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Home >> Buick >> 2003 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0403: EGR Solenoid Control Circuit >> Diagnostic Procedures

Diagnostic Procedures

Fig 1: DTC P0403: Exhaust Gas Recirculation Solenoid Control Circuit (Steps 1-3)
G00250394Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0403: Exhaust Gas Recirculation Solenoid Control Circuit (Steps 4-15)
G00250395Courtesy of GENERAL MOTORS CORP.
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