SIR Diagnostic System Check: Notes
CAUTION:
If the vehicle interior has been exposed to extensive water intrusion such as water leaks, driving through high water, flooding, or other causes, the sensing and diagnostic module (SDM) and SDM connector may need to be replaced. With ignition OFF, inspect the area around the SDM, including the carpet. If any significant soaking or evidence of previous soaking is detected, the water must be removed, water damage repaired, and the SDM and the SDM connector must be replaced. Before attempting any of these repairs, the supplemental inflatable restraints (SIR) must be disabled. Refer to "DISABLING THE SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) " and "SENSING AND DIAGNOSTIC MODULE (SDM) " for instructions on how to disable the SIR and replace the SDM.
The SIR Diagnostic System Check must always be the starting point for any SIR diagnosis. The Diagnostic System Check reveals diagnostic trouble codes (DTCs) through the use of scan tool. The diagnostic procedures used in this article are designed to find any repair SIR conditions. To get the best results, it is important to use the diagnostic charts and follow the sequence listed below.
- Perform the SIR Diagnostic System Check, which reveal diagnostic trouble codes (DTCs) through the use of scan tool. It also checks for proper airbag indicator operation.
- Refer to the proper diagnostic chart as directed by SIR Diagnostic System Check. Bypassing these procedures may result in extended diagnostic time, incorrect diagnosis, and incorrect parts replacement.
- Repeat the SIR Diagnostic System Check after any repair or diagnostic procedures have been performed to ensure that the repair has been made correctly and that no other malfunction exists.