Component Tests and General Diagnostics

Rapid Continuous Flashing of Air Bag Indicator -- Both Primary Crash Sensors Disconnected


NORMAL OPERATION

Each primary crash sensor has three wires.

- The first wire is used for air bag deployment.
- The second wire is used to monitor the sensor's connection to the air bag diagnostic monitor. (Refer to Diagnostic Trouble Codes 41 , 81 and 42 , 82 for details.)
- The third is used to monitor the mounting (ground) of the sensor to sheet metal. (Refer to Diagnostic Trouble Codes 44 , 84 and 45 , 85 for details.)
If the air bag diagnostic monitor detects that BOTH primary crash sensors are disconnected AND both primary crash sensors are not mounted, the air bag diagnostic monitor will flash the air bag indicator continuously at a rapid rate.

- In the assembly plant, this will not result in any stored Diagnostic Trouble Codes.
- Outside the assembly plant, however, Diagnostic Trouble Codes 41, 42, 44, and 45 will be stored. These will flash out as Diagnostic Trouble Codes 81, 82, 84, 85 on the next ignition switch cycles if the condition is serviced.

POSSIBLE CAUSES

Rapid Continuous Flashing of the air bag indicator can be caused by:

- Both primary crash sensors disconnected from wiring harness.
- Main wiring harness not connected to engine compartment wiring harness.

Pinpoint Test

Refer to Pinpoint Tests for Diagnostic Trouble Codes 41 , 42 , 44 , and 45 .