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Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1423 (Supplemental Restraint System) >> Diagnosis And Testing >> Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test - Restraints Control Module (RCM) >> Pinpoint Test M: DTCs B0091:11, B0091:93, B0097:11 and B0097:93 >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

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

If a fault is detected, the RCM  will store DTC B0091:11, B0091:93, B0097:11 or B0097:93 in memory and send a message to the Instrument Cluster (IC) 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 will be stored in memory. A Continuous Memory Diagnostic Trouble Code (CMDTC) no operation (failure type :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 will set DTCs B0091:11 and B0097:11.

A short to voltage on either impact sensor feed or return circuit will set DTCs B0091:93 and B0097:93.

DTC DESCRIPTION CHART

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

This pinpoint test is intended to diagnose the following: 

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