B0098
DTC B0098
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptor
DTC B0098
- Passenger Presence Module Configuration Error
Diagnostic Fault Information
Circuit/System Description
When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. When the SDM has completed the power-up mode, the SDM will establish communication with the passenger presence system (PPS). The PPS will respond by illuminating both the PASSENGER AIR BAG ON/OFF indicators ON for 5 seconds. The SDM will transmit a request message to the PPS module to receive the PPS verification ID. The PPS module will transmit the verification ID to the SDM and the SDM will compare the ID received to data stored in memory. If the data stored in memory does not match the information transmitted by the PPS module, the SDM will set DTC B0098 and command the AIR BAG indicator ON. The PPS will set DTC 064 and request the SDM to disable the passenger instrument panel air bag deployment loop.
Conditions for Running the DTC
Ignition 1 voltage is within the normal operating voltage range.
Conditions for Setting the DTC
* The PPS module has a current fault.
* The PPS module fault counter in the SDM has reached 127 counts.
Action Taken When the DTC Sets
* The SDM disables the passenger instrument panel air bag deployment loop.
* The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.
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 Aids
Important: DTC B0098 will also set if the PPS module has a current malfunction and has set DTC 064. The SDM will set DTC B0098 as current and illuminate the AIR BAG indicator. This is done to notify the driver of any PPS malfunctions. When DTC B0098 is present it is important to check the PPS module for any current DTCs. Refer to Passenger Presence System Flash Code Procedures Component Tests and General Diagnostics. If the PPS module has any current DTCs, address these before performing this DTC chart.
DTC B0098 is an indication that the SDM has received an incorrect PPS verification ID. The SDM will continue to request the verification ID from the PPS module for 5 seconds. If the SDM does not receive the correct verification ID from the PPS module within 5 seconds, the SDM will set DTC B0098 as current, illuminate the AIR BAG indicator, and disable the passenger instrument panel air bag deployment loop. If either the SDM or PPS module were replaced, make sure the correct part numbers were used for the vehicle application.
Reference Information
Schematic Reference
SIR Schematics [1][2]Air Bag Systems
Connector End View Reference
Component Connector End Views Connector End Views By Name
Description and Operation
SIR System Description and Operation Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Control Module References for scan tool information.
Circuit/System Testing
Important: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
* PPS module
* SDM
* PPS module wiring harness connector
* SDM wiring harness connector
1. Check to see if the PPS module was replaced. Verify the correct PPS module was installed.
• If the wrong PPS module was installed, replace with the correct PPS module.
2. Check to see if the SDM was replaced. Verify the correct SDM was installed.
• If the wrong SDM was installed, replace with the correct SDM.
3. Check to see if DTC B1001 is set. Verify DTC B1001 is not set.
• If DTC B1001 is current, refer to DTC B1001 Supplemental Inflatable Restraints.
4. Replace the PPS module. Ignition ON, use the scan tool to clear the DTCs then recheck for DTC B0098. Verify DTC B0098 does not set.
• If DTC B0098 resets then replace the SDM.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
Control Module References Control Module References for PPS module or SDM replacement, setup, and programming