Tests AI
PINPOINT TEST AI: LFC 44/DTC U2017 - DRIVER SIDE IMPACT SENSOR COMMUNICATION FAULTTest AI1:
Test AI2:
Test AI3-AI4:
Test AI5:
Test AI6-AI7:
Test AI8-AI9:
Normal Operation
The driver side impact sensor monitors the severity of a impact event. If the impact event is severe enough, the sensor will signal the restraints control module (RCM) to deploy the driver side air bag.
The RCM monitors the two wire current loop to the driver side impact sensor for a signal that is out of the expected range. If the RCM detects an out-of-range signal from the driver side impact sensor, indicating a sensor communication fault, it will store diagnostic trouble code (DTC) U2017 and flash a lamp fault code (LFC) 44 (or a higher priority code if one exists) on the air bag indicator.
Possible Causes
A driver seat side impact sensor communication fault can be caused by:
- damaged wiring on circuit 7-JA39 (YE).
- damaged wiring on circuit 9-JA39 (BN).
- damaged driver side impact sensor.