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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 834 (Transfer Case) >> ATX14B >> Trouble Diagnosis >> CONSULT-II Function (ALL MODE AWD/4WD) >> Self-Diag Result Mode >> Display Item DTC List

Display Item DTC List

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
TRANSFER CASE AX14B DTC's

DTC Diagnostic item is detected when... Check item
CONTROL UNIT 1 [P1802] Malfunction is detected in the memory (RAM) system of transfer control unit. "TRANSFER CONTROL UNIT "
CONTROL UNIT 2 [P1803] Malfunction is detected in the memory (ROM) system of transfer control unit. "TRANSFER CONTROL UNIT "
CONTROL UNIT 3 [P1804] Malfunction is detected in the memory (EEPROM) system of transfer control unit. "TRANSFER CONTROL UNIT "
VHCL SPEED SEN.AT [P1807]
  • Malfunction is detected in output shaft revolution signal that is output from TCM through CAN communication.
  • Improper signal is input while driving.
 "OUTPUT SHAFT REVOLUTION SIGNAL (TCM) "
VHCL SPEED SEN.ABS [P1808]
  • 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.
 "VEHICLE SPEED SENSOR (ABS) "
CONTROL UNIT 4 [P1809] AD converter system of transfer control unit is malfunctioning. "TRANSFER CONTROL UNIT "
4L POSI SW TF [P1810] Improper signal from neutral-4LO switch is input due to open or short circuit. "NEUTRAL-4LO SWITCH "
BATTERY VOLTAGE [P1811] Power supply voltage for transfer control unit is abnormally low while driving. "POWER SUPPLY CIRCUIT FOR TRANSFER CONTROL UNIT "
4WD MODE SW [P1813] More than two switch inputs are simultaneously detected due to short circuit of 4WD shift switch. "4WD SHIFT SWITCH "
4WD DETECT SWITCH [P1814] Improper signal from wait detection switch is input due to open or short circuit. "WAIT DETECTION SWITCH "
PNP SW/CIRC [P1816] When A/T PNP switch signal is malfunction or communication error between the control units. "PNP SWITCH SIGNAL (TCM) "
SHIFT ACTUATOR [P1817]
  • 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 and transfer shift low relay.
 "ACTUATOR MOTOR "
SHIFT ACT POSI SW [P1818]
  • Improper signal from actuator position switch is input due to open or short circuit.
  • Malfunction is detected in the actuator position switch.
 "ACTUATOR POSITION SWITCH "
SHIFT ACT CIR [P1819]
  • Transfer control device actuator circuit is shorted or open. (Malfunctions are detected when transfer shift relay circuit is open/ shorted or relay monitor circuit is open/shorted.)
  • Malfunction occurs in transfer control device drive circuit.
  • Malfunction is detected in transfer shut off relay.
 "TRANSFER CONTROL DEVICE "
Malfunction is detected in transfer shut off relay. "POWER SUPPLY CIRCUIT FOR TRANSFER CONTROL UNIT "
ENGINE SPEED SIG [P1820]
  • Malfunction is detected in engine speed signal that is output from ECM through CAN communication.
  • Improper signal is input while driving.
 "ENGINE SPEED SIGNAL (ECM) "
DUTY SOLENOID [P1822] Proper voltage is not applied to clutch pressure solenoid valve due to open or short circuit. "CLUTCH PRESSURE SOLENOID "
2-4WD SOLENOID [P1823] Proper voltage is not applied to 2-4WD solenoid valve due to open or short circuit. "2-4WD SOLENOID "
MOTOR RELAY [P1824] Motor does not operate properly due to open or short circuit in transfer motor or transfer motor relay. "TRANSFER MOTOR "
OIL TEMP SEN [P1826] Signal voltage from transfer fluid temperature sensor is abnormally high (Transfer fluid temperature is abnormally low) while driving. "TRANSFER FLUID TEMPERATURE "
CLUTCH PRES SW [P1827]
  • Improper signal from clutch pressure switch is input due to open or short circuit.
  • Malfunction occurs in clutch pressure switch or hydraulic circuit.
 "CLUTCH PRESSURE SWITCH "
LINE PRES SW [P1828]
  • Improper signal from line pressure switch is input due to open or short circuit.
  • Malfunction occurs in line pressure switch or hydraulic circuit.
 "LINE PRESSURE SWITCH "
THROTTLE POSI SEN [P1829]
  • Malfunction is detected in accelerator pedal position signal that is output from ECM through CAN communication.
  • Signal voltage from accelerator pedal position sensor is abnormally high or low.
 "THROTTLE POSITION SIGNAL (ECM) "
ABS OP SIG [P1830] Malfunction is detected in ABS operation signal that is output from ABS actuator and electric unit (control unit) through CAN communication. "ABS OPERATION SIGNAL (ABS) "
VDC OP SIG [P1831] Malfunction is detected in VDC operation signal that is output from ABS actuator and electric unit (control unit) through CAN communication. "VDC OPERATION SIGNAL (ABS) "
TCS OP SIG [P1832] Malfunction is detected in TCS operation signal that is output from ABS actuator and electric unit (control unit) through CAN communication. "TCS OPERATION SIGNAL (ABS) "
CAN COMM CIRCUIT [U1000] Malfunction has been detected from CAN communication line. "CAN COMMUNICATION LINE "
NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED. No NG item has been detected. -
CAUTION:
  • If "CAN COMM CIRCUIT [U1000]" is displayed with other DTCs, first perform the trouble diagnosis for CAN communication line.
  • If "ABS OP SIG [P1830]", "VDC OP SIG [P1831]" or "TCS OP SIG [P1832]" is displayed, first perform the trouble diagnosis for ABS system.
  • If "VHCL SPEED SEN.AT [P1807]" is displayed, first perform the trouble diagnosis for A/T system.
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.)
  • If "CL PRES SW [P1827]" or "LINE PRES SW [P1828]" is displayed only while driving in reverse, check the continuity of "R" position on A/T PNP switch. When there is nothing wrong with the electrical system, check the hydraulic system.
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