Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




If the control module registers that siren control module transmits a signal that the siren battery voltage level has sunk under 6.0 V when: the siren is voltage or the alarm activated or deactivated, Diagnostic trouble code (DTC) GLA-321 is stored.

Substitute value
None.

Possible source
- Battery voltage too low due to insufficient charge 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]
- 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.