GLA-421

Diagnostic Trouble Code (DTC) Information

Condition







If the control module registers that communication with the glass breakage sensor 5 own control module is faulty when: The alarm system is powered up or the alarm is activated/deactivated, then diagnostic trouble code (DTC) GLA-421 is stored after approximately 2 seconds. The fault must be present when the alarm has been activated seven times before the diagnostic trouble code (DTC) will be stored.

Condition

- None.

Possible source

- Short-circuit to ground or voltage in the communication cable.
- Open-circuit in communication cable.
- The communication cable is too close to a source of interference.
- Defective glass breakage sensor.

Condition

- The indicator LED in the sun sensor flashes for 15 seconds when the ignition is switched on.
- The system will not trigger the alarm if there is a glass breakage in the passenger compartment.