AUTOMATIC TRANSMISSION SYSTEM (for 1KD-FTV), Diagnostic DTC:P0818

DTC Code DTC Name
P0818 Driveline Disconnect Switch Input Circuit

DESCRIPTION

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

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

DTC Code DTC Detection Condition Trouble Area
P0818

Transfer neutral position switch remains on while the vehicle is being driver under the following conditions for 30 sec. (2 trip detection logic):


  • Vehicle speed is 25 km/h (16 mph) or more.

  • Transfer shift lever is on H.

  • Short in transfer neutral position switch circuit

  • No. 2 transfer indicator switch

  • TCM

MONITOR DESCRIPTION

The TCM detects whether or not the transfer shift lever is in neutral by monitoring the signal from the transfer neutral position switch.

If the TCM detects that the transfer shift lever is in neutral under all of the following conditions, the TCM will conclude that there is a malfunction of the transfer neutral position switch:


Then the TCM will illuminate the MIL and store the DTC.

WIRING DIAGRAM

A01DW7YE26

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (NO. 2 TRANSFER INDICATOR SWITCH - BODY GROUND)


    1. A01E304E07

      Disconnect the T5 transfer indicator switch connector.

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

      Standard Resistance
      Transfer Connection Condition Specified Condition
      T5-2 - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT NO. 2 TRANSFER INDICATOR SWITCH (TRANSFER NEUTRAL POSITION SWITCH)


    1. A01DXQZE04

      Remove the transfer indicator switch.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 - 2 Not pushed 10 kΩ or higher
      1 - 2 Pushed Below 1 Ω

    NG

    REPLACE NO. 2 TRANSFER INDICATOR SWITCH (TRANSFER NEUTRAL POSITION SWITCH)

    OK

  3. CHECK HARNESS AND CONNECTOR (NO. 2 TRANSFER INDICATOR SWITCH - TCM)


    1. A01DXVFE07

      Disconnect the T5 transfer indicator switch connector.

    2. Disconnect the T37 TCM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T5-1 - T37-16 (TFN) Always Below 1 Ω
      T37-16 (TFN) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE TCM