Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Saturn >> 2002 >> L100 >> Repair and Diagnosis >> External Pages >> Different car >> Section 75 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P1640: Control Module Output Circuit >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2003 Saturn LW200 and 2003 Saturn L200. However, it is still accessible from the selected car via links, so may be relevant.

A condition with the charging system may cause this DTC to set. Refer to DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS  under SELF-DIAGNOSTIC SYSTEM. For an intermittent condition, refer to INTERMITTENTS in TROUBLE SHOOTING - NO CODES - 2.2L SATURN "L" SERIES article.

scientia non olet · About Mike's Workshop Manuals