Action for Non-repeatable Malfunction
- If the malfunction does not recur, verify the malfunction cause by performing the following actions: Verify that no DTCs are stored. (See «ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL]»(ref-579376-S25255133932013100700000) .) Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data at that time, and detect the malfunction cause.
- If the malfunction does not recur after the above servicing, explain to the customer that the vehicle is normal.
Scheme 1724
- Connect the M-MDS (IDS) to the DLC-2. (Scheme 1724): Identifying Data Link Connector (DLC-2)
- After the vehicle is identified, select the following items from the initialization screen of the IDS. Select "Self Test". Select "Modules". Select "TCM". NOTE: Freeze frame data/snapshot data appears at the top of the help screen when the displayed DTC is selected. Freeze frame data The freeze frame data consists of data for vehicle and transaxle control system operation conditions when malfunctions in the transaxle control system are detected and stored in the TCM. Freeze frame data is stored at the instant the malfunction indicator lamp illuminates, and only a part of the DTC data is stored. Snapshot data The data for all DTCs currently detected is stored. Recorded DTC timing For DTCs with one drive cycle, data is recorded during the malfunction determination period. For DTCs with two drive cycles, data is recorded during non-determination (1st diagnosis) periods.
- Then, select the "Retrieve CMDTCs" and perform procedures according to directions on the IDS screen.
- Verify the DTC according to the directions on the screen. If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.
- After completion of repairs, clear all DTCs stored in the TCM. (See «FREEZE FRAME DATA ITEM TABLE»(ref-579376-S11575965682013100700000).)
Freeze frame data item table
Note. Refer to PID/DATA monitor table for confirm the transaxle control system operation status while the TCM does not store the DTC. (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [FW6A-EL] .) Freeze frame data items are not displayed, according to detected DTC.
Not applicable
| Freeze frame data item | Unit | Description | Corresponding PID/DATA monitor item |
|---|---|---|---|
| LOAD | % | Calculated engine load | LOAD |
| ECT | °C {°F} | Engine coolant temperature | ECT |
| RPM | RPM | Engine speed | RPM |
| VS | KPH {MPH} | Vehicle speed | VSS |
| SPARKADV | ° | Ignition timing | SPARKADV |
| IAT | °C {°F} | Intake air temperature | IAT |
| TP | % | Throttle valve position No.1 | TP |
| RUNTM | Hh:mm:ss | Time from engine start | |
| VPWR | V | Module supply voltage | VPWR |
| APP_D | % | Accelerator pedal position No.1 | APP1 |
Snapshot data item table
Note. Refer to PID/DATA monitor table for confirm the transaxle control system operation status while the TCM does not store the DTC. (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [FW6A-EL] .) Snapshot data items are not displayed, according to detected DTC.
Not applicable
| Snapshot data item | Unit | Description | Corresponding PID/DATA monitor item |
|---|---|---|---|
| LOAD | % | Calculated engine load | LOAD |
| ECT | °C {°F} | Engine coolant temperature | ECT |
| RPM | RPM | Engine speed | RPM |
| VSS | KPH {MPH} | Vehicle speed | VSS |
| IAT | °C {°F} | Intake air temperature | IAT |
| EG_RUN_TIME | Time from engine start | ||
| VPWR | V | Module supply voltage | VPWR |
| APP1 | % | Accelerator pedal position No.1 | APP1 |
| GEAR_SEL | 1/2/3/4/5/6 | Gear shift position | GEAR_SEL |
| TSS | RPM | Turbine/input shaft speed | TSS |
| TFT | °C {°F} | ATF temperature | TFT |
| OSS | RPM | Output shaft speed | OSS |
| LOCK_UP | OFF/SLIP/On | Torque converter (TCC condition) | LOCK_UP |
| OIL_PRES_SW2 | Off/On | Oil pressure switch No.2 condition | OP_SW2 |
| OIL_PRES_SW1 | Off/On | Oil pressure switch No.1 condition | OP_SW1 |
| SS_ON_OFF | Off/On | On/off solenoid condition | SS_ON-OFF |
| APP | % | Accelerator pedal position No.1 | APP1 |
| G_INHIBIT_6 | Off/On | 6GR is inhibited due to malfunction. | |
| G_INHIBIT_5 | Off/On | 5GR is inhibited due to malfunction. | |
| G_INHIBIT_4 | Off/On | 4GR is inhibited due to malfunction. | |
| G_INHIBIT_3 | Off/On | 3GR is inhibited due to malfunction. | |
| G_INHIBIT_2 | Off/On | 2GR is inhibited due to malfunction. | |
| G_INHIBIT_1 | Off/On | 1GR is inhibited due to malfunction. | |
| G_INHIBIT_R | Off/On | R position is inhibited due to malfunction. | |
| G_INHIBIT_N | Off/On | N position is inhibited due to malfunction. | |
| OIL_PRES_SW4 | Off/On | Oil pressure switch No.4 condition | OP_SW4 |
| OIL_PRES_SW3 | Off/On | Oil pressure switch No.3 condition | OP_SW3 |
| EOP_RLY | Off/On | Electric AT oil pump relay condition | EOP_RLY |
| SHIFT_CTRL | DEFAULT/MANUAL/C_CONTROL/HIGH_TEMP/D_MANUAL/FAIL_SAFE | Shift control mode | SHIFT_CTRL |
| SLIP_VALUE | RPM | Actual slip value between TSS and OSS | |
| HTM_DIS | Km {mile} | Travel distance since determination of ATF high temperature mode | HTM_DIS |
Clearing DTCs Procedures
- Connect the M-MDS (IDS) to the DLC-2. see scheme 4: Identifying Data Link Connector (DLC-2)
- After the vehicle is identified, select the following items from the initialization screen of the IDS. Select "Self Test". Select "Modules". Select "TCM".
- Verify the DTC according to the directions on the screen.
- Press the clear button on the DTC screen to clear the DTC.
- Switch the ignition to off.
- Switch the ignition to ON and wait for 5 s or more.
- Perform DTC inspection. (See «READING DTCS PROCEDURE»(ref-579439-S13719432922013100700000).)
- Verify that no DTCs are displayed.
Foreword
- The on-board diagnosis test displays DTCs for locations determined to be malfunctioning based on the operation results from the forced operation of each solenoid and selection of each gear. Therefore, this is an effective mode if DTCs which do not specify the malfunctioning location, such as a gear ratio malfunction, are displayed.
- When the following DTCs displayed, perform the on-board diagnostic test.
| DTC No. | Description |
|---|---|
| P0729:00 | 6GR incorrect ratio |
| P0731:00 | 1GR incorrect ratio |
| P0732:00 | 2GR incorrect ratio |
| P0733:00 | 3GR incorrect ratio |
| P0734:00 | 4GR incorrect ratio |
| P0735:00 | 5GR incorrect ratio |
| P0736:00 | Gear reverse incorrect ratio |
| P0780:00 | Gear shifting malfunction |
| P079A:00 | Shift solenoid No.3 stuck off/On/off solenoid stuck on |
| P1738:00 | Automatic transaxle internal malfunction |
| P1784:00 | Hi cut valve stuck off/R-3-5 cut valve stuck on |
- When DTCs are displayed by the on-board diagnosis test, perform the instructions in the applicable DTC troubleshooting.
| WARNING | The on-board diagnosis test forcibly changes gears within the driving shift range while the engine is running. Before implementing the on-board diagnosis test, securely apply the parking brake and set the wheel blocks for both the front and rear wheels. Otherwise, the vehicle will move which could cause injury or property damage. |
Note. The time required to perform the diagnostic is 2 to 3 min . If unsafe actions such as shift operation and brake pedal release are detected before the AT warning light flashes, the on-board diagnostic test mode is canceled and the AT warning light flashes 5 times .
Scheme 1725
Scheme 1726
Scheme 1727
Scheme 1728
Scheme 1729
Scheme 1730
- Apply the parking brake firmly, and set the wheel blocks for both the front and rear wheels.
- Inspect the ATF level. (See «AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [FW6A-EL]»(ref-579370-S13857790222013100700000).)
- Connect the M-MDS (IDS) to the DLC-2. see scheme 5: Identifying Data Link Connector (DLC-2)
- Perform vehicle identification using the M-MDS.
- Start the engine.
- After the vehicle is identified, select the following items from the initialization screen of the IDS. Select "DataLogger". Select "Modules". Select "TCM".
- While checking the PID TFT (ATF temperature), warm-up the engine completely and allow the ATF temperature to reach 55 °C {131 °F} or more.
- Select the following items from the initialization screen of the IDS. Select "Self Test". Select "Modules". Select "TCM". Select "Retrieve CMDTCs".
- Perform the following steps (1) to (5) with the brake pedal depressed. (Scheme 1725): Pressing Brake Pedal NOTE: If the on-board diagnosis test is shut down (AT warning light flashes 5 times), resume the procedure from Step 1. Shift the selector lever to the R position. (Scheme 1726): Shifting Selector Lever To R Position Clear DTCs using the M-MDS and verify that the AT warning light flashes 2 times. (See «ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL]»(ref-579376-S25255133932013100700000).) (Scheme 1727): AT Warning Light Within 5 s after the AT warning light flashes 2 times, shift the selector lever to the N position and verify that the AT warning light flashes 2 times. (Scheme 1728): Shifting Selector Lever To N Position Within 5 s after the AT warning light flashes 2 times, shift the selector lever to the D position and verify that the AT warning light flashes 3 times. (Scheme 1729): Shifting Selector Lever To D Position NOTE: Approx. 30 s is required until the AT warning light flashes. In addition, shift shock occurs a few times during stand-by. After the AT warning light flashes 3 times, shift the selector lever to the P position. (Scheme 1730): Shifting Selector Lever To P Position
- Release the brake pedal.
- Perform the DTC inspection using the M-MDS. (See «ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FW6A-EL]»(ref-579376-S25255133932013100700000).) If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection. (See «ON-BOARD DIAGNOSTIC SYSTEM WIRING DIAGRAM [FW6A-EL]»(ref-579376-S20286294132013100700000).)
Simulation Item Table
| Item | Description | Unit/Condition | Operation condition |
|---|---|---|---|
| SS_ON-OFF | On/off solenoid condition | Off/On | Under the following conditions: Vehicle stopped Idling at P or N position |
| SS1_C | Shift solenoid No.1 target current | A | Under the following conditions: Vehicle stopped Idling at P or N position |
| SS2_C | Shift solenoid No.2 target current | A | Under the following conditions: Vehicle stopped Idling at P or N position |
| SS3_C | Shift solenoid No.3 target current | A | Under the following conditions: Vehicle stopped Idling at P or N position |
| SS4_C | Shift solenoid No.4 target current | A | Under the following conditions: Vehicle stopped Idling at P or N position |
| SSLU_C | TCC control solenoid target current | A | Under the following conditions: ATF temperature (PID: TFT) is 20 °C {68 °F} or more. Output shaft speed (PID: OSS) is 10 rpm or more. Turbine/input shaft speed (PID: TSS) is 1,000 rpm or more. Brake pedal released |
| SSP_C | Pressure control solenoid target current | A | Idling at P or N position |