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 N: B1892-Air Bag Tone Warning Circuit Short to Ground/Open  
 
 
  Test N: B1892-Air Bag Tone Warning Circuit Short to Ground/Open  
 

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Normal Operation
The air bag Electronic Crash Sensor (ECS) module monitors its connection to the Total Warning System (TWS) module at pin 13. This connection is used to signal a chime if the air bag indicator is inoperative. If the ECS detects a short to ground or open on the connection to the TWS, it will store a Diagnostic Trouble Code (DTC) B1892 in memory.

Possible Causes
An air bag tone warning indicator circuit shorted to ground or open could be caused by:

  • a short to ground or open on circuit 940 (GY).
  • a damaged or inoperative TWS module.