diagnostic Aid



Note: The following diagnostic aids apply for both current and history DTCs.