Jeep Liberty KJ Series equipped with the premium speaker package have a amplifier choke and relay (1). The amplifier choke and relay is mounted to the lower instrument panel above the pedals and towards the instrument panel center stack. The amplifier choke and relay should be checked if there is no sound output from the speakers. The amplifier choke and relay can not be repaired or adjusted and, if faulty or damaged, the unit must be replaced.
The amplifier choke and relay is used to control the supply of fused battery current to the front door speaker mounted dual amplifiers. The speaker relay is energized by a fused 12 volt output from the radio receiver whenever the radio is turned on. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.