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7. REPLACE AND PROGRAM IMMOBILIZER CONTROL MODULE • Using the wiring schematic as a guide, inspect the related wiring and connectors of the Immobilizer control module. • Verify that there is good terminal contact in the related connectors. • Try to start the engine. • With the X-431 scan tool, view active DTCs in the Immobilizer control module. Is the warning light flashing and DTC B3055 or B3056 still present? Yes >> Replace and match the Immobilizer control module (This concern may have been caused by Immobi- lizer control module internal fault). Refer to DTC B3077 Diagnostic Procedure. No >> No problem found at this time. DIAGNOSIS & TESTING 15
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