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P0501, P2159 VEHICLE SPEED SENSOR EC-401 < DTC/CIRCUIT DIAGNOSIS > [MR FOR NISMO RS MODELS] C D E F G H I J K L M A EC N P O P0501, P2159 VEHICLE SPEED SENSOR Description INFOID:0000000012197936 ECM receives a rear wheel sensor signal from ABS actuator and electric unit (control unit) via CAN communi- cation to switch combustion for the direct injection gasoline system. For the direct injection gasoline system, refer to EC-51, "DIRECT INJECTION GASOLINE SYSTEM : System Description" DTC Logic INFOID:0000000012197937 DTC DETECTION LOGIC NOTE: If DTC P0501 or P2159 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test. 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON. 3. Turn ignition switch OFF and wait at least 10 seconds. TEST CONDITION: Before performing the following procedure, confirm that battery voltage is more than 9 V at idle. >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE 1. Start engine and let it idle for at least 5 seconds. 2. Check 1st trip DTC. YES >> Proceed to . NO >> INSPECTION END Diagnosis Procedure INFOID:0000000012197938 1. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) With CONSULT Check DTC with ABS actuator and electric unit (control unit). Refer to . Is the inspection result normal? YES >> INSPECTION END NO >> Perform Diagnosis Procedure corresponding to DTC indicated. DTC No. Trouble diagnosis (Trouble diagnosis content) DTC detecting condition Possible cause P0501 VEHICLE SPEED SEN A ECM detects a rear LH wheel sensor mal- • Harness or connectors (The CAN communication line is open • Rear LH wheel sensor unit) P2159 Vehicle speed sensor B ECM detects a rear RH wheel sensor mal- • Harness or connectors (The CAN communication line is open • Rear RH wheel sensor unit) |