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P1421 COLD START CONTROL EC-1021 < DTC/CIRCUIT DIAGNOSIS > [VK50VE] C D E F G H I J K L M A EC N P O • Crushed intake air passage YES >> GO TO 3. NO >> Repair or replace malfunctioning part 3. CHECK FUEL INJECTION SYSTEM FUNCTION Perform DTC Confirmation Procedure for DTC P0171, P0174. Refer to . Is the inspection result normal? YES >> GO TO 4. NO >> Go to for DTC P0171, P0174. 4. PERFORM DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON. 2. Erase DTC. 3. Perform DTC Confirmation Procedure. . Is the 1st trip DTC P1421 displayed again? YES >> GO TO 5. NO >> INSPECTION END 5. REPLACE ECM 1. Replace ECM. 2. EC-579, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (ECM) : Special Repair . >> INSPECTION END |