The instrument cluster for 2004 Jeep Wrangler TJ is an Electromechanical Instrument Cluster (EMIC) that is located in the instrument panel above the steering column opening, directly in front of the driver. The remainder of the EMIC, including the mounts and the electrical connections, are concealed within the instrument panel behind the cluster bezel. Besides analog gauges and indicators, the EMIC modules incorporated a blue-green digital Vacuum Fluorescent Display (VFD) unit for displaying odometer information and certain diagnostic information. The instrument cluster for this model also includes the hardware and software necessary to serve as an electronic body control module. The EMIC includes provisions for the following indicators : airbag indicator, anti-lock brake system, brake indicator, check gauges indicator, cruise indicator, fog lamp indicator, four-wheel drive indicator, front lock indicator, high beam indicator, low fuel indicator, malfunction indicator lamp, rear lock indicator, seatbelt indicator, sentry key immobilizer system, turn signal, and the upshift indicator.
For more details about the instrument panel wiring schematic diagram as a part of the service manual, download the pdf document from the following source :
2004 JEEP WRANGLER TJ INSTRUMENT CLUSTER WIRING SCHEMATIC DIAGRAM DOWNLOAD