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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2454 (Supplemental Restraint System) >> Diagnosis And Testing >> Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test - Restraints Control Module (RCM) >> Pinpoint Test W: DTCs B1213:11, B1213:12, B1213:13 and B1213:1A >> 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) continuously monitors the passenger safety belt buckle pretensioner and circuits for the following faults:

If a fault is detected, the RCM  will store DTC B1213:11, B1213:12, B1213:13 or B1213:1A in memory and send a message to the Instrument Cluster (IC) module to illuminate the air bag warning indicator.

The RCM  analyzes the deployment loop resistance and uses this measurement in combination with an age correction factor to determine if a fault exists. The value displayed in the PID is the deployment loop resistance as measured by the RCM  . If the value displayed is lower or higher than the desired range (refer to diagram below), the RCM  can set a DTC. As the deployment loop resistance drifts farther outside the desired range, the chance for a DTC increases. The RCM  fault trigger threshold may vary as the vehicle ages. Small variations in resistance can occur due to the effect of road vibrations on terminal fit and/or temperature changes. These variables can result in an intermittent fault. For this reason, the test will require the PID value to be within the desired range before the fault is considered repaired, regardless if the module is reporting an on-demand DTC at time of diagnosis. Following this direction will help make sure that minor changes in resistance do not create a repeat concern. This test will use a process of elimination to diagnose each part of the deployment loop circuit including:

Fig 1: RCM Analyzes Resistance Diagram
G06100015Courtesy of FORD MOTOR CO.
DTC DESCRIPTION CHART

DTC Description Fault Trigger Conditiona
  • B1213:11 - Passenger Seatbelt Buckle Pretensioner Deployment Control: Circuit Short to Ground
 When the RCM  senses a short to ground on either passenger safety belt buckle pretensioner circuit, a fault will be indicated.
  • B1213:12 - Passenger Seatbelt Buckle Pretensioner Deployment Control: Short to Battery
 When the RCM  senses a short to battery on either passenger safety belt buckle pretensioner circuit, a fault will be indicated.
  • B1213:13 - Passenger Seatbelt Buckle Pretensioner Deployment Control: Circuit Open
 When the RCM  measures greater than the desired resistance range between the passenger safety belt buckle pretensioner circuits, a fault will be indicated.
  • B12131:1A - Passenger Seatbelt Buckle Pretensioner Deployment Control: Circuit Resistance Below Threshold
 When the RCM  measures less than the desired resistance range between the passenger safety belt buckle pretensioner circuits, a fault will be indicated.

This pinpoint test is intended to diagnose the following: 

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