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Items Symptom Condition Diagnostic Item Reference Page No Up Shift Failure to change 3 to D 4 . ON vehicle 1. Park/neutral position (PNP) switch 2. Manual control linkage adjustment 3. Shift solenoid valve A 4. Vehicle speed sensor·A/T (Revolution 5. A/T fluid temperature sensor OFF vehicle 6. Brake band A/T does not shift 4 when driv- ing with overdrive ON vehicle 1. Throttle position sensor (Adjustment) 2. Park/neutral position (PNP) switch 3. Vehicle speed sensor·A/T (Revolution 4. Shift solenoid valve A 5. Overrun clutch solenoid valve 6. Control valve assembly 7. A/T fluid temperature sensor 8. Line pressure solenoid valve OFF vehicle 9. Brake band 10. Overrun clutch Slips/Will Not Vehicle will not ON vehicle 1. Manual control linkage adjustment 2. Line pressure test 3. Line pressure solenoid valve 4. Control valve assembly OFF vehicle 5. Reverse clutch 6. High clutch 7. Forward clutch 8. Overrun clutch 9. Low & reverse brake Vehicle will not ON vehicle 1. Manual control linkage adjustment OFF vehicle 2. Low one-way clutch GI MA EM LC EC FE TF PD AX SU BR ST RS BT HA SC EL IDX TROUBLE DIAGNOSIS — GENERAL DESCRIPTION Symptom Chart (Cont’d) AT-85 |