Diagnostic Procedure
- If SIR diagnostic system check has been performed, go to next step. If SIR diagnostic system check has not been performed, go to SRS DIAGNOSTIC SYSTEM CHECK .
- If DTC's 19, 25, 51 or 53 are set, see Diagnostic Procedure for indicated DTC. See DIAGNOSTIC TROUBLE CODES (DTC) table. If DTC's 19, 25, 51 or 53 are not set, replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM) under REMOVAL & INSTALLATION. Go to SRS DIAGNOSTIC SYSTEM CHECK .