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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1689 (Supplemental Restraint System) >> Diagnosis And Testing >> Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test - Supplemental Restraint System (SRS) >> Pinpoint Test N: DTCs B0091:11, B0091:93, B0097:11 and B0097:93 >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The Restraints Control Module (RCM) monitors the driver front door and passenger second row C-pillar side impact sensors and circuits for the following faults:

If a fault is detected, the RCM stores DTC B0091:11, B0091:93, B0097:11 or B0097:93 in memory and sends a message to the Instrument Panel Cluster (IPC) module to illuminate the air bag warning indicator.

The RCM communicates with each impact sensor, if the RCM is unable to communicate with the sensor, a DTC is stored in memory. A Continuous Memory Diagnostic Trouble Code (CMDTC) no operation  (fault status :93) can be set by a short to voltage on the return circuit of the impact sensor.

NOTE: A short to ground on either impact sensor feed circuit sets DTCs B0091:11 and B0097:11.
A short to voltage on either impact sensor feed circuit sets DTCs B0091:93 and B0097:93.
DTC DESCRIPTION TABLE

DTC Description Fault Trigger Condition
  • B0091:11 - Left Side Restraints Sensor 1: Circuit Short to Ground
When the RCM senses a shorted driver front door side impact sensor, a shorted passenger second row C-pillar side impact sensor, a short to ground on the driver front door side impact sensor feed circuit or a short to ground on the passenger second row C-pillar side impact sensor feed circuit, a fault is indicated.
  • B0091:93 - Left Side Restraints Sensor 1: No Operation
When the RCM senses a faulted driver front door side impact sensor, a short to voltage on the feed or return circuit of the driver front door side impact sensor, a short to voltage on the feed or return circuit of passenger second row C-pillar side impact sensor or an open feed or return circuit of the driver front door side impact sensor, a fault is indicated.
  • B0097:11 - Right Side Restraints Sensor 2: Circuit Short to Ground
When the RCM senses a shorted driver front door side impact sensor, a shorted passenger second row C-pillar side impact sensor, a short to ground on the driver front door side impact sensor feed circuit or a short to ground on the passenger second row C-pillar side impact sensor feed circuit, a fault is indicated.
  • B0097:93 - Right Side Restraints Sensor 2: No Operation
When the RCM senses a faulted passenger second row C-pillar side impact sensor, a short to voltage on the feed or return circuit of passenger second row C-pillar side impact sensor, a short to voltage on the feed or return circuit of the driver front door side impact sensor or an open feed or return circuit of the passenger second row C-pillar side impact sensor, a fault is indicated.

This pinpoint test is intended to diagnose the following: