K 1500 Truck 4WD V8-6.5L DSL Turbo VIN S (1999)
new malfunction to occur during this process.
4. When you have found all circuitry outside the SDM to operate properly, as indicated by the appropriate diagnostic table, replace the SDM.
This table assumes that the SIR Diagnostic System Check and either a symptom table or a diagnostic trouble code table diagnosis has been performed.
When all circuitry outside the SDM has been found to operate properly, as indicated by the appropriate diagnostic table, and the symptom or DTC
remains current, the following diagnostic procedures must be performed to verify the need for SDM replacement.
