Speaker Description; Operation; Diagnosis And Testing - Speaker - Chrysler Vehicle User Manual

8A - 10 AUDIO
RADIO NOISE SUPPRESSION GROUND STRAP (Continued)
(3) Install the engine-to-frame ground strap eyelet
over the forward ignition coil mounting stud on the
right side of the engine.
(4) Install and tighten the nut that secures the
engine-to-frame ground strap eyelet to the forward
ignition coil mounting stud on the right side of the
engine. Tighten the nut to 22.6 N·m (200 in. lbs.).
SPEAKER
DESCRIPTION
The standard equipment speaker system includes
four full-range speakers. The two front speakers are
mounted behind a removable bezel located on each
outboard end of the lower instrument panel. With the
premium speaker system, the standard front speak-
ers are replace with an enclosure assembly that
includes a 4 inch speaker and a 1 inch tweeter. The
two rear speakers are mounted behind a grille
located on each outboard end of the sport bar, above
the rear seating area of the vehicle.

OPERATION

Two wires connected to each speaker, one feed cir-
cuit (+) and one return circuit (–), allow the audio
output signal electrical current to flow through the
speaker voice coil. For complete circuit diagrams,
refer to the appropriate wiring information. The wir-
ing information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.

DIAGNOSIS AND TESTING - SPEAKER

Any diagnosis of the Audio system should
begin with the use of the DRB III
tool. For information on the use of the DRB
III , refer to the appropriate Diagnostic Service
Manual.
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
WARNING: DISABLE
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING COLUMN, SEAT BELT TENSIONER, SIDE
AIRBAG, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
diagnostic
THE AIRBAG SYSTEM
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
CAUTION: The speaker output of the radio is a
"floating ground" system. Do not allow any speaker
lead to short to ground, as damage to the radio
may result.
NOTE: If poor sound quality is noted in the audio
system, check the Cabin Equalization curve pro-
grammed in the instrument cluster. Make sure a
base speaker system has the Base Cabin Equaliza-
tion Curve programmed to the vehicle. If the vehicle
has a premium speaker system, make sure the Pre-
mium Cabin Equalization Curve is programmed to
the vehicle
(1) If all speakers are inoperative, check the fuses
in the Power Distribution Center (PDC). If OK, go to
Step 2. If not OK, repair the shorted circuit or com-
ponent as required and replace the faulty fuse.
(2) Turn the ignition switch to the ON position.
Turn the radio receiver ON. Adjust the balance and
fader control controls to check the performance of
each individual speaker. Note the speaker locations
that are not performing correctly. Go to Step 3.
(3) Turn the radio receiver OFF. Turn the ignition
OFF. Disconnect and isolate the battery negative
cable. Remove the radio receiver. Go to Step 4.
(4) Check both the speaker feed (+) circuit and
return (-) circuit cavities for the inoperative speaker
at the radio receiver wire harness connector for con-
tinuity to ground. There should be no continuity. If
OK, go to Step 5. If not OK, repair the shorted
speaker feed (+) and/or return (-) circuits(s) to the
speaker as required.
(5) Disconnect wire harness connector at the inop-
erative speaker. Check for continuity between the
speaker feed (+) circuit cavities of the radio receiver
wire harness connector and the speaker wire harness
connector. Repeat the check between the speaker
return (-) circuit cavities of the radio receiver wire
harness connector and the speaker wire harness con-
nector. In each case, there should be continuity. If
OK, replace the faulty speaker. If not OK, repair the
open speaker feed (+) and/or return (-) circuits(s) as
required.
TJ