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Items Symptom Condition Diagnostic Item Reference Page No Down Shift Failure to change 4 to D 3 . ON vehicle 1. Fluid level 2. Throttle position sensor (Adjustment) EC-50, “Basic Inspec- 3. Overrun clutch solenoid valve 4. Shift solenoid valve A 5. Line pressure solenoid valve 6. Control valve assembly OFF vehicle 7. Low & reverse brake 8. Overrun clutch Failure to change 3 to D 2 or from D 4 to D 2 . ON vehicle 1. Fluid level 2. Throttle position sensor (Adjustment) EC-50, “Basic Inspec- 3. Shift solenoid valve A 4. Shift solenoid valve B 5. Control valve assembly OFF vehicle 6. High clutch 7. Brake band Failure to change 2 to D 1 or from D 3 to D 1 . ON vehicle 1. Fluid level 2. Throttle position sensor (Adjustment) EC-50, “Basic Inspec- 3. Shift solenoid valve A 4. Shift solenoid valve B 5. Control valve assembly OFF vehicle 6. Low one-way clutch 7. High clutch 8. Brake band GI MA EM LC EC FE CL MT PD AX SU BR ST RS BT HA SC EL IDX TROUBLE DIAGNOSIS — GENERAL DESCRIPTION Symptom Chart (Cont’d) AT-73 |