Ford 2003 Mustang Workshop Manual page 3263

SECTION 413-01: Instrument Cluster
DIAGNOSIS AND TESTING
Instrument Cluster
Refer to Wiring Diagrams Cell
Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-F224,
New Generation STAR (NGS)
Tester
418-F052, or equivalent
diagnostic tool
Instrument Gauge System
Tester
014-R1063 or equivalent
73III Automotive Meter
105-R0057 or equivalent
Principles of Operation
NOTE: A new instrument cluster must be reconfigured. Refer to
The instrument cluster is a hybrid electronic cluster (HEC). The instrument cluster uses both hardwired
and the standard corporate protocol (SCP) communication network to transmit and receive
information. As a technician it is very important to understand:
where the input originates from.
all information necessary in order for a feature to operate.
which module(s) receive(s) the input or command message.
does the module which received the input control the output of the feature, or does it output a
message over the SCP network to another module?
which module controls the output of the feature.
The instrument cluster carries out a display prove-out to verify that the warning/indicator miniature
bulbs for monitored systems are functioning correctly. When the ignition switch is in the ON position
with the engine off, the following warning indicators will prove out:
anti-lock brake (ABS) warning indicator
60 , Instrument Cluster for schematic and connector information.
2003 Mustang Workshop Manual
Section 418-01 .