AUTOMATIC TRANSMISSION ON-BOARD DIAGNOSTIC FUNCTION [SJ6A-EL]

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Reading DTCs Procedure

1. Connect the M-MDS to the DLC-2.

L.H.D.

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R.H.D.

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2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

• When using the IDS (laptop PC)

  1. Select "Self Test".
  2. Select "Modules".
  3. Select "TCM".

• When using the PDS (Pocket PC)

  1. Select "Module Tests".
  2. Select "TCM".
  3. Select "Self Test".

  Note
  • Freeze frame data appears at the top of the help screen when the displayed DTC is selected.
  • The freeze frame data consists of data for vehicle and transmission control system operation conditions when malfunctions in the transmission control system are detected and stored in the TCM.
  • There are modes 2 and 12 in the freeze frame data.
  Freeze frame data (mode 2)
    ― Freeze frame data is stored at the instant the malfunction indicator lamp illuminates, and only a part of the DTC data is stored.
    ― For the freeze frame data, if there are several malfunctions in the engine control system, the data for the malfunction which occurred initially is stored. Thereafter, if a misfire or fuel injection control malfunction occurs, data from the misfire or fuel injection control malfunction is written over the initially stored data. However, if the initially stored freeze frame data is a misfire or fuel injection control malfunction, it is not overwritten.
  Freeze frame data (mode 12)
    ― The data for DTCs currently detected is stored.
    ― The DTC recording timing differs depending on the number of DTC drive cycles.
      • For a DTC with a drive cycle number 1, only the malfunction determination data is recorded.
      • For a DTC with a drive cycle number 2, both the malfunction determination and undetermined data is recorded.

3. Verify the DTC according to the directions on the M-MDS screen.

Freeze frame data table (mode2, mode12) table

  Note
  • Refer to PID monitor table for confirm the engine control system operation status while the PCM does not store the DTC.
  • Freeze frame data items are not displayed, according to detected DTC.

Freeze frame data item | Definition | Unit | Corresponding PID data monitor item | Description
--- | --- | --- | --- | ---
LOAD | Engine load | % | — | Ratio of current intake air amount to wide-open throttle engine operation intake air amount
ECT | Engine coolant temperature | °C | ECT TCM | Engine coolant temperature
RPM | Engine speed | Rpm | RPM TCM | Engine speed
VS | Vehicle speed | KPH | VSS | Vehicle speed input from ABS/DSC HU/CM
TP | Throttle valve position No.1 | % | THOP | TP sensor No.1 value
RUNTM | Time from engine start | hh:mm:ss | — | Time from engine start
VPWR | Module supply voltage | V | VPWR_TCM | PCM power supply voltage

Clearing DTCs Procedure

1. Connect the M-MDS to the DLC-2.

L.H.D.

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R.H.D.

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2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

• When using the IDS (laptop PC)

  1. Select "Self Test".
  2. Select "Modules".
  3. Select "TCM".

• When using the PDS (Pocket PC)

  1. Select "Module Tests".
  2. Select "TCM".
  3. Select "Self Test".

3. Verify the DTC according to the directions on the M-MDS screen.

4. Press the clear button on the DTC screen to clear the DTC.