tinct visual and/or audible indications of a problem to
the vehicle operator. The instrument cluster circuitry
may also produce audible warnings for other elec-
tronic modules in the vehicle based upon electronic
tone request messages received over the PCI data
bus. Each audible warning is intended to provide the
vehicle operator with an audible alert to supplement
a visual indication.
The EMIC circuitry operates on battery current
received through the Ignition-Off Draw (IOD) fuse in
the Power Distribution Center (PDC) on a non-
switched fused B(+) circuit, and on battery current
received through a fuse in the fuse block on a fused
ignition
switch
output
(run-start)
circuit.
This
arrangement allows the EMIC to provide some fea-
tures regardless of the ignition switch position, while
other features will operate only with the ignition
switch in the On or Start positions. The EMIC cir-
cuitry is grounded through a ground circuit and take
out of the instrument panel wire harness with an
eyelet terminal connector that is secured under a
ground screw to the back of the instrument panel
structural support near the lower left corner of the
instrument panel, just inboard of the left instrument
panel end bracket.
The EMIC also has a self-diagnostic actuator test
capability, which will test each of the PCI bus mes-
sage-controlled functions of the cluster by lighting
the appropriate indicators, positioning the gauge nee-
dles at several predetermined calibration points
across the gauge faces, and illuminating all segments
of the odometer/trip odometer Vacuum-Fluorescent
Display (VFD) unit. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - DIAGNOSIS AND TEST-
ING). See the owner’s manual in the vehicle glove
box for more information on the features, use and
operation of the EMIC.
GAUGES
All gauges receive battery current through the
EMIC circuitry only when the ignition switch is in
the On or Start positions. With the ignition switch in
Fig. 3 Gauges & Indicators
1 - FOG LAMP INDICATOR
14 - 4WD INDICATOR
2 - VOLTAGE GAUGE
15 - NOT APPLICABLE
3 - CRUISE INDICATOR
16 - ENGINE TEMPERATURE GAUGE
4 - SKIS INDICATOR
17 - AIRBAG INDICATOR
5 - TACHOMETER
18 - CHECK GAUGES INDICATOR
6 - LEFT TURN INDICATOR
19 - MALFUNCTION INDICATOR LAMP
7 - HIGH BEAM INDICATOR
20 - ODOMETER/TRIP ODOMETER SWITCH BUTTON
8 - SEATBELT INDICATOR
21 - ODOMETER/TRIP ODOMETER DISPLAY
9 - RIGHT TURN INDICATOR
22 - ABS INDICATOR
10 - SPEEDOMETER
23 - BRAKE INDICATOR
11 - FRONT LOCK INDICATOR
24 - LOW FUEL INDICATOR
12 - REAR LOCK INDICATOR
25 - FUEL GAUGE
13 - OIL PRESSURE GAUGE
TJ
INSTRUMENT CLUSTER
8J - 5
INSTRUMENT CLUSTER (Continued)