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Home >> GMC >> 2011 >> Yukon Base, 5.3 3 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Automatic Transmission - 2ML70 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0218 >> Circuit/System Verification

Circuit/System Verification

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  1. Verify that P0711, P0712, or P0713 is not set.
  2. Ignition ON, observe the scan tool ECM engine coolant temperature (ECT) parameter in the freeze frame data. The reading should be below 125°C (257°F).
  3. Ignition ON, observe the scan tool Trans. Fluid Temp. parameter in the freeze frame data. The reading should be below 135°C (275°F).
  4. If neither the engine nor the transmission had an over temperature condition when the DTC set, replace the Q8 control solenoid valve assembly.