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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 233 (Wiring Systems (General Information)) >> Diagnostic Information and Procedures >> Terminal Position Assurance Locks

Terminal Position Assurance Locks

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The terminal position assurance (TPA) insert resembles the plastic combs used in the control module connectors. The TPA keeps the terminal securely seated in the connector body. Do not remove the TPA from the connector body unless you remove a terminal for replacement.