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Home >> Suzuki >> 2012 >> Equator Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Transfer (4WD) System) >> Diagnostic Information and Procedures >> DTC Index: Transfer Control Unit >> DTC Chart

DTC Chart

WARNING: This page is about a different variant/trim than selected.
DTC CHART

DTC SDT 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. P1801, P1811 Power Supply Circuit for Transfer Control Unit 
[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. P1801, P1811 Power Supply Circuit for Transfer Control Unit 
[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 PNP switch signal is malfunctioning. P1816 PNP Switch (A/T)  (A/T models), P1816 PNP Switch (M/T)  (M/T models)
[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 DTC. ("SHIFT ACT POSI SW [P1818]" or "SHIFT ACT CIR [P1819]" may be displayed after installing transfer control unit or transfer assembly.)