AUTOMATIC TRANSMISSION SYSTEM(for 1KD-FTV), Diagnostic DTC:P2772

DTC Code DTC Name
P2772 Four Wheel Drive (4WD) Low Switch Circuit Range / Performance

DESCRIPTION

The TCM detects the signal from the transfer L4 position switch.

This DTC indicates that the transfer L4 position switch remains on.

DTC Code DTC Detection Condition Trouble Area
P2772

Transfer L4 position switch remains on while the vehicle is being driven under the following conditions for 1.8 sec. or more (1-trip detection logic):

(a) Output shaft speed is between 1000 and 3000 rpm.

(b) Transfer is in H4.

  • Short in transfer L4 position switch circuit

  • Transfer system

  • TCM

MONITOR DESCRIPTION

The TCM monitors the transfer-case L4 position switch to determine when the transfer-case L4 gears are engaged. If the L4 position switch indicates that the transfer-case L4 gears are engaged under the following conditions, the TCM will conclude that there is a malfunction of the L4 position switch, illuminate the MIL and store the DTC:


WIRING DIAGRAM

B001EDZE19
*1 Four Wheel Drive Control ECU

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (FOUR WHEEL DRIVE CONTROL ECU - BODY GROUND)


    1. B001GZVE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Four Wheel Drive Control ECU)

      Disconnect the G53 four wheel drive control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G53-21 (L4) - Body ground Always 10 kΩ or higher

    OK

    GO TO TRANSFER SYSTEM Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (FOUR WHEEL DRIVE CONTROL ECU - TCM)


    1. B001FIEE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to TCM)

      Disconnect the G71 TCM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G71-15 (L4) - Body ground Always 10 kΩ or higher

    OK

    REPLACE TCM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR