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• Check resistance between O 2 sensor terminals. TERMINAL NO. RESISTANCE 1 & 3 and 1 & 4 ⬁ ⍀ (Continuity should not exist) 4 & 1 and 4 & 2 Is the check result normal? Yes >> Go to the next step. No >> Replace O 2 sensor. 7. CHECK DTC • With the X-431 scan tool, read ECM DTCs. • Refer to ⬙DTC Confirmation Procedure⬙. Is DTC P0032 still present? Yes >> Replace the ECM. NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal- lation in Section 03 Electronic Engine Controls). No >> The system is now operating properly. DIAGNOSIS & TESTING 03
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