Ford 2003 Mustang Workshop Manual page 4052

System (SRS) in the Diagnosis and Testing portion of this section.
Key in OFF position.
Key in ON position.
Enter the following diagnostic mode on the diagnostic tool: On-
Demand Self Test.
Was DTC B1933 retrieved?
I3 CHECK THE PASSENGER AIR BAG MODULE CIRCUIT
Key in OFF position.
Disconnect: RCM C2041.
Disconnect: Passenger Air Bag Restraint System Diagnostic Tool.
NOTE: By disconnecting the RCM connector, circuit 607 (LB/OG)
and circuit 616 (PK/BK) of the RCM connector are shorted together
with a shorting bar. Do not remove the shorting bar.
NOTE: Zero the multimeter prior to taking the measurement.
Measure the resistance between passenger air bag C256, circuit 607
(LB/OG), harness side and passenger air bag C256, circuit 616
(PK/BK), harness side.
Is the resistance greater than 0.5 ohm?
I4 CHECK FOR AN INTERMITTENT FAULT
Refer to the continuous DTCs recorded during Step I1.
Was the continuous DTC retrieved during Step I1 an intermittent
fault?
I5 CHECK FOR ADDITIONAL DTCs
Refer to the continuous DTCs recorded during Step I1.
Were any continuous DTCs retrieved during Step I1?
Yes
REPAIR the circuit
(s) as necessary.
GO to I5 .
No
INSTALL a new
RCM. GO to I5 .
Yes
CHECK for causes
of intermittent high
resistance on
circuit 607 (LB/OG)
and circuit 616
(PK/BK). Attempt
to recreate the
hard fault by
flexing the wire
harness and
cycling the ignition
key frequently.
REPAIR any
intermittent
concerns found.
GO to I5 .
No
GO to I5 .
Yes
Do not clear any
DTCs until all
DTCs have been
resolved. GO to
the Restraints
Control Module
(RCM) Diagnostic