Test 90A - All Doors Fail To Lock & Unlock From One Switch

NOTE: Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Remove appropriate door trim panel. Disconnect door lock switch connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Pink wire) on door lock switch connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
Connect jumper wire between terminals No. 1 (Orange/Violet wire) and No. 4 (Pink wire) on door lock switch connector. Using scan tool, read door lock switch voltage. If voltage is 8 volts or less, repair open Orange/Violet wire. If voltage is more than 8 volts, replace door lock switch.