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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> DTC P0703 >> Circuit/System Testing

Circuit/System Testing

IMPORTANT: This DTC may be stored as a history DTC without affecting the operation of the ECM/PCM. If stored only as a history DTC, do not replace the BCM or ECM/PCM.
  1. Repair any brake system related DTCs before performing this diagnostic.
  2. Road test the vehicle. Verify that DTC P0572 or P0573 are not set as current.
  3. Verify that DTC P0703 is not set.
    • If DTC P0703 is set as current, replace the BCM. Clear the DTC and road test the vehicle. If DTC P0703 resets as current, replace the ECM/PCM.
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