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 A: Air Bag Indicator Continuously ON - ECS Module Disconnected or Inop.  
 
 
  Test A: Air Bag Indicator Continuously ON - ECS Module Disconnected or Inop.  
 

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Normal Operation

NOTE: During normal operation the air bag indicator will be lit continuously for 6 seconds after the ignition switch is placed in the RUN position and after five cycles of a Lamp Fault Code (LFC) if a fault exists. Be sure to cycle the ignition switch and look for a 6 second indicator prove-out without LFCs.

The air bag Electronic Crash Sensor (ECS) module will communicate Diagnostic Trouble Codes (DTCs) through the scan tool using the Data Link Connector (DLC) . If the scan tool displays NO COMMUNICATION when retrieving continuous DTCs, use this pinpoint test to troubleshoot the system.

Possible Causes
An air bag indicator that is illuminated continuously could be caused by one of the following:

  • the battery or ignition circuit damaged
  • the ECS module disconnected from the vehicle harness
  • a loss of ECS module ground circuits
  • the ECS module inoperative
  • the scan tool damaged