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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 250 (Automatic Transmission - 6L50/6L80/6L90 - DTC P0218 To DTC P0971) >> DTC P0218 >> Circuit/System Verification

Circuit/System Verification

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  1. Review the Failure Records when the DTC set.
    • If the engine coolant temperature (ECT) was above 125°C (257°F) when the DTC set, refer to Engine Overheating and correct that concern first.
  2. Perform the Transmission Fluid Check to verify correct fluid level and condition.
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