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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 369 (Supplemental Restraint System) >> Diagnosis And Testing >> Airbag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test P: DTCs B0001:2B, B0010:2B, B0020:2B, B0021:2B, B0028:2B, B0029:2B, B0050:2B, B00DF:2B, B1211:2B and B1214:2B >> Normal Operation

Normal Operation

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The RCM monitors all deployable device and sensor circuits for a signal cross coupled (short) between circuits. If the RCM detects a short between the circuits of one device and another device, it stores a DTC for each of the signal cross coupled faults in memory. The RCM sends a message to the IPC to illuminate the airbag warning indicator. When a normal loop fault is present (one loop is either shorted to battery/ground, open circuit or low resistance), signal cross coupled diagnostics are not active. Once the normal loop fault is repaired, the signal cross coupled diagnostics resume.

DTC DESCRIPTION

DTC Description Fault Trigger Condition
  • B0001:2B - Driver Frontal Stage 1 Deployment Control: Signal Cross Coupled
 If the RCM detects a short between the driver airbag circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B0010:2B - Passenger Frontal Stage 1 Deployment Control: Signal Cross Coupled
 If the RCM detects a short between the passenger airbag circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B0020:2B - Left Side Airbag Deployment Control: Signal Cross Coupled
 If the RCM detects a short between the driver seat side airbag circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B0021:2B - Left Curtain Deployment Control: Signal Cross Coupled
 If the RCM detects a short between the driver Safety Canopy® circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B0028:2B - Right Side Airbag Deployment Control: Signal Cross Coupled
 If the RCM detects a short between the passenger seat side airbag circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B0029:2B - Right Curtain Deployment Control: Signal Cross Coupled
 If the RCM detects a short between the passenger Safety Canopy® circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B0050:2B - Driver Seatbelt Sensor: Signal Cross Coupled
 If the RCM detects a short between the driver safety belt sensor circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B00DF:2B - Passenger Restraints Disable Switch: Signal Cross Coupled
 If the RCM detects a short between the PAD circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B1211:2B - Driver Seatbelt Retractor Pretensioner Deployment Control: Signal Cross Coupled
 If the RCM detects a short between the driver safety belt retractor pretensioner circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.
  • B1214:2B - Passenger Seatbelt Retractor Pretensioner Deployment Control: Signal Cross Coupled
 If the RCM detects a short between the passenger safety belt retractor pretensioner circuits and the circuits of another SRS component, it sets this DTC and the DTC of the corresponding SRS component.

This pinpoint test is intended to diagnose the following: 

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