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TROUBLE DIAGNOSIS AT-49 D E F G H I J K L M A B AT 4 4-3 Part 2 ❏ Vehicle Cannot Be Started From D1. ❏ A/T Does Not Shift: D1 → D2. ❏ A/T Does Not Shift: D2 → D3. ❏ A/T Does Not Shift: D3 → D4. Part 3 ❏ Cannot Be Changed To Manual Mode. ❏ A/T Does Not Shift: 5th gear → 4th gear. ❏ A/T Does Not Shift: 4th gear → 3rd gear. ❏ A/T Does Not Shift: 3rd gear → ❏ A/T Does Not Shift: 2nd gear → ❏ Vehicle Does Not Decelerate By Engine Brake. ❏ Perform self-diagnostics. Enter checks for detected items. ❏ Vehicle speed sensor·A/T. ❏ Vehicle speed sensor·MTR. ❏ ❏ TCC solenoid valve. ❏ Line pressure solenoid valve. ❏ Input clutch solenoid valve. ❏ Front brake solenoid valve. ❏ Low coast brake solenoid valve. . ❏ High and low reverse clutch solenoid valve. . ❏ PNP switch. ❏ A/T fluid temperature sensors 1, 2. ❏ Turbine revolution sensors 1, 2. . ❏ A/T interlock. . ❏ ❏ . ❏ Accelerator pedal position signal. . ❏ Engine sped signal. ❏ CAN communication. ❏ TCM power supply. . ❏ Battery ❏ Other 5 ❏ Inspect each system for items found to be NG in the self-diagnostics and repair or replace the malfunction parts. 6 ❏ Perform all road tests and enter the checks again for the required items. 7 ❏ For any remaining NG items, execute the “diagnostics procedure” and repair or replace the malfunction parts. See the chart for diagnostics by symptoms. (This chart also contains other symptoms and inspection proce- 8 ❏ Erase the results of the self-diagnostics from the TCM. , |