INSPECTION PROCEDURE 1 Check voltage between terminal HORN of theft deterrent and door lock ECU connector and body ground. LOCK Disconnect HORN Replace telltale light RH. BE3843 N07480 P (1) Remove instrument panel. (See BO section) (2) Disconnect the ECU connector. C Measure voltage between terminal HORN of theft deterrent ECU connector and body ground. OK Voltage: 10 – 14 V NG OK Check and replace theft deterrent and door lock ECU. Check and repair harness and connector between theft deterrent and door lock ECU and horn relay (See page IN–30).