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A 1-2 is:

Low battery voltage

Pinpoint Test A: LFC/DTC 12 - Low Battery Voltage


Normal Operation

The air bag diagnostic monitor measures the voltage at pin C20a - 13, circuit 29 - MA10 (OG/GN) of the air bag diagnostic monitor connector. Voltage at pin C20a - 13, circuit 29 - MA10 (OG/GN) should be equal to battery voltage. If the voltage measured at pin C20a - 13, circuit 29 - MA10 (OG/GN) drops to less than 9 volts, the diagnostic monitor sends a signal to the air bag indicator and flashes diagnostic trouble code (DTC) 12.


Possible Causes

Low battery voltage at air bag diagnostic monitor pin C20a - 13, circuit 29 - MA10 (OG/GN) can be caused by the following:

Note:
If the 10A fuse 36 is blown, be sure to diagnose the system for possible causes 2 and 3 following.

1. An open circuit that would prevent battery voltage from reaching air bag diagnostic monitor pin C20a - 13, circuit 29 - MA10 (OG/GN).

2. A short to ground in circuit 29 - MA15 (OG) or circuit 7 - MA20 (YE/BK) may result in a blown 10A fuse 36.

3. An internal short to ground within the safing sensor may result in a blown 10A fuse 36.

4. A problem in the charging system causing battery voltage to drop below 9 volts.

Don't let them tell you that 'nothing is wrong'. When the airbag monitor calls a fault the airbags are disabled and will not fire in the event of an accident.
Find a dealer that will troubleshoot and correct the problem.

AL