Ford 2003 Mustang Workshop Manual page 3531

Measure the resistance between in-line C314 Pin 1,
Circuit 70 (LB/WH), harness side and DLC C257 Pin 7,
Circuit 70 (LB/WH), harness side.
Is the resistance less than 5 ohms?
PINPOINT TEST B: THE MODULE DOES NOT RESPOND TO THE
DIAGNOSTIC TOOL — GENERIC ELECTRONIC MODULE (GEM)
B1 CHECK FOR OPEN BETWEEN THE DLC C251 AND GEM
C201e
Key in OFF position.
Disconnect: GEM C201e.
Inspect GEM C201e for damage, repair as necessary.
Measure the resistance between GEM C201e Pin 6, Circuit
70 (LB/WH), harness side and DLC C251 Pin 7, Circuit 70
(LB/WH), harness side.
Is the resistance less than 5 ohms?
PINPOINT TEST C: THE MODULE DOES NOT RESPOND TO THE
DIAGNOSTIC TOOL — RESTRAINT CONTROL MODULE (RCM)
C1 CHECK CIRCUIT 70 (LB/WH) FOR OPEN
Key in OFF position.
Inspect the DLC C251 and diagnostic tool terminal for
damage; repair as necessary.
Deactivate the air bag system. Refer to
Disconnect: RCM C2041.
Inspect RCM C2041 for damage, repair as necessary.
Measure the resistance between DLC C251 Pin 7, Circuit 70
Test Step
Test Step
Section 501-20B
between in-line C314 and in-line
C140. TEST the system for
normal operation.
No
REPAIR Circuit 70 (LB/WH)
between in-line C314 and DLC
C251. TEST the system for
normal operation.
Result / Action to Take
Yes
INSTALL a new GEM. For
additional information,
REFER to Section 419-10
TEST the system for normal
operation.
No
REPAIR Circuit 70 (LB/WH)
between the GEM C201e
and DLC C251. TEST the
system for normal
operation.
Result / Action to Take
Yes
INSTALL a new RCM.
REFER to Section 501-
20B . TEST the system for
.
normal operation.
No
.