Audio System - Ford 2002 Bantam Workshop Manual

415-00-2
DIAGNOSIS AND TESTING

Audio System

Inspection and Verification
1. Verify the customer concern.
2. Make sure you understand the customer
concern; does the concern arise during start-
up, with the vehicle in motion, do ambient
conditions effect, alter or induce the
concern?
Symptom Chart
Condition
• The audio unit is inoperative /
does not operate correctly.
• The display is blank-radio re-
ceiver / cassette player operates
• Poor reception AM only, FM
only or both AM/FM
E6747 EN
Audio System — General Information
Visual Inspection Chart
Possible Sources
• Fuse(s).
• Ground circuit.
• Power circuit.
• Audio unit.
• Audio unit.
• Antenna.
• Antenna connections.
• Suppression equipment.
• Audio unit.
Mechanical
• Audio unit damage
• Cassette player
jammed, not loading
• Compact disc (CD)
player jammed, not
loading
• Audio entertainment
module damage
• Radio
receiver/cassette
player power amplifier
damage
• Antenna/alignment
• Speakers/water
damage
• Speakers/incorrectly
mounted
• Speaker cones
damaged
• Foreign material
contacting speaker
cone
• Accessory installation
• Trim reso-
nance/incorrectly fit-
ted trim.
3. Visually inspect for obvious signs of
mechanical or electrical damage.
4. If an obvious cause for an observed or
reported concern is found, correct the cause
(if possible) before proceeding to the next
step.
5. If the cause is not visually evident, verify the
symptom and refer to the Symptom Chart.
• Go to Pinpoint Test A.
• INSTALL a new audio unit.
• Go to Pinpoint Test B.
415-00-2
Electrical
• Fuse 2 (10 A)
• Fuse 19 (10 A)
• Wiring harness
• Loose or corroded
electrical connectors
• Over stressed wiring,
internally dam-
aged/chaffing of
wires.
Action
07/2001 2002 Bantam