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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Engine Controls And Fuel - 4.6L - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0641 or P0651 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. With the ignition ON and the engine OFF, observe the 5 V Reference 1 and 2 parameters. The scan tool should display 4.8-5.2 V for a normally operating system.
  2. Ignition ON, observe the DTC information with a scan tool. DTCs P0641 and P0651 should not set.
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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