Diesel Data: Automotive Repair

Diagnostic Trouble Code (DTC) Information






Diagnostic trouble code (DTC) information

Condition




If the control module registers that the voltage level in the sirens internal battery is < 2.5 V when: the alarm system is powered up or the alarm is activated/deactivated, then diagnostic trouble code (DTC) GLA-312 is stored after 2 seconds.

Substitute value
None.

Possible source
- Defective internal battery.
- Fault in 15 I-supply to the siren.
- Defective siren.

Fault symptom[s]
- The indicator LED flashes for 15 seconds when the ignition is switched on.