LEMON Manuals: Even more car manuals for everyone
Home >> Dodge and Ram >> 2004 >> SRT-4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Instrument Cluster) >> Instrument Cluster >> Operation >> Notes

Instrument Cluster: Operation: Notes

WARNING: This page is about a different car, the 2003 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

The instrument cluster controls the courtesy lamps. It receives and sends messages to other modules via the PCI (J1850) bus circuit. It controls all the instrument illumination and the chime is also an integral part of the cluster.

All gauges are the analog type. When the ignition switch is moved to the OFF position, the cluster drives each gauge to its lowest position. The individual gauges are not serviceable and require complete replacement of the cluster if one or more gauges are inoperable.

The gauges are the magnetic air-core type. When the ignition switch is OFF, the gauge pointers should rest at or below the lowest graduation. The instrument cluster may be checked quickly by using the cluster self-diagnostics (Refer to STANDARD PROCEDURE - SELF-DIAGNOSTICS  ). After bulb check, (with the key in the RUN position and engine running) all MODULE warning indicators (if so equipped: Airbag, ABS, MIL, Charging System, Trac Off, ETC - Export only) should be extinguished. If any of these indicators stay ON, use the DRB III(R) scan tool to determine module faults. Also refer to the proper Body Diagnostic Procedures for cluster self-diagnostic results.

NOTE: If any of the gauge pointers are stuck on the wrong side of the pointer stop, perform one of the following:
  • Pull the M1 fuse in the fuseblock (refer to Wiring Diagrams for fuse locations) and key on. The gauge pointer will "sweep" the gauges and return all pointers to the correct side of the stop. Key OFF, reinsert the M1 fuse. The cluster will "sweep" the gauges one additional time. The cluster will "sweep" the gauges anytime there was a change in the state of the M1 fuse.
  • Perform the instrument self-diagnostic check (Refer to STANDARD PROCEDURE - SELF-DIAGNOSTICS  ). This will "sweep" all the pointers to the correct side of the pointer stop.

One button is used to switch the display from trip to total mileage. Holding the button when the display is in the trip mode will reset the trip mileage. This button is also used to put the cluster in self-diagnostic mode (Refer to STANDARD PROCEDURE - SELF-DIAGNOSTICS  ). Some of the indicators will come on briefly for a bulb check when the ignition is turned from OFF to ON. The LED's are non serviceable and if one or more warning indictor LED's are out, the entire cluster must be replaced.

In the event that the instrument cluster looses communication with all other modules on the PCI bus, the cluster will display "no bus" in the VF display. The VF display also displays "Door", "Cruise", "Trac", and odometer trip or total.

If the cluster does not detect voltage on the M1 circuit, the message "FUSE" will alternate with the odometer/trip odometer. The lack of voltage can be due to the M1 Fused B(+) (IOD) fuse being open, or a circuit problem.

Indicator lamps use ON/OFF switch functions for operation, while gauges use a sending unit or sensor.

The instrument cluster will learn some features of the vehicle that it is installed in so swapping clusters from vehicle to vehicle is not recommended.

The features that are learned are:

scientia non olet · About LEMON Manuals