Ford 2003 Mustang Workshop Manual page 4058

K5 CHECK FOR ADDITIONAL DTCs
Refer to the continuous DTCs recorded during Step K1.
Were any continuous DTCs retrieved during Step K1?
Pinpoint Test L: B1892 — Air Bag Tone Warning Indicator Circuit Shorted to Ground or Open
Normal Operation
The restraints control module (RCM) monitors its connection to the generic electronic module (GEM) at
C201e pin 10. This connection is used to signal a chime if the air bag indicator is inoperative and
another SRS fault exists. If the RCM detects a short to ground or open on the connection to the GEM,
it will store a diagnostic trouble code (DTC) B1892 in memory.
Possible Causes
An air bag tone warning indicator circuit short to ground or open can be caused by:
a short to ground or open on circuit 1083 (LB/BK).
a damaged or inoperative GEM.
PINPOINT TEST L: DTC B1892 — AIR BAG TONE WARNING
INDICATOR CIRCUIT SHORTED TO GROUND OR OPEN
L1 CHECK FOR A HARD OR INTERMITTENT DTC
Test Step
concerns found.
GO to K5 .
No
GO to K5 .
Yes
Do not clear any
DTCs until all
DTCs have been
resolved. GO to
the Restraints
Control Module
(RCM) Diagnostic
Trouble Code
(DTC) Priority
Table in this
section for pinpoint
test direction.
No
RECONNECT the
system.
REACTIVATE the
system. PROVE
OUT the system.
REFER to Air Bag
Supplemental
Restraint System
(SRS) in this
section. CLEAR all
DTCs.
Result / Action to
Take