Airbag code 12

Tiny
RICKSHAULING
  • MEMBER
  • 2007 FORD F-150
  • 4.2L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
Airbag light is on and has a number 12 code and then it stays on the code says low battery feed. I have change the front end crash sensor, switched out battery, checked all 10 amp fuses and also tried to reset the light and it still come back to a code 12. Checked all connections under the seats on the driver side and also good on passenger side good. Also the sensor works that senses a passenger is in the seat and the the passenger airbag light goes off telling me the air bag is on. I tried all I know just cannot figure out the problem. Is there anyway you could help me out? Surely would appreciate it. Thank you
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Sunday, July 28th, 2019 AT 6:01 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
Good morning,

This code has to do with a power feed to the module for the airbag.

I attached a flow chart and description for the procedure to find the failure.

Roy

Normal Operation
During normal operation, the air bag indicator will illuminate continuously for approximately 6 seconds and then go out after the ignition switch is placed in the ON or START position and no air bag fault exists. The air bag indicator will remain illuminated continuously after 5 cycles of a lamp fault code (LFC), if a fault exists. Be sure to cycle the ignition switch and look for an approximate 6-second indicator prove-out without LFCs.

The restraints control module (RCM) will communicate diagnostic trouble codes (DTCs) to the scan tool through the data link connector (DLC). If the scan tool displays NO COMMUNICATION when retrieving continuous memory DTCs, REFER to Information Bus (Module Communications Network).

Possible Causes
An air bag indicator that is illuminated continuously can be caused by:
- fuse.
- damaged ignition circuit.
- RCM disconnected from the vehicle harness.
- a loss of RCM signal ground.
- a faulted RCM.
- damaged wiring, terminals or connectors.
- a loss of RCM ignition feed.
- a faulted instrument cluster module
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Monday, July 29th, 2019 AT 3:34 AM

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