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SE-82 < SERVICE INFORMATION > AUTOMATIC DRIVE POSITIONER • When voltage signal dose not appear with a constant voltage (approx. 5V), replace automatic driver seat control unit. • When voltage signal dose not appear with a constant voltage (approx. 0V), replace driver seat control unit. 4. CHECK DRIVER SEAT CONTROL UNIT Dose the automatic drive positioner operate, when the driver seat control unit exchanged? Does seat memory function operate? YES >> Replace automatic drive positioner control unit. NG >> Replace driver seat control unit. Check Lumbar Support Circuit INFOID:0000000001328144 1. CHECK LUMBAR SUPPORT SWITCH 1. Turn ignition switch OFF. 2. Disconnect lumbar support switch connector. 3. Check voltage between lumbar support switch connector B158 OK or NG OK >> GO TO 2. NG >> Repair or replace harness between fuse block (J/B) and lumbar support switch. 2. CHECK LUMBAR SUPPORT SWITCH Lumbar support switch operate, check continuity lumbar support switch connector B158 terminal 31, 32 and 1, OK or NG OK >> GO TO 3. NG >> Replace lumbar support switch. 3. CHECK LUMBAR SUPPORT MOTOR HARNESS 1. Disconnect lumbar support motor connector. 2. Check continuity between lumbar support switch connector 3. Check continuity between lumbar support switch connector 1 (R) – Ground: : Battery voltage PIIB8600E Con- nector Terminal Lumbar support switch condition Continuity B158 31 1 BACKWARD Yes 16B Other than above No 32 1 FORWARD Yes 16B Other than above No PIIB8601E 31 (W) − 31 (W) : Continuity should exist. 32 (L) − 32 (L) : Continuity should exist. 31 (W) − Ground : Continuity should not exist. 32 (L) − Ground : Continuity should not exist. PIIB8602E |