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P0343-747 HBC-109 < COMPONENT DIAGNOSIS > D E F G H I J K L M A B HBC N O P P0343-747 Description INFOID:0000000004211763 The crankshaft position sensor sends the engine speed signal (NE) to the engine CPU of the ECM. The hybrid vehicle control ECU compares the input engine speed signals (NE) in the engine CPU and HV CPU. If DTC P0335 or P0340 is detected by ECM, this DTC will be output. DTC Logic INFOID:0000000004211764 DTC DETECTION LOGIC Diagnosis Procedure INFOID:0000000004211765 1. PRECONDITIONING • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system. • After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. • Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly. >> GO TO 2. 2. CHECK DTC OUTPUT (ENGINE) 1. Turn ignition switch ON. 2. Check DTC for “ENGINE”. YES (P0335 is detected.)>>Go to diagnosis procedure for DTC P0335. (See ). YES (P0340 is detected.)>>Go to diagnosis procedure for DTC P0340. (See ). NO >> GO TO 3. 3. CHECK ENGINE START 1. Check if the engine can start. 2. Check DTC for “ENGINE”. A or B A >> GO TO 4. B >> Go to diagnosis procedure for DTC P0335 or P0340 (See ). 4. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR) DTC No. INF code Trouble diagnosis name DTC detecting condition Possible cause P0343 747 Camshaft position sensor “A” GI pulse signal is not input for 2 sec. or • Wire harness or connector Result Proceed to The engine cannot start. B The engine can start and DTC P0335 or P0340 is output within 10 seconds. B The engine can start and DTC P0335 and P0340 are not output after 10 seconds. A |