A leadless pacemaker (102, 104) comprising: at least two electrodes; a sensing circuit electrically coupled to the at least two electrodes and configured to sense an electrogram; a memory that stores one or more morphology templates (602, 604, 606) including a first morphology template; at least one of a processor or controller configured to compare a morphology of a portion of the sensed EGM to the first template to thereby determine whether a match therebetween is detected, characterized in that the first morphology template corresponding to far-field signal components expected to be present in the EGM when a pacing pulse delivered to a remote cardiac chamber by a further LP (104, 102) captures tissue of the remote cardiac chamber; and the at least one of a processor or controller is further configured to determine that capture of the remote cardiac chamber occurred responsive to a pacing pulse delivered by the further LP (104, 102), based on a match being detected between the morphology of a portion of the sensed EGM and the first morphology template; determine that capture of the remote cardiac chamber failed to occur responsive to a pacing pulse delivered by the further LP (104, 102), based on a match failing to be detected between the morphology of a portion of the sensed EGM and the first morphology template; in response to determining that capture of the remote chamber failed to occur responsive to a pacing pulse delivered by the further LP (104, 102), cause a message to be sent by the LP to the further LP (104, 102) to inform the further LP (104, 102) that capture of the remoted chamber failed or to instruct the further LP (104, 102) to increase a voltage of one or more further pacing pulses delivered to the remote chamber. at least two electrodes; a sensing circuit electrically coupled to the at least two electrodes and configured to sense an electrogram; a memory that stores one or more morphology templates (602, 604, 606) including a first morphology template; at least one of a processor or controller configured to compare a morphology of a portion of the sensed EGM to the first template to thereby determine whether a match therebetween is detected, characterized in that the first morphology template corresponding to far-field signal components expected to be present in the EGM when a pacing pulse delivered to a remote cardiac chamber by a further LP (104, 102) captures tissue of the remote cardiac chamber; and the at least one of a processor or controller is further configured to determine that capture of the remote cardiac chamber occurred responsive to a pacing pulse delivered by the further LP (104, 102), based on a match being detected between the morphology of a portion of the sensed EGM and the first morphology template; determine that capture of the remote cardiac chamber failed to occur responsive to a pacing pulse delivered by the further LP (104, 102), based on a match failing to be detected between the morphology of a portion of the sensed EGM and the first morphology template; in response to determining that capture of the remote chamber failed to occur responsive to a pacing pulse delivered by the further LP (104, 102), cause a message to be sent by the LP to the further LP (104, 102) to inform the further LP (104, 102) that capture of the remoted chamber failed or to instruct the further LP (104, 102) to increase a voltage of one or more further pacing pulses delivered to the remote chamber. determine that capture of the remote cardiac chamber occurred responsive to a pacing pulse delivered by the further LP (104, 102), based on a match being detected between the morphology of a portion of the sensed EGM and the first morphology template; determine that capture of the remote cardiac chamber failed to occur responsive to a pacing pulse delivered by the further LP (104, 102), based on a match failing to be detected between the morphology of a portion of the sensed EGM and the first morphology template; in response to determining that capture of the remote chamber failed to occur responsive to a pacing pulse delivered by the further LP (104, 102), cause a message to be sent by the LP to the further LP (104, 102) to inform the further LP (104, 102) that capture of the remoted chamber failed or to instruct the further LP (104, 102) to increase a voltage of one or more further pacing pulses delivered to the remote chamber.