TRANSFER SYSTEM, Diagnostic DTC:P279E

DTC Code DTC Name
P279E Four Wheel Drive (4WD) Range Signal Circuit Range / Performance

DESCRIPTION

When the transfer position switch is switched, the HI terminal and LO terminal change to one of the following ON/OFF combinations listed in the table below.

Transfer Position Switch Terminal H4F Between H4F and H4L H4L Between H4L and L4L L4L
HI ON OFF ON OFF OFF
LO OFF OFF ON OFF ON

This DTC is detected if the transfer position switch HI terminal and LO terminal signals are simultaneously received.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P163B

  1. Ignition switch turned to ON

  2. The ON/OFF combination of the HI terminal and LO terminal does not match the pattern

  3. 60 seconds or more

  4. 1 trip detection logic

  • Wire harness and connector

  • 4 wheel drive control ECU

  • Transfer position switch

WIRING DIAGRAM

B001EPTE12
*a Transfer Position Switch
*b 4 Wheel Drive Control ECU

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER POSITION SWITCH)


    1. Disconnect the G53 4 wheel drive control ECU connector.

    2. Disconnect the G18 transfer position switch connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      G53-14 (2-4) - G18-5 (HI) Always Below 1 Ω
      G53-13 (LO) - G18-2 (LO) Always Below 1 Ω
      G18-4 (GND) - Body ground Always Below 1 Ω
      G53-14 (2-4) or G18-5 (HI) - Body ground Always 10 kΩ or higher
      G53-13 (LO) or G18-2 (LO) - Body ground Always 10 kΩ or higher
      G53-14 (2-4) or G18-5 (HI) - G53-13 (LO) or G18-2 (LO) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK TRANSFER POSITION SWITCH


    1. B001F6CC01
      *a

      Component with harness connected

      (Transfer Position Switch)

      Remove the transfer position switch with its connector still connected.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G18-5 (HI) - Body ground

      Ignition switch ON

      H4F position

      		 Below 1.5 V

      Ignition switch ON

      H4L position

      		 Below 1.5 V

      Ignition switch ON

      L4L position

      		 10.5 to 14 V
      G18-2 (LO) - Body ground

      Ignition switch ON

      H4F position

      		 10.5 to 14 V

      Ignition switch ON

      H4L position

      		 Below 1.5 V

      Ignition switch ON

      L4L position

      		 Below 1.5 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here

    NG

    REPLACE TRANSFER POSITION SWITCH Click here