Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
 
Vehicle » Restraints and Safety Systems » Air Bag Systems » Testing and Inspection » Pinpoint Tests » Test I: LFC 16/DTC B1925 - Passenger Air Bag CKT Shorted to Batt or Ign  
 
 
  Test I: LFC 16/DTC B1925 - Passenger Air Bag CKT Shorted to Batt or Ign  
 

I1 - I2
  

I2 - I3
  

I4 - I5
  

I6
  

Normal Operation
The air bag Electronic Crash Sensor (ECS) module checks for passenger air bag circuit shorts to battery or ignition by monitoring the voltage of circuits 943 (YE/RD) and 944 (RD) at pins 14 and 28. If the ECS detects a short to battery or ignition on either of these pins, it will store a Diagnostic Trouble Code (DTC) B1925 in memory and flash a Lamp Fault Code (LFC) 16 (or higher priority code if one exists) on the air bag indicator.

Possible Causes
A passenger air bag circuit shorted to battery or ignition could be caused by:

  • a short to battery or ignition on circuit 943 (YE/RD).
  • a short to battery or ignition on circuit 944 (RD).
  • a short to battery or ignition on the passenger air bag module.