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Home >> Mazda >> 2006 >> B4000 Base, Automatic >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Troubleshooting (Instrumentation/Driver Information) >> Pinpoint Test 3: DTC B1217 - Horn Relay Coil Circuit Failure And DTC B1218 - Horn Relay Circuit Short To Battery (Vehicles Equipped With Remote Keyless Entry [RKE]) >> Normal Operation

Normal Operation

The remote keyless entry (RKE) transmitter sends a frequency signal that is received by the smart junction box (SJB). If the frequency signal received is from the panic button, the SJB grounds the horn relay (part of the SJB) control circuit (DL) on then off continuously until the panic button is pressed again, the key is turned to the RUN position or 2 minutes and 45 seconds have elapsed.