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TROUBLE DIAGNOSIS CVT-49 D E F G H I J K L M A B CVT Revision; 2004 April 2003 Murano TROUBLE DIAGNOSIS PFP:00004 DTC Inspection Priority Chart ACS001SX If some DTCs are displayed at the same time, perform inspections one by one based on the following priority . Fail-Safe ACS001SY The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is an error in a FAIL-SAFE FUNCTION If any malfunction occurs in a sensor or solenoid, this function controls the CVT to make driving possible. Output Speed Sensor (Secondary Speed Sensor) ● The shift pattern is changed in accordance with throttle position when an unexpected signal is sent from Input Speed Sensor (Primary Speed Sensor) ● The shift pattern is changed in accordance with throttle position and secondary speed (vehicle speed) PNP Switch ● If an unexpected signal is sent from the PNP switch to the TCM, the transmission is put in “D” CVT Fluid Temperature Sensor ● If an unexpected signal is sent from the CVT fluid temperature sensor to the TCM, the gear ratio in use Transmission Fluid Pressure Sensor A (Secondary Pressure Sensor) ● If an unexpected signal is sent from the transmission fluid pressure sensor A (secondary pressure sensor) ● If transmission fluid pressure sensor A (secondary pressure sensor) error signal is input to TCM, second- Pressure Control Solenoid A (Line Pressure Solenoid) ● If an unexpected signal is sent from the solenoid to the TCM, the pressure control solenoid A (line pres- Pressure Control Solenoid B (Secondary Pressure Solenoid) ● If an unexpected signal is sent from the solenoid to the TCM, the pressure control solenoid B (secondary Torque Converter Clutch Solenoid ● If an unexpected signal is sent from the solenoid to the TCM, the torque converter clutch solenoid is Step Motor ● If an unexpected signal is sent from the step motor to the TCM, the step motor coil phases “A” through “D” Priority Detected items (DTC) 1 U1000 CAN communication line 2 Except above |