DTC B2752: Horn Relay Coil Circuit Low: Description

Vehicle horns are activated whenever ground is applied to horn relay coil through horn relay control circuit. Ground may be applied by Body Control Module (BCM) or horn switch.

DTC B2752 sets when, BCM detects a short to ground or an open in horn relay control circuit for 30 seconds or more.

When DTC sets, horns will remain on at all times and BCM stores DTC B2752 in memory.

DTC B2752 clears when fault is no longer present and ignition switch is cycled. A history DTC will clear after 100 consecutive ignition cycles without a fault present. DTC can be cleared by using a scan tool.