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Home › Oldsmobile › 2003 › Aurora › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics › Diagnostic Tests › DTC P1634: Improper Ignition 1 Input › Diagnostic Procedures

Diagnostic Procedures

Fig 1: DTC P1634: Improper Ignition 1 Input (Steps 1-6)
G00248748Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P1634: Improper Ignition 1 Input (Steps 7-15)
G00248749Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P1634: Improper Ignition 1 Input (Steps 16-22)
G00248750Courtesy of GENERAL MOTORS CORP.
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