Diagnosis & Repair Procedure
WARNING: This page is about a different car, the 2002 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
Perform DTC CONFIRMATION TEST . If DTC P0601 is set, replace ECM (PCM) and go to DTC CONFIRMATION TEST . If DTC P0601 is not set, problem is intermittent. System is okay at this time. See INTERMITTENTS TROUBLE SHOOTING - NO CODES article.