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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Control System & Fuel System - 3.6L - DTC P0442 To P1551) >> 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 DTC information with a scan tool.
  4. View the DTC information with a scan tool. DTCs P0685, P0686, P0687, P0689, or P0690 should not set.
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