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Diagnostic Worksheet =NHAT0024S0102 1. l Read the Fail-safe and listen to customer complaints. 2. l CHECK A/T FLUID l Leakage (Follow specified procedure) l Fluid condition l Fluid level 3. l Perform STALL TEST and PRESSURE TEST. l Stall test — Mark possible damaged components/others. l Torque converter one-way clutch l Reverse clutch l Forward clutch l Overrun clutch l Forward one-way clutch l Low & reverse brake l Low one-way clutch l Engine l Line pressure is low l Clutches and brakes except high clutch and brake band are OK l Pressure test — Suspected parts: 4. l Perform all ROAD TEST and mark required procedures. 4-1. Check before engine is started. l SELF-DIAGNOSTIC PROCEDURE - Mark detected items. l Park/neutral position (PNP) switch, AT-102. l A/T fluid temperature sensor, AT-108. l Vehicle speed sensor·A/T (Revolution sensor), AT-114. l Engine speed signal, AT-119. l Torque converter clutch solenoid valve, AT-156. l Line pressure solenoid valve, AT-166. l Shift solenoid valve A, AT-172. l Shift solenoid valve B, AT-177. l Throttle position sensor, AT-182. l Overrun clutch solenoid valve, AT-191. l Park/neutral position (PNP), overdrive control and throttle position switches, AT-260. l A/T fluid temperature sensor and TCM power source, AT-196. l Vehicle speed sensor·MTR, AT-203. l A/T communication line, AT-208. l Control unit (RAM), Control unit (ROM), AT-212. l Control unit (EEP ROM), AT-214. l Battery l Others 4-2. Check at idle l 1. O/D OFF Indicator Lamp Does Not Come On, AT-219. l 2. Engine Cannot Be Started In P and N Position, AT-222. l 3. In P Position, Vehicle Moves Forward or Backward When Pushed, AT-223. l 4. In N Position, Vehicle Moves, AT-224. l 5. Large Shock. N , R Position, AT-227. l 6. Vehicle Does Not Creep Backward In R Position, AT-229. l 7. Vehicle Does Not Creep Forward In D, 2 or 1 Position, AT-233. GI MA EM LC EC FE AX SU BR ST RS BT HA SC EL IDX TROUBLE DIAGNOSIS — INTRODUCTION Introduction (Cont’d) AT-57 |