BE–158 BODY ELECTRICAL SYSTEM – THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM Door Key Lock and Unlock Switch Circuit CIRCUIT DESCRIPTION The door key lock and unlock switch is built in the door key cylinder. When the key is turned to the lock side, terminal 3 of the switch is grounded and when the key is turned to the unlock side, terminal 1 of the switch is grounded. WIRING DIAGRAM T9 Theft Deterrent and Door Lock ECU 12 V Door Key Lock and Unlock Switch LH 1 W 13 ID1<< G UL3 6 W-B 1 10 W-B 3 1J 1D 3 ID1<< 2 G-Y Door Key Lock and Unlock Switch RH G-Y 12 V 16 2 G-Y 7 IL1<< IL1 W-B 3 1 W 2 W-B IL1<< W UL2 15 N98672