Ford 2003 Mustang Workshop Manual page 3537

Is the voltage indicated in either measurement zero
volts?
F7 CHECK FOR SHORT TO GROUND AND POWER AT
DLC C251 — IN-LINE C140 DISCONNECTED
Key in OFF position.
Disconnect: In-Line C140.
Key in ON position.
Measure the voltage between DLC C251 Pin 7, Circuit 70
(LB/WH), harness side and C251 Pin 4, Circuit 1205
(BK); and between DLC C251 Pin 7, Circuit 70 (LB/WH),
harness side and C251 Pin 16, Circuit 1047 (LG/RD),
harness side.
Is the voltage indicated in either measurement zero
volts?
PINPOINT TEST G: NO MODULE/NETWORK COMMUNICATION —
SCP NETWORK
G1 CHECK DIAGNOSTIC TOOL PINS FOR DAMAGE
Inspect diagnostic tool pins for damage.
Are the diagnostic tool pins OK?
Test Step
Section 206-09A . For
additional information on the
anti-lock brake control module
with traction control, REFER to
Section 206-09B . TEST the
system for normal operation.
Yes
REPAIR Circuit 70 (LB/WH)
between in-line C314 and in-
line C140. TEST the system
for normal operation.
No
REPAIR Circuit 70 (LB/WH)
between in-line C140 and the
anti-lock brake control module
C135. TEST the system for
normal operation.
Result / Action to Take
Yes
GO to G2 .
No
REPAIR the diagnostic tool
terminals. TEST the system for
normal operation.