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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Control System & Fuel System - 3.6L - DTC P0335 To DTC P2097) >> DTC P0685, P0686, P0687, P0689, or P0690 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON, clear the DTCs with a scan tool.
  2. Turn OFF the ignition for 30 seconds.
  3. Ignition ON, observe the scan tool DTC information. DTCs P0685, P0686, P0687, P0689, or P0690 should not set.
  4. Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.
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