B0098
DTC B0098
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle prior to using the 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 B0098 52
- Manual Cutoff Switch Circuit Compare Failure
Diagnostic Fault Information
Circuit/System Description
The inflatable restraint I/P module disable switch is ignition key operated to manually enable or disable the inflatable restraint I/P module. When the ignition is turned ON, ignition 1 voltage is supplied to the inflatable restraint I/P module disable switch and based on the position of the switch either the I/P module disable switch signal circuit (ON) or the I/P module suppression indicator control (OFF) circuit will be active to the inflatable restraint sensing and diagnostic module (SDM). The SDM will communicate to the instrument panel cluster (IPC) to illuminate the appropriate the ON/OFF indicator as well as enable or disable the deployment of the I/P module. If a malfunction is detected, a DTC will be stored.
Conditions for Running the DTC
Ignition 1 voltage is between 9-16 volts.
Conditions for Setting the DTC
The SDM detects both the I/P module disable switch signal circuit (ON) and the I/P module suppression indicator control (OFF) circuit active or inactive for 500 milliseconds.
Action Taken When the DTC Sets
The SDM commands the AIRBAG indicator ON.
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.
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.
* The inflatable restraint I/P module disable switch
* The SDM
* The inflatable restraint I/P module wiring harness connector
* The SDM wiring harness connector
Ignition OFF, disconnect the harness connector at the inflatable restraint I/P module disable switch.
1. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal B and ground.
• If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance, if the circuit tests normal and the ignition fuse is open, test or replace the inflatable restraint I/P module disable switch.
2. Verify that a test lamp illuminates between the I/P module disable switch signal control circuit terminal E and B+.
• If the test lamp does not illuminate, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the SDM.
3. Verify that a test lamp illuminates between the I/P module suppression indicator control (OFF) circuit terminal A and B+.
4. If all circuits test normal, test or replace the inflatable restraint I/P module disable switch.
Component Testing
1. Ignition OFF, disconnect the harness connector at the inflatable restraint I/P module disable switch.
2. Test for infinite resistance between the signal circuit terminal A and the signal circuit terminal E.
• If not the specified value, inflatable restraint I/P module disable switch.
3. With the inflatable restraint I/P module disable switch select the OFF position.
4. Test for 90-110 ohms between the ignition circuit terminal B and signal circuit terminal E.
• If not the specified range, replace the inflatable restraint I/P module disable switch.
5. With the inflatable restraint I/P module disable switch select the ON position.
6. Test 3.9K-3.2K ohms between the ignition circuit terminal B and signal circuit terminal A.
• If not the specified range, replace the inflatable restraint I/P module disable switch.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests
* SIR/SRS Wiring Repairs
* Inflatable Restraint Instrument Panel Module Disable Switch Replacement