Keyless Entry Control Module ?

This electronic module is the “brain” that lets your car accept remote lock/unlock commands and communicate with the vehicle’s security system. It is needed to keep daily access fast, safe, and reliable, especially when doors are used often or the car is parked outside.

How It Works ⚙️

The unit receives the coded signal from the key fob, verifies the rolling code, then sends commands to door lock actuators and the alarm/immobilizer circuit (where equipped). It also manages timing for lock pulses, hazard flash confirmation, and anti-scan protection. A healthy module ensures quick response and consistent range.

Symptoms of a Faulty Module ?

When this part fails, the remote may stop working even with a new battery, locks may cycle randomly, or only some doors respond. You may notice no confirmation flashes, intermittent operation, or a security warning behavior after reconnecting the battery.

What Happens If You Ignore It ?

A broken controller can leave you locked out, reduce theft protection, drain the battery due to wake-up errors, or cause repeated actuator strain. In worst cases, central locking becomes unreliable and the alarm may trigger unexpectedly.

Compatibility ✅

• L300