Ford 2003 Mustang Workshop Manual page 3253

SECTION 413-00: Instrument Cluster and Panel Illumination
DIAGNOSIS AND TESTING
Instrument Cluster and Panel Illumination
Refer to Wiring Diagrams Cell
Special Tool(s)
73III Automotive Meter
105-R0057 or equivalent
Inspection and Verification
NOTE: A new instrument cluster must be reconfigured. Refer to
NOTE: The instrument panel dimmer switch is a part of the headlamp switch.
1. Verify the customer concern.
2. Visually inspect for obvious signs of electrical damage.
Visual Inspection Chart
Electrical
Central junction box (CJB) fuses:
5 (15A)
21 (5A)
34 (20A)
37 (5A)
32 (15A)
27 (20A)
Circuitry
Damaged switch
3. If the fault is not visually evident, determine the symptom and proceed to the Symptom Chart.
Symptom Chart
Symptom Chart
Condition
The control illumination is
inoperative
The instrument cluster
illumination is inoperative
71 , Instrument Illumination for schematic and connector information.
Possible Sources
Central junction box
(CJB) fuse 37 (5A).
Circuitry.
Headlamp switch.
Circuitry.
Instrument cluster.
2003 Mustang Workshop Manual
Section 418-01 .
Action
Go To Pinpoint
Test A .
Go To Pinpoint
Test B .