Cruise Indicator Lamp-On Message - Each time the cluster receives an electronic cruise indicator
lamp-ON message from the PCM indicating the speed control system is ON, the cruise indicator is
illuminated. The indicator remains illuminated until the cluster receives a lamp-OFF message from the
PCM, or until the ignition switch is turned to the OFF position, whichever occurs first.
Actuator Test - Each time the cluster is put through the actuator test, the cruise indicator will be turned
ON, then OFF again during the Vacuum Fluorescent Display (VFD) portion of the test in order to confirm
the functionality of the VFD and the cluster control circuitry.
The PCM continually monitors the speed control switches to determine the appropriate outputs to the speed
control servo. The PCM then sends the proper lamp-ON or lamp-OFF message to the Electro Mechanical
Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN).
For proper diagnosis of the speed control system, the PCM, the EMIC, the CAN data bus or the electronic
communication related to cruise indicator operation a diagnostic scan tool is required. Refer to the appropriate
diagnostic information.
ENGINE TEMPERATURE GAUGE
DESCRIPTION
ENGINE TEMPERATURE GAUGE
Fig. 15: Engine Temperature Gauge Icon
Courtesy of CHRYSLER LLC
An engine coolant temperature gauge is standard equipment on all instrument clusters. This gauge is located on
the left side of the instrument cluster, between the fuel gauge and the speedometer. The gauge consists of a
movable gauge needle or pointer controlled by the instrument cluster circuitry and a fixed 90 degree gauge scale
on the cluster overlay that reads bottom-to-top from C (or Cold) to H (or Hot). An International Control and
Display Symbol icon for Engine Coolant Temperature is located on the cluster overlay, adjacent to the hub of
the gauge needle.
2007 Dodge Nitro R/T
2007 ACCESSORIES AND EQUIPMENT Instrument Cluster - Service Information - Nitro