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DATACENTER ERROR!!! Внимание! Авария в датацентре!!


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Diagnosis and repair



Normal Operation
The air bag diagnostic monitor measures the voltage at Pin C209-14, Circuit 937(R/W). The voltage at Pin C209-14 should be equal to battery voltage. If the voltage at Pin C209-14 drops below 8 volts, the air bag diagnostic monitor will flash a Lamp Fault Code (LFC) 12 on the air bag indicator If the voltage at Pin C209-14 drops below 5 volts, the air bag diagnostic monitor will store Diagnostic Trouble Code (DTC) B1867 in its memory. Should the loss of battery voltage at Pin C209-14 be intermittent or repaired, the air bag diagnostic monitor will flash an LFC 52 (or higher priority code if one exists) on the next ignition switch cycle.

Possible Causes

WARNING: DO NOT UNDER ANY CIRCUMSTANCES SUBSTITUTE ANOTHER FUSE VALUE FOR THE POWER DISTRIBUTION BOX FUSE 2(10 A). ANY FUSE OTHER THAN 10 A CAN CAUSE DISARMING FAILURE AND CAN RESULT IN DANGER TO THE OCCUPANTS OF THE VEHICLE. DO NOT ATTEMPT TO REPLACE THE POWER DISTRIBUTION BOX FUSE 2(10 A) UNLESS THE BATTERY GROUND CABLE HAS BEEN DISCONNECTED AND THE BACKUP POWER SUPPLY ENERGY HAS BEEN DEPLETED. TO DEPLETE THE BACKUP POWER SUPPLY ENERGY, DISCONNECT THE BATTERY GROUND CABLE AND WAIT ONE MINUTE.

NOTE: If a short to ground exists on any of the air bag module Circuits 607(LB/O), 614(GY/O), 615(GY/W), or 616(PK/BK), leading to a Lamp Fault Code (LFC) 13 or 53 and a Diagnostic Trouble Code(DTC) B1913; or, similarly, a short to ground exists on any of the air bag sensor circuits 617(PK/O), 619(PK/W), 624(Y/W), or 625(Y/LG), leading to an LFC 14 or 54 and DTC B1914, the air bag diagnostic monitor will activate an internal solid state switch at Pin C209-13 of the air bag diagnostic monitor The activation of this switch shorts Circuit 937(R/W) to ground, causing the power distribution box Fuse 2(10 A) to open, thus disarming the air bag Supplemental Restraint System (SRS) and preventing inadvertent air bag deployment.

Lost battery feed voltage at Pin C209-14, Circuit 937(R/W) can be caused by:
^An open in Circuit 937(R/W).
^An open in the power distribution box Fuse 2(10 A).
^An open in the circuits feeding the power distribution box Fuse 2(10 A).
^A short to ground on Circuit 937(R/W).

Low battery feed voltage at Pin C209-14, Circuit 937(R/W), can be caused by:
^A concern in the charging system causing battery voltage to drop below 8 volts.

After the air bag diagnostic monitor has disarmed the air bag system, it will not be enabled to disarm again until the appropriate condition (DTC B1913 or B1914) has been repaired and cleared by performing the appropriate pinpoint tests.



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