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Home >> Pontiac >> 2000 >> Firebird Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P1260: Fuel Pump Speed Relay Control Circuit (Grand PRIX & Regal) >> Circuit Description

Circuit Description

The Output Drive Modules (ODMs) are used by PCM to turn on many of the current-driven devices needed to control various engine and transaxle functions. Each ODM is capable of controlling up to 7 separate outputs by applying ground to device the PCM is commanding on. ODMs have the capability of diagnosing each output circuit individually. DTC will set when an improper voltage level on the fuel pump speed control PWM circuit is detected for at least 30 seconds.