Intermittent SIR MIL With DTC B0083 - keywords air airbag blow B008339 bag end front horn inflatable message restraints SDM sensor service supplemental SYM

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Some customers may comment that their air bag MIL comes on after repeated use of the horn and the SDM will set DTC B0083 sym 39 (Left Front Electronic Front End Sensor - Internal Electronic Failure). The root case may be the Left Front Electronic Sensor responding to the horn frequency during repeated or long horn honks.

During normal operation the SDM records the learned trace ID from each of the front end sensors. When DTC B0083 Sym 39 is set, the SDM will no longer accept valid information from the left front end sensor.

If the DTC was set due to repeated or long horn honks, the Front Electronic Sensor may become operational again by following the procedure below to reset the learned trace ID:

1. Remove the Right Front End Sensor
2. Unplug the Left Front End Sensor
3. Plug the Right Front End Sensor into the left harness
4. Turn the ignition key on for at least 20 seconds (Left side learns right sensor trace ID)
5. Turn the ignition key off
6. Reinstall the Right Front End Sensor back in its place and plug both sensors back in
7. Turn ignition key back on (Left side relearns left sensor trace ID)
8. Clear DTCs

If B0083 sym 39 returns after clearing the DTCs then replace the sensor.

If the dtc does not return then the cause could be from repeated or long horn honks. To correct this, install rubber washers to insulate the left horn at its mounting location.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.