Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




If the control module registers that the siren control module is transmitting a signal indicating that the siren battery voltage level has sunk under 6.0 V when: the siren is powered up or the alarm is activated/deactivated, then diagnostic trouble code (DTC) GLA-321 is stored.

Substitute value
None.

Possible source
- Battery voltage too low due to insufficient charging or poor battery.
- Open-circuit or short-circuit to ground in siren communication cable.
- Open-circuit in siren power supply or ground lead.

Fault symptom[s]
- The indicator LED flashes for 15 seconds when the ignition is switched on.
- When the alarm is activated the internal battery takes over power supply and the siren sounds for 30 seconds.