B0058

DTC B0056-B0058

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* 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 suppress the deployment of the module and then turn the AIR BAG indicator ON.

DTC B0056 set because the PPS commanded to suppress the I/P inflator module when the vehicle was involved in a collision and the SDM has commanded an air bag deployment.

DTC B0057 set because the PPS commanded to suppress the side impact module when the vehicle was involved in a collision and the SDM has commanded an air bag deployment.

DTC B0058 set because the PPS commanded to suppress the seat belt pretensioner when the vehicle was involved in a collision and the SDM has commanded an air bag deployment.

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 occupant's weight is less than a specified value. The PPS module sent a suppress signal to the SDM to suppress 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 a 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.

Circuit/System Verification

1. Ignition OFF, verify that the vehicle does not show any signs of inflator module or pretensioner deployment.

• If the vehicle displays any signs of inflator deployment, refer to Repairs and Inspections Required After a Collision.

2. Verify DTC B0052, B0053, or B0055 is not set.

• If DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. Diagnostic Trouble Code Descriptions

3. Clear DTCs. Verify DTC B0056, B0057, or B0058 is not set.

• If DTC is set, replace the SDM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

* SIR/SRS Wiring Repairs