• | 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. |
When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform turn-on test to diag-nose critical malfunctions within SDM itself.
Ignition voltage is between 9-16 volts.
The SDM does not implement diagnostic operation. In case of above, the wiring harness of SDM should be checked before replacing the SDM.
• | The SDM commands ON the AIR BAG warning lamp via serial data communications. |
• | The SDM disables all deployments. |
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
This DTC is an indication that an incorrect SDM is installed in the vehicle, or that the SDM and/or the BCM was replaced without reprogramming the BCM with the new information.
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 B1000 was current replace the SDM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDM replacement, setup, and programming