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DLN-104 < ECU DIAGNOSIS > [TRANSFER: ATX14B] TRANSFER CONTROL UNIT 9 Transfer fluid tempera- Signal voltage from transfer fluid temperature sensor is ab- Refer to 10 Neutral-4LO switch Improper signal from neutral-4LO switch is input due to Refer to 11 Clutch pressure switch • Improper signal is input due to open or short circuit. circuit. Refer to 12 Line pressure switch • Improper signal is input due to open or short circuit. circuit. Refer to 13 Engine speed signal • Malfunction is detected in engine speed signal that is out- put from ECM through CAN communication. • Improper signal is input while driving. 14 Accelerator pedal posi- • Malfunction is detected in accelerator pedal position sig- nal that is output from ECM through CAN communication. • Signal voltage from accelerator pedal position sensor is abnormally high or low. 15 Power supply Power supply voltage for transfer control unit is abnormally Refer to 16 4WD shift switch More than two switch inputs are simultaneously detected Refer to 17 ABS operation signal Malfunction is detected in ABS operation signal that is out- 18 Wait detection switch Improper signal from wait detection switch is input due to Refer to 19 Actuator motor • Motor does not operate properly due to open or short cir- cuit in actuator motor. • Malfunction is detected in the actuator motor. (When 4WD shift switch is operated and actuator motor is not • Malfunction is detected in transfer shift high relay and transfer shift low relay. Refer to 20 Actuator position • Improper signal from actuator position switch is input due to open or short circuit. • Malfunction is detected in the actuator position switch. 21 Actuator circuit • Transfer control device actuator circuit is shorted or open. (Malfunctions are detected when motor relay circuit is • Malfunction occurs in transfer control device drive circuit. Refer to 22 VDC operation signal Malfunction is detected in VDC operation signal that is out- 23 TCS operation signal Malfunction is detected in TCS operation signal that is out- 24 PNP switch signal When A/T PNP switch signal is malfunction or communica- Repeats flickering — System normal. — Repeats flickering Data erase display • Power supply failure of memory back-up. Refer to No flickering PNP switch or 4WD PNP switch or 4WD shift switch circuit is shorted or open. Refer to . Flashing pattern Item Diagnostic item is detected when... Reference |