Ford Mustang (1999-2004) Service Manual: Module Communications Network
General Specifications
Communications Network
Module Communications Network
Communications Network (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 14 , Multiplex Communication Network for
schematic and connector
information.
Special Tool(s)
73 Digital Multimeter or
equivalent
105-R0051
...
Other materials:
Pinpoint Tests
PINPOINT TEST A: THE ENGINE DOES NOT CRANK AND THE
RELAY DOES CLICK
Test Step
Result / Action to Take
A1 CHECK THE VOLTAGE TO THE STARTER RELAY
YesGO to A2 .
No
REPAIR circuit 1050 (LG/VT) for an open. TEST the
system for normal operation. ...
Pinpoint Tests
PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT
CLUSTER
Test Step
Result / Action to Take
A1 CHECK THE BATTERY POWER SUPPLY TO THE INSTRUMENT
CLUSTER
YesGO to A2 .
No
REPAIR the circuit.
TEST the system
for normal
operation.
...
Engine System - General Information
General Specifications
Engine
NOTE: This section contains information, steps and procedures that may
not be specific to your
engine.
This section covers general procedures and diagnosis and testing of the engine
system, except for
exhaust emission control ...
