Operation - Dodge RAM 1500 1998 Owner's Manual

8J - 6 INSTRUMENT CLUSTER
INSTRUMENT CLUSTER (Continued)
1 - MALFUNCTION INDICATOR LAMP
2 - VOLTAGE GAUGE
3 - LEFT TURN INDICATOR
4 - TACHOMETER
5 - AIRBAG INDICATOR
6 - HIGH BEAM INDICATOR
7 - SEATBELT INDICATOR
8 - SPEEDOMETER
9 - RIGHT TURN INDICATOR
10 - OIL PRESSURE GAUGE
11 - CARGO LAMP INDICATOR
12 - DOOR AJAR INDICATOR
board hardware, the cluster overlay, or the EMIC
housing are damaged or faulty, the entire EMIC mod-
ule must be replaced. The cluster lens, hood and
mask unit and the individual incandescent lamp
bulbs with holders are available for individual ser-
vice replacement.

OPERATION

The ElectroMechanical Instrument Cluster (EMIC)
in this model also includes the hardware and soft-
ware necessary to serve as the electronic body control
module and is sometimes referred to as the Cab
Compartment Node or CCN. The following informa-
tion deals primarily with the instrument cluster
functions of this unit. Additional details of the elec-
tronic body control functions of this unit may be
found within the service information for the system
or component that the EMIC controls. For example:
Additional details of the audible warning functions of
Fig. 3 Gauges & Indicators - Gasoline Engine
13 - ELECTRONIC THROTTLE CONTROL (ETC) INDICATOR
14 - ENGINE TEMPERATURE GAUGE
15 - SECURITY INDICATOR
16 - GEAR SELECTOR INDICATOR DISPLAY (INCLUDES
CRUISE & UPSHIFT INDICATORS)
17 - CHECK GAUGES INDICATOR
18 - BRAKE INDICATOR
19 - ABS INDICATOR
20 - ODOMETER/TRIP ODOMETER DISPLAY (INCLUDES
ENGINE HOURS, WASHER FLUID, LAMP OUTAGE, TOW/HAUL
& SERVICE 4x4 INDICATORS)
21 - ODOMETER/TRIP ODOMETER SWITCH BUTTON
22 - FUEL GAUGE
23 - LOW FUEL INDICATOR
24 - TRANSMISSION OVERTEMP INDICATOR
the EMIC are found within the Chime/Buzzer service
information.
The EMIC is designed to allow the vehicle operator
to monitor the conditions of many of the vehicle com-
ponents and operating systems. The gauges and indi-
cators in the EMIC provide valuable information
about the various standard and optional powertrains,
fuel and emissions systems, cooling systems, lighting
systems, safety systems and many other convenience
items. The EMIC is installed in the instrument panel
so that all of these monitors can be easily viewed by
the vehicle operator when driving, while still allow-
ing relative ease of access for service. The micropro-
cessor-based EMIC hardware and software uses
various inputs to control the gauges and indicators
visible on the face of the cluster. Some of these
inputs are hard wired, but most are in the form of
electronic messages that are transmitted by other
electronic modules over the Programmable Communi-
cations Interface (PCI) data bus network. (Refer to 8
DR