Ford 2003 Mustang Workshop Manual page 3275

The SERVICE ENGINE
SOON indicator is
never/always on
The turn/hazard
indicator is never/always
on
The THEFT indicator is
never/always on
The traction control
indicator is never/always
on
The integrated circuit
display is
inoperative/erratic
The instrument cluster is
inoperative
Pinpoint Tests
PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT
CLUSTER
Circuitry.
SERVICE
ENGINE
SOON
indicator bulb.
Powertrain
control module
(PCM).
Instrument
cluster.
Circuitry.
Turn/hazard
bulb(s).
Instrument
cluster.
Circuitry.
THEFT
indicator LED.
Instrument
cluster.
Circuitry.
Traction control
switch.
Standard
corporate
protocol (SCP)
network.
Powertrain
control module
(PCM).
ABS module.
Instrument
cluster.
Instrument
cluster.
Central junction
box (CJB) fuse
(s):
11
(15A).
21 (5A).
34
(20A).
Circuitry.
Instrument
cluster.
Test Step
Go To Pinpoint Test S .
Go To Pinpoint Test T .
REFER to Section 419-01
Go To Pinpoint Test U
Go To Pinpoint Test V .
Go To Pinpoint Test V .
Result / Action to
Take
.
.