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Home >> GMC >> 2011 >> Yukon Base, 5.3 3 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Hybrid/EV Cooling System) >> Diagnostic Information and Procedures >> Hybrid Cooling System Overheating (Electrical) >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON, command the DMCM Coolant Pump ON and OFF with a scan tool.
  2. Observe the operation of DMCM coolant pumps.
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