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Discussion Starter #1
After the battery in my 92 LX died and the car sat for around 3 months, with a new battery in it now, my air bag light is flashing. It not a code flash with a number of times and then a pause, instead its a rapid constant flashing. Anyone know what I should check first?
 

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99(1) All crash sensors disconnected T

(1) - Air bag indicator flashing very fast continuously.

«1992 Mustang Service Manual Table of Contents»
«Group 01: BODY»
«Section 01-20B: Restraints, Passive--Supplemental Air Bag System»
«DIAGNOSIS AND TESTING»
«PINPOINT TEST T: FAULT INDICATION--AIR BAG INDICATOR FLASHES FAULT CODE 99--PROBABLE FAULT--ALL CRASH SENSORS DISCONNECTED (Index)»


PINPOINT TEST T: FAULT INDICATION--AIR BAG INDICATOR FLASHES FAULT CODE 99--PROBABLE FAULT--ALL CRASH SENSORS DISCONNECTED


T1 DEACTIVATE SYSTEM


l Deactivate system.

l Are all crash sensors connected?

Yes
REPLACE diagnostic monitor. VERIFY system. REACTIVATE system.

No
CONNECT all crash sensors. VERIFY system. REACTIVATE system.
 

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Discussion Starter #5
Module was still plugged in, nothing has changed. Car just sat for awhile, so I think that the diagnostic module needs to be replaced.
I wouldn't bother if it wasn't for the irritating flashing dash light.
 
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