C: LFC 19/DTC B1231 - Crash Data Memory Full

Normal Operation
When the air bags are deployed during a collision, the air bag Electronic Crash Sensor (ECS) module will flash a Lamp Fault Code (LFC) 19 on the air bag indicator and store a Diagnostic Trouble Code (DTC) B1231 in memory. The LFC 19 and DTC B1231 indicate that a crash has been recorded by the ECS.

WARNING:
- The Electronic Crash Sensor (ECS) module orientation is critical for proper system operation. If a vehicle equipped with an air bag Supplemental Restraint System (SRS) has been involved in a collision in which the center console area has been damaged, inspect the mounting and bracket for deformation. If damaged, the ECS module should be replaced. In addition, make sure the area of the ECS module mounting is restored to its original condition.
- Clearing DTC B1231 will potentially remove all records of the crash event.


Possible Causes
Crash data memory full is caused by a crash event that deployed the air bags.

Pinpoint Test Steps:

C1-C3: