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F ON vehicle E F OFF vehicle E Reference page (AT- ) Numbers are arranged in order of probability. Fluid level Control linkage Park/neutral position switch Throttle (accelerator) position sensor (Adjustment) Revolution sensor and vehicle speed sensor Engine speed signal Engine idling speed Line pressure Control valve assembly Shift solenoid valve A Shift solenoid valve B Line pressure solenoid valve T orque converter clutch solenoid valve Overrun clutch solenoid valve A/T fluid temperature sensor Accumulator N-D Accumulator 1-2 Accumulator 2-3 Accumulator 3-4 (N-R) Ignition switch and starter T orque converter Oil pump Reverse clutch High clutch Forward clutch Forward one-way clutch Overrun clutch Low one-way clutch Low & reverse brake Brake band Parking pawl components Failure to change from “D 3 ” to “2” when changing lever into “2” position. . 7 1 2 . . . . 6 5 4 . . 3 . . . . . . . . . . . . q 9 . . q 8 . Gear change from “2 1 ” to “2 2 ” in “2” position. . . 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine brake does not operate in “1” position. . 2 1 3 4 . . . 6 5 . . . 7 . . . . . . . . . . . . q 8 . q 9 . . Gear change from “1 1 ” to “1 2 ” in “1” position. . 2 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Does not change from “1 2 ” to “1 1 ” in “1” position. . . 1 . 2 . . . 4 3 . . . 5 . . . . . . . . . . . . q 6 . q 7 . . Large shock changing from “1 2 ” to “1 1 ” in “1” posi- tion. . . . . . . . . 1 . . . . . . . . . . . . . . . . . . . q 2 . . Transmission overheats. 1 . . 3 . . 2 4 6 . . 5 . . . . . . . . q 14 q 7 q 8 q 9 q 11 . q 12 . q 13 q 10 . ATF shoots out during operation. 1 . . . . . . . . . . . . . . . . . . . . . q 2 q 3 q 5 . q 6 . q 7 q 4 . Offensive smell at fluid charging pipe. 1 . . . . . . . . . . . . . . . . . . . q 2 q 3 q 4 q 5 q 7 . q 8 . q 9 q 6 . Torque converter is not locked up. . . 3 1 2 4 . 6 8 . . . 7 . 5 . . . . . q 9 . . . . . . . . . . Torque converter clutch piston slip 1 . . 2 . . . 3 6 . . 5 4 . . . . . . . q 7 . . . . . . . . . . Lock-up point is extremely high or low. . . . 1 2 . . . 4 . . . 3 . . . . . . . . . . . . . . . . . . A/T does not shift to “D 4 ” when driving with over- drive control switch “ON”. . . 2 1 3 . . 8 6 4 . . . 5 7 . . . . . . . . . . . q 10 . . q 9 . Engine is stopped at “R”, “D”, “2” and “1” positions. 1 . . . . . . . 5 4 3 . 2 . . . . . . . . . . . . . . . . . . TROUBLE DIAGNOSIS — General Description Symptom Chart (Cont’d) AT-45 |