Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using the diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptor
DTC B1651 : LH Side Air Bag Deployment CommandedCircuit/System Description
When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform turn-on test to diagnose critical malfunctions within the SDM itself.
In case of the driver side air bag inflation by side impact, the SDM maintains the warning lamp ON. The driver and passenger pretensioners, driver side module, driver side impact sensor, driver roof rail module and the SDM should be replaced. After replacement the entire system should be checked.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
The history of the air bag inflation or the belt pretensioner explosion is in the SDM.
Action Taken When the DTC Sets
The SDM commands ON the AIR BAG warning lamp.
Conditions for Clearing the DTC
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
Reference Information
Electrical Information Reference
Circuit/System Testing
- Ignition ON, use the scan tool to request SIR DTCs. Verify that DTC B1651 is set as current.
- Ignition ON, use the scan tool to clear the DTCs.
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 I/P module • The SDM module • The I/P wiring harness connector • The SDM wiring harness connector
| ⇒ | If DTC B1651 was current replace the SDM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDM replacement, setup, and programming
