E 150 V8-4.6L SOHC VIN W (2004)
Air Bag(s) Arming and Disarming: Service and Repair
Prove Out Procedure
PROVE OUT THE SYSTEM
Prove out the system means to turn the ignition switch from the OFF to the RUN position and visually monitor the air bag indicator with the air bag
modules and belt and buckle assembly pretensioners installed. The air bag indicator will illuminate continuously for approximately six seconds and
then turn off. If an air bag supplemental restraint system (SRS) fault is present, the air bag indicator will either:
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fail to light.
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remain lit continuously.
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flash.
The flashing might not occur until approximately 30 seconds after the ignition switch has been turned from the OFF to the RUN position. This is the
time required for the restraint control (RCM) module to complete the testing of the SRS. If the air bag indicator is inoperative and an SRS fault exists,
a chime will sound in a pattern of five sets of five beeps, or a buzzer will sound for five seconds ON and five seconds OFF. If this occurs, the air bag
indicator will need to be repaired before diagnosis can continue.
