Toyota Corolla Cross: Vehicle Exterior

 Security Horn Circuit

DESCRIPTION When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (multiplex network body ECU) transmits a signal to cause the security horn assembly to sound at intervals of 0.4 seconds. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:

 Rear Door Courtesy Switch Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) detects the condition of the rear door courtesy light switch assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1 for HEV Model: Click here