Dodge dakota 2002 Service Manual page 365

8A - 2 AUDIO
AUDIO (Continued)
Instrument Cluster allows it to process those inputs
and send the proper messages to the radio receiver
over the Programmable Communication Interface
(PCI) bus network to control the radio volume up or
down, station seek up or down, preset station
advance, and mode advance functions.
Refer to the owner's manual for more information
on the features, use and operation of each of the
available audio systems.
DIAGNOSIS AND TESTING - AUDIO
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
CONDITION
NO AUDIO
NO RADIO DISPLAY
diagnostic
AUDIO SYSTEM DIAGNOSIS TABLE
POSSIBLE CAUSES
1. Fuse faulty.
2. Radio/amplifier (if
equipped) connector faulty.
3. Wiring faulty.
4. Radio/amplifier (if
equipped) ground faulty.
5. Radio/amplifier (if
equipped) faulty.
6. Speakers faulty.
1. Fuse faulty.
2. Radio connector faulty.
3. Wiring faulty.
4. Radio ground faulty.
5. Radio faulty.
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-
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.
CORRECTION
1. Check radio fuse and Ignition-Off Draw (IOD)
fuse in the Integrated Power Module (IPM).
Replace fuses, if required.
2. Check for loose or corroded radio/amplifier
connector. Repair, if required.
3. Check for shorted or open wires. Repair wiring,
if required.
4. Check for continuity between radio chassis and
a known good ground. There should be
continuity. Repair ground, if required.
5. Refer to appropriate Diagnostic Service
Manual.
6. Replace speaker as necessary.
1. Check radio fuse and Ignition-Off Draw (IOD)
fuse in Integrated Power Module (IPM). Replace
fuses, if required.
2. Check for loose or corroded radio connector.
Repair, if required.
3. Check for battery voltage at radio connector.
Repair wiring, if required.
4. Check for continuity between radio chassis and
a known good ground. There should be
continuity. Repair ground, if required.
5. Refer to appropriate Diagnostic Service
Manual.
THE AIRBAG SYSTEM
DR