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Home >> Nissan-Datsun >> 2012 >> Frontier SL, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Transfer Case) >> Ecu Diagnosis Information >> Transfer Control Unit >> DTC Index >> DTC Chart

DTC Chart

WARNING: This page is about a different variant/trim than selected.
DTC CONSULT Diagnostic item is detected when... Reference
[P1801 ] *INITIAL START* Due to removal of battery which cuts off power supply to transfer control unit, self-diagnosis memory function is suspended. DTC/CIRCUIT DIAGNOSIS 
[P1802 ] CONTROL UNIT (1, 2, 3) Malfunction is detected in the memory (RAM) system of transfer control unit. P1802 - P1804, P1809 TRANSFER CONTROL UNIT 
[P1803] Malfunction is detected in the memory (ROM) system of transfer control unit.
[P1804] Malfunction is detected in the memory (EEPROM) system of transfer control unit.
[P1807 ] VHCL SPEED SEN.AT
  • Malfunction is detected in output shaft revolution signal that is output from TCM through CAN communication.
  • Improper signal is input while driving.
P1807 VEHICLE SPEED SENSOR (A/T) 
[P1808 ] VHCL SPEED SEN.ABS
  • Malfunction is detected in vehicle speed signal that is output from ABS actuator and electric unit (control unit) through CAN communication.
  • Improper signal is input while driving.
P1808 VEHICLE SPEED SENSOR (ABS) 
[P1809 ] CONTROL UNIT 4 AD converter system of transfer control unit is malfunctioning. P1802 - P1804, P1809 TRANSFER CONTROL UNIT 
[P1810 ] 4L POSI SW TF Improper signal from 4LO switch is input due to open or short circuit. P1810 4 LO SWITCH 
[P1811 ] BATTERY VOLTAGE Power supply voltage for transfer control unit is abnormally low while driving. DTC/CIRCUIT DIAGNOSIS 
[P1813 ] 4WD MODE SW More than two switch inputs are simultaneously detected due to short circuit of 4WD shift switch. P1813 4WD SHIFT SWITCH 
[P1814 ] 4WD DETECT SWITCH Improper signal from wait detection switch is input due to open or short circuit. P1814 WAIT DETECTION SWITCH 
[P1816 ] PNP SW/CIRC When transmission range switch (A/T models) signal is malfunctioning. P1816 PNP SWITCH (A/T) 
When PNP switch (M/T models) signal is malfunctioning. P1816 PNP SWITCH (M/T) 
[P1817 ] SHIFT ACTUATOR
  • Motor does not operate properly due to open or short circuit in actuator motor.
  • Malfunction is detected in the actuator motor. (When 4WD shift switch is operated and actuator motor is not operated)
  • Malfunction is detected in transfer shift high relay or transfer shift low relay.
P1817 ACTUATOR MOTOR 
[P1818 ] SHIFT ACT POSI SW
  • Improper signal from actuator position switch is input due to open or short circuit.
  • Malfunction is detected in actuator position switch.
P1818 ACTUATOR POSITION SWITCH 
[P1819 ] SHIFT ACT CIR
  • Malfunction is detected in transfer shut off relay 1 and transfer shut off relay 2.
  • Malfunction occurs in transfer control device drive circuit.
P1819 TRANSFER CONTROL DEVICE 
[P1820 ] ENGINE SPEED SIG
  • Malfunction is detected in engine speed signal that is output from ECM through CAN communication.
  • Improper signal is input while driving.
P1820 ENGINE SPEED SIGNAL 
[U1010 ] CONTROL UNIT (CAN) Detecting error during the initial diagnosis of CAN controller of transfer control unit. U1010 CONTROL UNIT (CAN) 
NOTE: If "SHIFT ACT POSI SW [P1818]" or "SHIFT ACT CIR [P1819]" is displayed, first erase self-diagnostic results. ("SHIFT ACT POSI SW [P1818]" or "SHIFT ACT CIR [P1819]" may be displayed after installing transfer control unit or transfer assembly.)