Wednesday, May 12, 2021

2010 Cadillac CTS Sedan AWD V6-3.6L Page 142

2010 Cadillac CTS Sedan AWD V6-3.6L Page 142



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



* SIR/SRS Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/SIR/SRS Wiring Repairs)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming



B0058



DTC B0056-B0058



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 B0056 00



- Passenger Frontal Airbag Suppressed



DTC B0057 00



- Passenger Side Airbag Suppressed



DTC B0058 00



- Passenger Pretensioner Suppressed



Circuit/System Description



When the ignition is turned ON, the passenger presence system (PPS) and the inflatable restraint sensing and diagnostic module (SDM) performs



tests to diagnose critical malfunctions within itself. The PPS is used to monitor the weight of an occupant in the front passenger seat. If the pressure



from the occupant's weight is less than a specified value or an empty seat is detected, the PPS module will send a suppress signal to the SDM to



disable the instrument panel (I/P) module. When the PPS detects a fault within itself, then the PPS will communicate to the SDM through serial



data communications that a PPS fault is present. The SDM will disable the deployment of the module and then turn the AIR BAG indicator ON.



Conditions for Running the DTC



Ignition voltage is between 9-16 volts.



Conditions for Setting the DTC



This DTC is set when the SDM has commanded an air bag deployment while the PPS has determined that the front passenger seat has one the



following conditions:



* The pressure from the occupants weight is less than a specified value. The PPS module sent a disable signal to the SDM to disable the I/P



module.



* Empty front passenger seat



* A PPS fault was detected



Action Taken When the DTC Sets



* DTC B0056 and B0058 will only set if there is a child seated or the passenger seat is empty.



* DTC B0052, B0053, or B0055 will set along with this DTC.



* The SDM commands the AIR BAG indicator ON.



Conditions for Clearing the DTC



Any of the codes will set along with one of the following latched codes: DTC B0052, B0053, or B0055 and cannot be cleared.



Reference Information



Schematic Reference



SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views)

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