Ford 2003 Mustang Workshop Manual page 4072

P4 CHECK CIRCUIT 70 (LB/WH) FOR SHORT TO GROUND
Measure the resistance to ground at DLC C251 pin 7, circuit 70
(LB/WH).
Is the resistance less than 10,000 ohms?
P5 CHECK CIRCUIT 70 (LB/WH) FOR AN OPEN
Measure the resistance between RCM C2041 pin 5, circuit 70
(LB/WH), harness side and DLC C251 pin 7, circuit 70 (LB/WH),
harness side.
Is the resistance less than 5 ohms?
No
GO to P4 .
Yes
REPAIR the circuit.
RETEST the
communication to
RCM.
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to Air Bag
Supplemental
Restraint System
(SRS) in this
section.
No
GO to P5 .
Yes
INSTALL a new
RCM. RETEST the
communication to
RCM.
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to Air Bag
Supplemental
Restraint System
(SRS) in this
section.
No
REPAIR the circuit.
RETEST the
communication to
RCM.
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to Air Bag
Supplemental
Restraint System
(SRS) in this
section.